/usr/include/glm/gtc/integer.inl is in libglm-dev 0.9.9~a2-2.
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 | /// @ref gtc_integer
/// @file glm/gtc/integer.inl
namespace glm{
namespace detail
{
template<length_t L, typename T, qualifier Q, bool Aligned>
struct compute_log2<L, T, Q, false, Aligned>
{
GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& v)
{
//Equivalent to return findMSB(vec); but save one function call in ASM with VC
//return findMSB(vec);
return vec<L, T, Q>(detail::compute_findMSB_vec<L, T, Q, sizeof(T) * 8>::call(v));
}
};
# if GLM_HAS_BITSCAN_WINDOWS
template<qualifier Q, bool Aligned>
struct compute_log2<4, int, Q, false, Aligned>
{
GLM_FUNC_QUALIFIER static vec<4, int, Q> call(vec<4, int, Q> const& v)
{
vec<4, int, Q> Result;
_BitScanReverse(reinterpret_cast<unsigned long*>(&Result.x), v.x);
_BitScanReverse(reinterpret_cast<unsigned long*>(&Result.y), v.y);
_BitScanReverse(reinterpret_cast<unsigned long*>(&Result.z), v.z);
_BitScanReverse(reinterpret_cast<unsigned long*>(&Result.w), v.w);
return Result;
}
};
# endif//GLM_HAS_BITSCAN_WINDOWS
}//namespace detail
template<typename genType>
GLM_FUNC_QUALIFIER int iround(genType x)
{
GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'iround' only accept floating-point inputs");
assert(static_cast<genType>(0.0) <= x);
return static_cast<int>(x + static_cast<genType>(0.5));
}
template<length_t L, typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<L, int, Q> iround(vec<L, T, Q> const& x)
{
GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'iround' only accept floating-point inputs");
assert(all(lessThanEqual(vec<L, T, Q>(0), x)));
return vec<L, int, Q>(x + static_cast<T>(0.5));
}
template<typename genType>
GLM_FUNC_QUALIFIER uint uround(genType x)
{
GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'uround' only accept floating-point inputs");
assert(static_cast<genType>(0.0) <= x);
return static_cast<uint>(x + static_cast<genType>(0.5));
}
template<length_t L, typename T, qualifier Q>
GLM_FUNC_QUALIFIER vec<L, uint, Q> uround(vec<L, T, Q> const& x)
{
GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'uround' only accept floating-point inputs");
assert(all(lessThanEqual(vec<L, T, Q>(0), x)));
return vec<L, uint, Q>(x + static_cast<T>(0.5));
}
}//namespace glm
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