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<div class="header">
  <div class="summary">
<a href="#nested-classes">Classes</a> &#124;
<a href="#pub-types">Public Types</a> &#124;
<a href="#pub-methods">Public Member Functions</a> &#124;
<a href="#pub-static-methods">Static Public Member Functions</a> &#124;
<a href="classExpression-members.html">List of all members</a>  </div>
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<div class="title">Expression Class Reference</div>  </div>
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<p>A class for dynamically evaluating simple numeric expressions.  
 <a href="classExpression.html#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression_1_1Scope.html">Scope</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">When evaluating an <a class="el" href="classExpression.html" title="A class for dynamically evaluating simple numeric expressions. ">Expression</a> object, this class is used to resolve symbols and perform functions that the expression uses.  <a href="classExpression_1_1Scope.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structExpression_1_1Symbol.html">Symbol</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Represents a symbol that is used in an <a class="el" href="classExpression.html" title="A class for dynamically evaluating simple numeric expressions. ">Expression</a>.  <a href="structExpression_1_1Symbol.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:aa416ac50fdbe8bdea9c59f5c78f0c85b"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#aa416ac50fdbe8bdea9c59f5c78f0c85b">Type</a> { <a class="el" href="classExpression.html#aa416ac50fdbe8bdea9c59f5c78f0c85ba4c05ef0368ceb383ecdd4933ddb3b5db">constantType</a>, 
<a class="el" href="classExpression.html#aa416ac50fdbe8bdea9c59f5c78f0c85ba4af6ecec6a8598073b3f70f7f1c10eb5">functionType</a>, 
<a class="el" href="classExpression.html#aa416ac50fdbe8bdea9c59f5c78f0c85ba222a2fd6162d6870e34cd9f8e6dc4dc5">operatorType</a>, 
<a class="el" href="classExpression.html#aa416ac50fdbe8bdea9c59f5c78f0c85baef74a77024f2e22f163d3b2346b99162">symbolType</a>
 }<tr class="memdesc:aa416ac50fdbe8bdea9c59f5c78f0c85b"><td class="mdescLeft">&#160;</td><td class="mdescRight"><a class="el" href="classExpression.html" title="A class for dynamically evaluating simple numeric expressions. ">Expression</a> type.  <a href="classExpression.html#aa416ac50fdbe8bdea9c59f5c78f0c85b">More...</a><br /></td></tr>
</td></tr>
<tr class="separator:aa416ac50fdbe8bdea9c59f5c78f0c85b"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:afcf87716bf0abfe8d414c92529e1564a"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#afcf87716bf0abfe8d414c92529e1564a">Expression</a> ()</td></tr>
<tr class="memdesc:afcf87716bf0abfe8d414c92529e1564a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates a simple expression with a value of 0.  <a href="#afcf87716bf0abfe8d414c92529e1564a">More...</a><br /></td></tr>
<tr class="separator:afcf87716bf0abfe8d414c92529e1564a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3e99570b177da619eeb2c5787cbb148e"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a3e99570b177da619eeb2c5787cbb148e">~Expression</a> ()</td></tr>
<tr class="memdesc:a3e99570b177da619eeb2c5787cbb148e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destructor.  <a href="#a3e99570b177da619eeb2c5787cbb148e">More...</a><br /></td></tr>
<tr class="separator:a3e99570b177da619eeb2c5787cbb148e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a568506b67cd65c7f8c2885c9146c98bd"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a568506b67cd65c7f8c2885c9146c98bd">Expression</a> (const <a class="el" href="classExpression.html">Expression</a> &amp;)</td></tr>
<tr class="memdesc:a568506b67cd65c7f8c2885c9146c98bd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates a copy of an expression.  <a href="#a568506b67cd65c7f8c2885c9146c98bd">More...</a><br /></td></tr>
<tr class="separator:a568506b67cd65c7f8c2885c9146c98bd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aeec8bdd655b0dc89c8205e67884f091b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classExpression.html">Expression</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#aeec8bdd655b0dc89c8205e67884f091b">operator=</a> (const <a class="el" href="classExpression.html">Expression</a> &amp;)</td></tr>
<tr class="memdesc:aeec8bdd655b0dc89c8205e67884f091b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Copies another expression.  <a href="#aeec8bdd655b0dc89c8205e67884f091b">More...</a><br /></td></tr>
<tr class="separator:aeec8bdd655b0dc89c8205e67884f091b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a29b040da8e934faeb1efa47f0beeec77"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a29b040da8e934faeb1efa47f0beeec77">Expression</a> (<a class="el" href="classExpression.html">Expression</a> &amp;&amp;) noexcept</td></tr>
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<tr class="memitem:a680c8e41ee22156ded3e55ad67d67a21"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classExpression.html">Expression</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a680c8e41ee22156ded3e55ad67d67a21">operator=</a> (<a class="el" href="classExpression.html">Expression</a> &amp;&amp;) noexcept</td></tr>
<tr class="separator:a680c8e41ee22156ded3e55ad67d67a21"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a342898044343143057a6a7f1b0db0286"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a342898044343143057a6a7f1b0db0286">Expression</a> (double constant)</td></tr>
<tr class="memdesc:a342898044343143057a6a7f1b0db0286"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates a simple expression with a specified constant value.  <a href="#a342898044343143057a6a7f1b0db0286">More...</a><br /></td></tr>
<tr class="separator:a342898044343143057a6a7f1b0db0286"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2c3dc1d26f9bfd463c3ef228bf7c39c9"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a2c3dc1d26f9bfd463c3ef228bf7c39c9">Expression</a> (const <a class="el" href="classString.html">String</a> &amp;stringToParse, <a class="el" href="classString.html">String</a> &amp;parseError)</td></tr>
<tr class="memdesc:a2c3dc1d26f9bfd463c3ef228bf7c39c9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Attempts to create an expression by parsing a string.  <a href="#a2c3dc1d26f9bfd463c3ef228bf7c39c9">More...</a><br /></td></tr>
<tr class="separator:a2c3dc1d26f9bfd463c3ef228bf7c39c9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9d896b03617295f713fb733f6fe35ea7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classString.html">String</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a9d896b03617295f713fb733f6fe35ea7">toString</a> () const</td></tr>
<tr class="memdesc:a9d896b03617295f713fb733f6fe35ea7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a string version of the expression.  <a href="#a9d896b03617295f713fb733f6fe35ea7">More...</a><br /></td></tr>
<tr class="separator:a9d896b03617295f713fb733f6fe35ea7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a400bc561a54ddf91853e9595e8436039"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classExpression.html">Expression</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a400bc561a54ddf91853e9595e8436039">operator+</a> (const <a class="el" href="classExpression.html">Expression</a> &amp;) const</td></tr>
<tr class="memdesc:a400bc561a54ddf91853e9595e8436039"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns an expression which is an addition operation of two existing expressions.  <a href="#a400bc561a54ddf91853e9595e8436039">More...</a><br /></td></tr>
<tr class="separator:a400bc561a54ddf91853e9595e8436039"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a57237dfcc1175da243556232e8a2941e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classExpression.html">Expression</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a57237dfcc1175da243556232e8a2941e">operator-</a> (const <a class="el" href="classExpression.html">Expression</a> &amp;) const</td></tr>
<tr class="memdesc:a57237dfcc1175da243556232e8a2941e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns an expression which is a subtraction operation of two existing expressions.  <a href="#a57237dfcc1175da243556232e8a2941e">More...</a><br /></td></tr>
<tr class="separator:a57237dfcc1175da243556232e8a2941e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2539656ac3cde3ac741a4a0dd4fc1740"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classExpression.html">Expression</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a2539656ac3cde3ac741a4a0dd4fc1740">operator*</a> (const <a class="el" href="classExpression.html">Expression</a> &amp;) const</td></tr>
<tr class="memdesc:a2539656ac3cde3ac741a4a0dd4fc1740"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns an expression which is a multiplication operation of two existing expressions.  <a href="#a2539656ac3cde3ac741a4a0dd4fc1740">More...</a><br /></td></tr>
<tr class="separator:a2539656ac3cde3ac741a4a0dd4fc1740"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a47ae14ebdf5c68df219bf7e2587b505e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classExpression.html">Expression</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a47ae14ebdf5c68df219bf7e2587b505e">operator/</a> (const <a class="el" href="classExpression.html">Expression</a> &amp;) const</td></tr>
<tr class="memdesc:a47ae14ebdf5c68df219bf7e2587b505e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns an expression which is a division operation of two existing expressions.  <a href="#a47ae14ebdf5c68df219bf7e2587b505e">More...</a><br /></td></tr>
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<tr class="memitem:a3f565bdfa78531ebf768409722c20a5b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classExpression.html">Expression</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a3f565bdfa78531ebf768409722c20a5b">operator-</a> () const</td></tr>
<tr class="memdesc:a3f565bdfa78531ebf768409722c20a5b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns an expression which performs a negation operation on an existing expression.  <a href="#a3f565bdfa78531ebf768409722c20a5b">More...</a><br /></td></tr>
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<tr class="memitem:ac08d2b72ddf6f12de000f5440b47ee06"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#ac08d2b72ddf6f12de000f5440b47ee06">evaluate</a> () const</td></tr>
<tr class="memdesc:ac08d2b72ddf6f12de000f5440b47ee06"><td class="mdescLeft">&#160;</td><td class="mdescRight">Evaluates this expression, without using a <a class="el" href="classExpression_1_1Scope.html" title="When evaluating an Expression object, this class is used to resolve symbols and perform functions tha...">Scope</a>.  <a href="#ac08d2b72ddf6f12de000f5440b47ee06">More...</a><br /></td></tr>
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<tr class="memitem:a3979c9d65b3ce9555eeb7923322fc2ff"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a3979c9d65b3ce9555eeb7923322fc2ff">evaluate</a> (const <a class="el" href="classExpression_1_1Scope.html">Scope</a> &amp;scope) const</td></tr>
<tr class="memdesc:a3979c9d65b3ce9555eeb7923322fc2ff"><td class="mdescLeft">&#160;</td><td class="mdescRight">Evaluates this expression, providing a scope that should be able to evaluate any symbols or functions that it uses.  <a href="#a3979c9d65b3ce9555eeb7923322fc2ff">More...</a><br /></td></tr>
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<tr class="memitem:a19757bc21a259f6a7e3bc2f50e5082bc"><td class="memItemLeft" align="right" valign="top">double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a19757bc21a259f6a7e3bc2f50e5082bc">evaluate</a> (const <a class="el" href="classExpression_1_1Scope.html">Scope</a> &amp;scope, <a class="el" href="classString.html">String</a> &amp;evaluationError) const</td></tr>
<tr class="memdesc:a19757bc21a259f6a7e3bc2f50e5082bc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Evaluates this expression, providing a scope that should be able to evaluate any symbols or functions that it uses.  <a href="#a19757bc21a259f6a7e3bc2f50e5082bc">More...</a><br /></td></tr>
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<tr class="memitem:ae269dbdef72d7e44d85dd38aa4d7509e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classExpression.html">Expression</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#ae269dbdef72d7e44d85dd38aa4d7509e">adjustedToGiveNewResult</a> (double targetValue, const <a class="el" href="classExpression_1_1Scope.html">Scope</a> &amp;scope) const</td></tr>
<tr class="memdesc:ae269dbdef72d7e44d85dd38aa4d7509e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Attempts to return an expression which is a copy of this one, but with a constant adjusted to make the expression resolve to a target value.  <a href="#ae269dbdef72d7e44d85dd38aa4d7509e">More...</a><br /></td></tr>
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<tr class="memitem:acec447e85b793db76fbcb46e72bf1cd9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classExpression.html">Expression</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#acec447e85b793db76fbcb46e72bf1cd9">withRenamedSymbol</a> (const <a class="el" href="structExpression_1_1Symbol.html">Symbol</a> &amp;oldSymbol, const <a class="el" href="classString.html">String</a> &amp;newName, const <a class="el" href="classExpression_1_1Scope.html">Scope</a> &amp;scope) const</td></tr>
<tr class="memdesc:acec447e85b793db76fbcb46e72bf1cd9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a copy of this expression in which all instances of a given symbol have been renamed.  <a href="#acec447e85b793db76fbcb46e72bf1cd9">More...</a><br /></td></tr>
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<tr class="memitem:abb2ba5a8d00fdace61f90be94997e1b7"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#abb2ba5a8d00fdace61f90be94997e1b7">referencesSymbol</a> (const <a class="el" href="structExpression_1_1Symbol.html">Symbol</a> &amp;<a class="el" href="classExpression.html#a596e6864c20b0d6ac5f42014103e6349">symbol</a>, const <a class="el" href="classExpression_1_1Scope.html">Scope</a> &amp;scope) const</td></tr>
<tr class="memdesc:abb2ba5a8d00fdace61f90be94997e1b7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns true if this expression makes use of the specified symbol.  <a href="#abb2ba5a8d00fdace61f90be94997e1b7">More...</a><br /></td></tr>
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<tr class="memitem:a81d8a297c5c153159486a4f1acab2b61"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a81d8a297c5c153159486a4f1acab2b61">usesAnySymbols</a> () const</td></tr>
<tr class="memdesc:a81d8a297c5c153159486a4f1acab2b61"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns true if this expression contains any symbols.  <a href="#a81d8a297c5c153159486a4f1acab2b61">More...</a><br /></td></tr>
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<tr class="memitem:ac3eb5b49a7376242434754e82e185112"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#ac3eb5b49a7376242434754e82e185112">findReferencedSymbols</a> (<a class="el" href="classArray.html">Array</a>&lt; <a class="el" href="structExpression_1_1Symbol.html">Symbol</a> &gt; &amp;results, const <a class="el" href="classExpression_1_1Scope.html">Scope</a> &amp;scope) const</td></tr>
<tr class="memdesc:ac3eb5b49a7376242434754e82e185112"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a list of all symbols that may be needed to resolve this expression in the given scope.  <a href="#ac3eb5b49a7376242434754e82e185112">More...</a><br /></td></tr>
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<tr class="memitem:a460d4ee7e0480e3980390d18833ea97a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classExpression.html#aa416ac50fdbe8bdea9c59f5c78f0c85b">Type</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a460d4ee7e0480e3980390d18833ea97a">getType</a> () const noexcept</td></tr>
<tr class="memdesc:a460d4ee7e0480e3980390d18833ea97a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the type of this expression.  <a href="#a460d4ee7e0480e3980390d18833ea97a">More...</a><br /></td></tr>
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<tr class="memitem:a8a469b3118b5ceaea11dffa68114fcf6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classString.html">String</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a8a469b3118b5ceaea11dffa68114fcf6">getSymbolOrFunction</a> () const</td></tr>
<tr class="memdesc:a8a469b3118b5ceaea11dffa68114fcf6"><td class="mdescLeft">&#160;</td><td class="mdescRight">If this expression is a symbol, function or operator, this returns its identifier.  <a href="#a8a469b3118b5ceaea11dffa68114fcf6">More...</a><br /></td></tr>
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<tr class="memitem:a1c2341066a681a961f76c45c05ab44ef"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a1c2341066a681a961f76c45c05ab44ef">getNumInputs</a> () const</td></tr>
<tr class="memdesc:a1c2341066a681a961f76c45c05ab44ef"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the number of inputs to this expression.  <a href="#a1c2341066a681a961f76c45c05ab44ef">More...</a><br /></td></tr>
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<tr class="memitem:a4bfaabdc763c737a5f18f4be11b2f6ae"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classExpression.html">Expression</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a4bfaabdc763c737a5f18f4be11b2f6ae">getInput</a> (int index) const</td></tr>
<tr class="memdesc:a4bfaabdc763c737a5f18f4be11b2f6ae"><td class="mdescLeft">&#160;</td><td class="mdescRight">Retrieves one of the inputs to this expression.  <a href="#a4bfaabdc763c737a5f18f4be11b2f6ae">More...</a><br /></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a596e6864c20b0d6ac5f42014103e6349"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="classExpression.html">Expression</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a596e6864c20b0d6ac5f42014103e6349">symbol</a> (const <a class="el" href="classString.html">String</a> &amp;symbol)</td></tr>
<tr class="memdesc:a596e6864c20b0d6ac5f42014103e6349"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns an <a class="el" href="classExpression.html" title="A class for dynamically evaluating simple numeric expressions. ">Expression</a> which is an identifier reference.  <a href="#a596e6864c20b0d6ac5f42014103e6349">More...</a><br /></td></tr>
<tr class="separator:a596e6864c20b0d6ac5f42014103e6349"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:afd58f776e343213a4e488db47faadcb2"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="classExpression.html">Expression</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#afd58f776e343213a4e488db47faadcb2">function</a> (const <a class="el" href="classString.html">String</a> &amp;functionName, const <a class="el" href="classArray.html">Array</a>&lt; <a class="el" href="classExpression.html">Expression</a> &gt; &amp;parameters)</td></tr>
<tr class="memdesc:afd58f776e343213a4e488db47faadcb2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns an <a class="el" href="classExpression.html" title="A class for dynamically evaluating simple numeric expressions. ">Expression</a> which is a function call.  <a href="#afd58f776e343213a4e488db47faadcb2">More...</a><br /></td></tr>
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<tr class="memitem:a39b81caf983688a8b3d57444f318a624"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="classExpression.html">Expression</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classExpression.html#a39b81caf983688a8b3d57444f318a624">parse</a> (<a class="el" href="classString.html#a32e28d7fc3a4900c319884191d90dbf0">String::CharPointerType</a> &amp;stringToParse, <a class="el" href="classString.html">String</a> &amp;parseError)</td></tr>
<tr class="memdesc:a39b81caf983688a8b3d57444f318a624"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns an <a class="el" href="classExpression.html" title="A class for dynamically evaluating simple numeric expressions. ">Expression</a> which parses a string from a character pointer, and updates the pointer to indicate where it finished.  <a href="#a39b81caf983688a8b3d57444f318a624">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>A class for dynamically evaluating simple numeric expressions. </p>
<p>This class can parse a simple C-style string expression involving floating point numbers, named symbols and functions. The basic arithmetic operations of +, -, *, / are supported, as well as parentheses, and any alphanumeric identifiers are assumed to be named symbols which will be resolved when the expression is evaluated.</p>
<p>Expressions which use identifiers and functions require a subclass of <a class="el" href="classExpression_1_1Scope.html" title="When evaluating an Expression object, this class is used to resolve symbols and perform functions tha...">Expression::Scope</a> to be supplied when evaluating them, and this object is expected to be able to resolve the symbol names and perform the functions that are used. </p>
</div><h2 class="groupheader">Member Enumeration Documentation</h2>
<a id="aa416ac50fdbe8bdea9c59f5c78f0c85b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aa416ac50fdbe8bdea9c59f5c78f0c85b">&sect;&nbsp;</a></span>Type</h2>

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          <td class="memname">enum <a class="el" href="classExpression.html#aa416ac50fdbe8bdea9c59f5c78f0c85b">Expression::Type</a></td>
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<p><a class="el" href="classExpression.html" title="A class for dynamically evaluating simple numeric expressions. ">Expression</a> type. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classExpression.html#a460d4ee7e0480e3980390d18833ea97a" title="Returns the type of this expression. ">Expression::getType()</a> </dd></dl>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="aa416ac50fdbe8bdea9c59f5c78f0c85ba4c05ef0368ceb383ecdd4933ddb3b5db"></a>constantType&#160;</td><td class="fielddoc"></td></tr>
<tr><td class="fieldname"><a id="aa416ac50fdbe8bdea9c59f5c78f0c85ba4af6ecec6a8598073b3f70f7f1c10eb5"></a>functionType&#160;</td><td class="fielddoc"></td></tr>
<tr><td class="fieldname"><a id="aa416ac50fdbe8bdea9c59f5c78f0c85ba222a2fd6162d6870e34cd9f8e6dc4dc5"></a>operatorType&#160;</td><td class="fielddoc"></td></tr>
<tr><td class="fieldname"><a id="aa416ac50fdbe8bdea9c59f5c78f0c85baef74a77024f2e22f163d3b2346b99162"></a>symbolType&#160;</td><td class="fielddoc"></td></tr>
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</div>
<h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="afcf87716bf0abfe8d414c92529e1564a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#afcf87716bf0abfe8d414c92529e1564a">&sect;&nbsp;</a></span>Expression() <span class="overload">[1/5]</span></h2>

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          <td class="memname">Expression::Expression </td>
          <td>(</td>
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<p>Creates a simple expression with a value of 0. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a3e99570b177da619eeb2c5787cbb148e">&sect;&nbsp;</a></span>~Expression()</h2>

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          <td class="memname">Expression::~Expression </td>
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<p>Destructor. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a568506b67cd65c7f8c2885c9146c98bd">&sect;&nbsp;</a></span>Expression() <span class="overload">[2/5]</span></h2>

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          <td class="memname">Expression::Expression </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="classExpression.html">Expression</a> &amp;&#160;</td>
          <td class="paramname"></td><td>)</td>
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<p>Creates a copy of an expression. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a29b040da8e934faeb1efa47f0beeec77">&sect;&nbsp;</a></span>Expression() <span class="overload">[3/5]</span></h2>

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          <td class="memname">Expression::Expression </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="classExpression.html">Expression</a> &amp;&amp;&#160;</td>
          <td class="paramname"></td><td>)</td>
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<span class="mlabels"><span class="mlabel">noexcept</span></span>  </td>
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<h2 class="memtitle"><span class="permalink"><a href="#a342898044343143057a6a7f1b0db0286">&sect;&nbsp;</a></span>Expression() <span class="overload">[4/5]</span></h2>

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          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>constant</em></td><td>)</td>
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<span class="mlabels"><span class="mlabel">explicit</span></span>  </td>
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<p>Creates a simple expression with a specified constant value. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a2c3dc1d26f9bfd463c3ef228bf7c39c9">&sect;&nbsp;</a></span>Expression() <span class="overload">[5/5]</span></h2>

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          <td class="memname">Expression::Expression </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="classString.html">String</a> &amp;&#160;</td>
          <td class="paramname"><em>stringToParse</em>, </td>
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          <td class="paramkey"></td>
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          <td class="paramtype"><a class="el" href="classString.html">String</a> &amp;&#160;</td>
          <td class="paramname"><em>parseError</em>&#160;</td>
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<p>Attempts to create an expression by parsing a string. </p>
<p>Any errors are returned in the parseError argument provided. </p>

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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#aeec8bdd655b0dc89c8205e67884f091b">&sect;&nbsp;</a></span>operator=() <span class="overload">[1/2]</span></h2>

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          <td class="memname"><a class="el" href="classExpression.html">Expression</a>&amp; Expression::operator= </td>
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          <td class="paramtype">const <a class="el" href="classExpression.html">Expression</a> &amp;&#160;</td>
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<p>Copies another expression. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a680c8e41ee22156ded3e55ad67d67a21">&sect;&nbsp;</a></span>operator=() <span class="overload">[2/2]</span></h2>

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          <td class="memname"><a class="el" href="classExpression.html">Expression</a>&amp; Expression::operator= </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="classExpression.html">Expression</a> &amp;&amp;&#160;</td>
          <td class="paramname"></td><td>)</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a9d896b03617295f713fb733f6fe35ea7">&sect;&nbsp;</a></span>toString()</h2>

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          <td class="memname"><a class="el" href="classString.html">String</a> Expression::toString </td>
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<p>Returns a string version of the expression. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a400bc561a54ddf91853e9595e8436039">&sect;&nbsp;</a></span>operator+()</h2>

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          <td class="memname"><a class="el" href="classExpression.html">Expression</a> Expression::operator+ </td>
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          <td class="paramtype">const <a class="el" href="classExpression.html">Expression</a> &amp;&#160;</td>
          <td class="paramname"></td><td>)</td>
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<p>Returns an expression which is an addition operation of two existing expressions. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a57237dfcc1175da243556232e8a2941e">&sect;&nbsp;</a></span>operator-() <span class="overload">[1/2]</span></h2>

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          <td class="memname"><a class="el" href="classExpression.html">Expression</a> Expression::operator- </td>
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          <td class="paramtype">const <a class="el" href="classExpression.html">Expression</a> &amp;&#160;</td>
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<p>Returns an expression which is a subtraction operation of two existing expressions. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a2539656ac3cde3ac741a4a0dd4fc1740">&sect;&nbsp;</a></span>operator*()</h2>

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          <td class="memname"><a class="el" href="classExpression.html">Expression</a> Expression::operator* </td>
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          <td class="paramtype">const <a class="el" href="classExpression.html">Expression</a> &amp;&#160;</td>
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<p>Returns an expression which is a multiplication operation of two existing expressions. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a47ae14ebdf5c68df219bf7e2587b505e">&sect;&nbsp;</a></span>operator/()</h2>

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          <td class="memname"><a class="el" href="classExpression.html">Expression</a> Expression::operator/ </td>
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          <td class="paramtype">const <a class="el" href="classExpression.html">Expression</a> &amp;&#160;</td>
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<p>Returns an expression which is a division operation of two existing expressions. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a3f565bdfa78531ebf768409722c20a5b">&sect;&nbsp;</a></span>operator-() <span class="overload">[2/2]</span></h2>

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          <td class="memname"><a class="el" href="classExpression.html">Expression</a> Expression::operator- </td>
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<p>Returns an expression which performs a negation operation on an existing expression. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a596e6864c20b0d6ac5f42014103e6349">&sect;&nbsp;</a></span>symbol()</h2>

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          <td class="paramtype">const <a class="el" href="classString.html">String</a> &amp;&#160;</td>
          <td class="paramname"><em>symbol</em></td><td>)</td>
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<p>Returns an <a class="el" href="classExpression.html" title="A class for dynamically evaluating simple numeric expressions. ">Expression</a> which is an identifier reference. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#afd58f776e343213a4e488db47faadcb2">&sect;&nbsp;</a></span>function()</h2>

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          <td class="paramtype">const <a class="el" href="classString.html">String</a> &amp;&#160;</td>
          <td class="paramname"><em>functionName</em>, </td>
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          <td class="paramtype">const <a class="el" href="classArray.html">Array</a>&lt; <a class="el" href="classExpression.html">Expression</a> &gt; &amp;&#160;</td>
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<p>Returns an <a class="el" href="classExpression.html" title="A class for dynamically evaluating simple numeric expressions. ">Expression</a> which is a function call. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a39b81caf983688a8b3d57444f318a624">&sect;&nbsp;</a></span>parse()</h2>

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          <td class="memname">static <a class="el" href="classExpression.html">Expression</a> Expression::parse </td>
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          <td class="paramtype"><a class="el" href="classString.html#a32e28d7fc3a4900c319884191d90dbf0">String::CharPointerType</a> &amp;&#160;</td>
          <td class="paramname"><em>stringToParse</em>, </td>
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<p>Returns an <a class="el" href="classExpression.html" title="A class for dynamically evaluating simple numeric expressions. ">Expression</a> which parses a string from a character pointer, and updates the pointer to indicate where it finished. </p>
<p>The pointer is incremented so that on return, it indicates the character that follows the end of the expression that was parsed.</p>
<p>If there's a syntax error in parsing, the parseError argument will be set to a description of the problem. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ac08d2b72ddf6f12de000f5440b47ee06">&sect;&nbsp;</a></span>evaluate() <span class="overload">[1/3]</span></h2>

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<p>Evaluates this expression, without using a <a class="el" href="classExpression_1_1Scope.html" title="When evaluating an Expression object, this class is used to resolve symbols and perform functions tha...">Scope</a>. </p>
<p>Without a <a class="el" href="classExpression_1_1Scope.html" title="When evaluating an Expression object, this class is used to resolve symbols and perform functions tha...">Scope</a>, no symbols can be used, and only basic functions such as sin, cos, tan, min, max are available. To find out about any errors during evaluation, use the other version of this method which takes a <a class="el" href="classString.html" title="The JUCE String class! ">String</a> parameter. </p>

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          <td class="paramtype">const <a class="el" href="classExpression_1_1Scope.html">Scope</a> &amp;&#160;</td>
          <td class="paramname"><em>scope</em></td><td>)</td>
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<p>Evaluates this expression, providing a scope that should be able to evaluate any symbols or functions that it uses. </p>
<p>To find out about any errors during evaluation, use the other version of this method which takes a <a class="el" href="classString.html" title="The JUCE String class! ">String</a> parameter. </p>

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          <td class="paramtype">const <a class="el" href="classExpression_1_1Scope.html">Scope</a> &amp;&#160;</td>
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<p>Evaluates this expression, providing a scope that should be able to evaluate any symbols or functions that it uses. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ae269dbdef72d7e44d85dd38aa4d7509e">&sect;&nbsp;</a></span>adjustedToGiveNewResult()</h2>

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          <td class="memname"><a class="el" href="classExpression.html">Expression</a> Expression::adjustedToGiveNewResult </td>
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          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>targetValue</em>, </td>
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          <td class="paramname"><em>scope</em>&#160;</td>
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<p>Attempts to return an expression which is a copy of this one, but with a constant adjusted to make the expression resolve to a target value. </p>
<p>E.g. if the expression is "x + 10" and x is 5, then asking for a target value of 8 will return the expression "x + 3". Obviously some expressions can't be reversed in this way, in which case they might just be adjusted by adding a constant to the original expression.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#acec447e85b793db76fbcb46e72bf1cd9">&sect;&nbsp;</a></span>withRenamedSymbol()</h2>

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          <td class="memname"><a class="el" href="classExpression.html">Expression</a> Expression::withRenamedSymbol </td>
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          <td class="paramtype">const <a class="el" href="structExpression_1_1Symbol.html">Symbol</a> &amp;&#160;</td>
          <td class="paramname"><em>oldSymbol</em>, </td>
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<p>Returns a copy of this expression in which all instances of a given symbol have been renamed. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#abb2ba5a8d00fdace61f90be94997e1b7">&sect;&nbsp;</a></span>referencesSymbol()</h2>

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          <td class="memname">bool Expression::referencesSymbol </td>
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<p>Returns true if this expression makes use of the specified symbol. </p>
<p>If a suitable scope is supplied, the search will dereference and recursively check all symbols, so that it can be determined whether this expression relies on the given symbol at any level in its evaluation. If the scope parameter is null, this just checks whether the expression contains any direct references to the symbol.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a81d8a297c5c153159486a4f1acab2b61">&sect;&nbsp;</a></span>usesAnySymbols()</h2>

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<p>Returns true if this expression contains any symbols. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ac3eb5b49a7376242434754e82e185112">&sect;&nbsp;</a></span>findReferencedSymbols()</h2>

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          <td class="paramname"><em>results</em>, </td>
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<p>Returns a list of all symbols that may be needed to resolve this expression in the given scope. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a460d4ee7e0480e3980390d18833ea97a">&sect;&nbsp;</a></span>getType()</h2>

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<p>Returns the type of this expression. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a8a469b3118b5ceaea11dffa68114fcf6">&sect;&nbsp;</a></span>getSymbolOrFunction()</h2>

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          <td class="memname"><a class="el" href="classString.html">String</a> Expression::getSymbolOrFunction </td>
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<p>If this expression is a symbol, function or operator, this returns its identifier. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a1c2341066a681a961f76c45c05ab44ef">&sect;&nbsp;</a></span>getNumInputs()</h2>

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<p>Returns the number of inputs to this expression. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classExpression.html#a4bfaabdc763c737a5f18f4be11b2f6ae" title="Retrieves one of the inputs to this expression. ">getInput</a> </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a4bfaabdc763c737a5f18f4be11b2f6ae">&sect;&nbsp;</a></span>getInput()</h2>

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          <td class="memname"><a class="el" href="classExpression.html">Expression</a> Expression::getInput </td>
          <td>(</td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>index</em></td><td>)</td>
          <td> const</td>
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<p>Retrieves one of the inputs to this expression. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classExpression.html#a1c2341066a681a961f76c45c05ab44ef" title="Returns the number of inputs to this expression. ">getNumInputs</a> </dd></dl>

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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="juce__Expression_8h.html">juce_Expression.h</a></li>
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