/usr/include/wcslib-5.18/wcsutil.h is in wcslib-dev 5.18-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 | /*============================================================================
WCSLIB 5.18 - an implementation of the FITS WCS standard.
Copyright (C) 1995-2018, Mark Calabretta
This file is part of WCSLIB.
WCSLIB is free software: you can redistribute it and/or modify it under the
terms of the GNU Lesser General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
WCSLIB is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
more details.
You should have received a copy of the GNU Lesser General Public License
along with WCSLIB. If not, see http://www.gnu.org/licenses.
Direct correspondence concerning WCSLIB to mark@calabretta.id.au
Author: Mark Calabretta, Australia Telescope National Facility, CSIRO.
http://www.atnf.csiro.au/people/Mark.Calabretta
$Id: wcsutil.h,v 5.18 2018/01/10 08:32:14 mcalabre Exp $
*=============================================================================
*
* WCSLIB 5.18 - C routines that implement the FITS World Coordinate System
* (WCS) standard. Refer to the README file provided with WCSLIB for an
* overview of the library.
*
*
* Summary of the wcsutil routines
* -------------------------------
* Simple utility functions for internal use only by WCSLIB. They are
* documented here solely as an aid to understanding the code. They are not
* intended for external use - the API may change without notice!
*
*
* wcsutil_blank_fill() - Fill a character string with blanks
* ----------------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_blank_fill() pads a character string with blanks starting with the
* terminating NULL character.
*
* Used by the Fortran wrapper functions in translating C character strings
* into Fortran CHARACTER variables.
*
* Given:
* n int Length of the character array, c[].
*
* Given and returned:
* c char[] The character string. It will not be null-terminated
* on return.
*
* Function return value:
* void
*
*
* wcsutil_null_fill() - Fill a character string with NULLs
* --------------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_null_fill() strips off trailing blanks and pads the character array
* holding the string with NULL characters.
*
* Used mainly to make character strings intelligible in the GNU debugger which
* prints the rubbish following the terminating NULL, obscuring the valid part
* of the string.
*
* Given:
* n int Number of characters.
*
* Given and returned:
* c char[] The character string.
*
* Function return value:
* void
*
*
* wcsutil_allEq() - Test for equality of a particular vector element
* ------------------------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_allEq() tests for equality of a particular element in a set of
* vectors.
*
* Given:
* nvec int The number of vectors.
*
* nelem int The length of each vector.
*
* first const double*
* Pointer to the first element to test in the array.
* The elements tested for equality are
*
= *first == *(first + nelem)
= == *(first + nelem*2)
= :
= == *(first + nelem*(nvec-1));
*
* The array might be dimensioned as
*
= double v[nvec][nelem];
*
* Function return value:
* int Status return value:
* 0: Not all equal.
* 1: All equal.
*
*
* wcsutil_Eq() - Test for equality of two double arrays
* -----------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_Eq() tests for equality of two double-precision arrays.
*
* Given:
* nelem int The number of elements in each array.
*
* tol double Tolerance for comparison of the floating-point values.
* For example, for tol == 1e-6, all floating-point
* values in the arrays must be equal to the first 6
* decimal places. A value of 0 implies exact equality.
*
* arr1 const double*
* The first array.
*
* arr2 const double*
* The second array
*
* Function return value:
* int Status return value:
* 0: Not equal.
* 1: Equal.
*
*
* wcsutil_intEq() - Test for equality of two int arrays
* -----------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_intEq() tests for equality of two int arrays.
*
* Given:
* nelem int The number of elements in each array.
*
* arr1 const int*
* The first array.
*
* arr2 const int*
* The second array
*
* Function return value:
* int Status return value:
* 0: Not equal.
* 1: Equal.
*
*
* wcsutil_strEq() - Test for equality of two string arrays
* --------------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_strEq() tests for equality of two string arrays.
*
* Given:
* nelem int The number of elements in each array.
*
* arr1 const char**
* The first array.
*
* arr2 const char**
* The second array
*
* Function return value:
* int Status return value:
* 0: Not equal.
* 1: Equal.
*
*
* wcsutil_setAll() - Set a particular vector element
* --------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_setAll() sets the value of a particular element in a set of vectors.
*
* Given:
* nvec int The number of vectors.
*
* nelem int The length of each vector.
*
* Given and returned:
* first double* Pointer to the first element in the array, the value
* of which is used to set the others
*
= *(first + nelem) = *first;
= *(first + nelem*2) = *first;
= :
= *(first + nelem*(nvec-1)) = *first;
*
* The array might be dimensioned as
*
= double v[nvec][nelem];
*
* Function return value:
* void
*
*
* wcsutil_setAli() - Set a particular vector element
* --------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_setAli() sets the value of a particular element in a set of vectors.
*
* Given:
* nvec int The number of vectors.
*
* nelem int The length of each vector.
*
* Given and returned:
* first int* Pointer to the first element in the array, the value
* of which is used to set the others
*
= *(first + nelem) = *first;
= *(first + nelem*2) = *first;
= :
= *(first + nelem*(nvec-1)) = *first;
*
* The array might be dimensioned as
*
= int v[nvec][nelem];
*
* Function return value:
* void
*
*
* wcsutil_setBit() - Set bits in selected elements of an array
* ------------------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_setBit() sets bits in selected elements of an array.
*
* Given:
* nelem int Number of elements in the array.
*
* sel const int*
* Address of a selection array of length nelem. May
* be specified as the null pointer in which case all
* elements are selected.
*
* bits int Bit mask.
*
* Given and returned:
* array int* Address of the array of length nelem.
*
* Function return value:
* void
*
*
* wcsutil_fptr2str() - Translate pointer-to-function to string
* ------------------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_fptr2str() translates a pointer-to-function to hexadecimal string
* representation for output. It is used by the various routines that print
* the contents of WCSLIB structs, noting that it is not strictly legal to
* type-pun a function pointer to void*. See
* http://stackoverflow.com/questions/2741683/how-to-format-a-function-pointer
*
* Given:
* fptr int(*)() Pointer to function.
*
* Returned:
* hext char[19] Null-terminated string. Should be at least 19 bytes
* in size to accomodate a 64-bit address (16 bytes in
* hex), plus the leading "0x" and trailing '\0'.
*
* Function return value:
* char * The address of hext.
*
*
* wcsutil_double2str() - Translate double to string ignoring the locale
* ---------------------------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_double2str() converts a double to a string, but unlike sprintf() it
* ignores the locale and always uses a '.' as the decimal separator. Also,
* unless it includes an exponent, the formatted value will always have a
* fractional part, ".0" being appended if necessary.
*
* Returned:
* buf char * The buffer to write the string into.
*
* Given:
* format char * The formatting directive, such as "%f". This
* may be any of the forms accepted by sprintf(), but
* should only include a formatting directive and
* nothing else. For "%g" and "%G" formats, unless it
* includes an exponent, the formatted value will always
* have a fractional part, ".0" being appended if
* necessary.
*
* value double The value to convert to a string.
*
*
* wcsutil_str2double() - Translate string to a double, ignoring the locale
* ------------------------------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_str2double() converts a string to a double, but unlike sscanf() it
* ignores the locale and always expects a '.' as the decimal separator.
*
* Given:
* buf char * The string containing the value
*
* Returned:
* value double * The double value parsed from the string.
*
*
* wcsutil_dpkey_int() - Get the data value in a dpkey struct as int
* -----------------------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_dpkey_int() returns the data value in a dpkey struct as an integer
* value.
*
* Given and returned:
* dp const struct dpkey *
* Parsed contents of a DPja or DQia keyrecord.
*
* Function return value:
* int The record's value as int.
*
*
* wcsutil_dpkey_double() - Get the data value in a dpkey struct as double
* -----------------------------------------------------------------------
* INTERNAL USE ONLY.
*
* wcsutil_dpkey_double() returns the data value in a dpkey struct as a
* floating point value.
*
* Given and returned:
* dp const struct dpkey *
* Parsed contents of a DPja or DQia keyrecord.
*
* Function return value:
* double The record's value as double.
*
*===========================================================================*/
#ifndef WCSLIB_WCSUTIL
#define WCSLIB_WCSUTIL
#include "dis.h"
#ifdef __cplusplus
extern "C" {
#endif
void wcsutil_blank_fill(int n, char c[]);
void wcsutil_null_fill (int n, char c[]);
int wcsutil_allEq (int nvec, int nelem, const double *first);
int wcsutil_Eq(int nelem, double tol, const double *arr1,
const double *arr2);
int wcsutil_intEq(int nelem, const int *arr1, const int *arr2);
int wcsutil_strEq(int nelem, char (*arr1)[72], char (*arr2)[72]);
void wcsutil_setAll(int nvec, int nelem, double *first);
void wcsutil_setAli(int nvec, int nelem, int *first);
void wcsutil_setBit(int nelem, const int *sel, int bits, int *array);
char *wcsutil_fptr2str(int (*func)(void), char hext[19]);
int wcsutil_str2double(const char *buf, double *value);
void wcsutil_double2str(char *buf, const char *format, double value);
int wcsutil_dpkey_int(const struct dpkey *dp);
double wcsutil_dpkey_double(const struct dpkey *dp);
#ifdef __cplusplus
}
#endif
#endif /* WCSLIB_WCSUTIL */
|