diff options
| author |  Eugene Zhulenev <eugene.zhulenev@gmail.com> | 2020-10-08 00:26:45 +0000 |
|---|---|---|
| committer |  Rasmus Munk Larsen <rmlarsen@google.com> | 2020-10-08 00:26:45 +0000 |
| commit | 2279f2c62f1e5c0dfaa500e637c92d528acd85b1 (patch) | |
| tree | 353f970fef7ddd95af9153a344c9586d68c96775 /unsupported | |
| parent | b43102440489df9d0175c88e602dfa425b574a94 (diff) | |
Use lgamma_r if it is available (update check for glibc 2.19+)
Diffstat (limited to 'unsupported')
| -rw-r--r-- | unsupported/Eigen/src/SpecialFunctions/SpecialFunctionsImpl.h | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/unsupported/Eigen/src/SpecialFunctions/SpecialFunctionsImpl.h b/unsupported/Eigen/src/SpecialFunctions/SpecialFunctionsImpl.h index 0044b8a27..c65f69a54 100644 --- a/unsupported/Eigen/src/SpecialFunctions/SpecialFunctionsImpl.h +++ b/unsupported/Eigen/src/SpecialFunctions/SpecialFunctionsImpl.h @@ -57,11 +57,23 @@ struct lgamma_retval { }; #if EIGEN_HAS_C99_MATH +// Since glibc 2.19 +#if defined(__GLIBC__) && ((__GLIBC__>=2 && __GLIBC_MINOR__ >= 19) || __GLIBC__>2) \ + && (defined(_DEFAULT_SOURCE) || defined(_BSD_SOURCE) || defined(_SVID_SOURCE)) +#define HAS_LGAMMA_R +#endif + +// Glibc versions before 2.19 +#if defined(__GLIBC__) && ((__GLIBC__==2 && __GLIBC_MINOR__ < 19) || __GLIBC__<2) \ + && (defined(_BSD_SOURCE) || defined(_SVID_SOURCE)) +#define HAS_LGAMMA_R +#endif + template <> struct lgamma_impl<float> { EIGEN_DEVICE_FUNC static EIGEN_STRONG_INLINE float run(float x) { -#if !defined(EIGEN_GPU_COMPILE_PHASE) && (defined(_BSD_SOURCE) || defined(_SVID_SOURCE)) && !defined(__APPLE__) +#if !defined(EIGEN_GPU_COMPILE_PHASE) && defined (HAS_LGAMMA_R) && !defined(__APPLE__) int dummy; return ::lgammaf_r(x, &dummy); #elif defined(SYCL_DEVICE_ONLY) @@ -76,7 +88,7 @@ template <> struct lgamma_impl<double> { EIGEN_DEVICE_FUNC static EIGEN_STRONG_INLINE double run(double x) { -#if !defined(EIGEN_GPU_COMPILE_PHASE) && (defined(_BSD_SOURCE) || defined(_SVID_SOURCE)) && !defined(__APPLE__) +#if !defined(EIGEN_GPU_COMPILE_PHASE) && defined(HAS_LGAMMA_R) && !defined(__APPLE__) int dummy; return ::lgamma_r(x, &dummy); #elif defined(SYCL_DEVICE_ONLY) @@ -86,6 +98,8 @@ struct lgamma_impl<double> { #endif } }; + +#undef HAS_LGAMMA_R #endif /**************************************************************************** |