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OpenLibm/src/e_lgammal.c

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Add lgammal_r(). We already provide lgammaf_r() and lgamma_r(). It's not hard to also add lgammal_r(), for consistency. I am currently working on porting openlibm to an environment where global state, and thus signgam, is not available. By adding lgammal_r(), I can trivially disable support for signgam by just patching up src/e_lgamma{f,,l}.c. That way there is no need to patch up the actual algorithms.
2015-01-08 11:23:28 +01:00
#include "cdefs-compat.h"
Use more uniform style of including headers. Put external headers before internal ones. While there, replace a lot of occurences of "openlibm.h" with <openlibm.h>. It should be thought of as an external header, as it is installed along with the library.
2015-01-09 14:24:24 +01:00
#include <openlibm.h>
Add lgammal_r(). We already provide lgammaf_r() and lgamma_r(). It's not hard to also add lgammal_r(), for consistency. I am currently working on porting openlibm to an environment where global state, and thus signgam, is not available. By adding lgammal_r(), I can trivially disable support for signgam by just patching up src/e_lgamma{f,,l}.c. That way there is no need to patch up the actual algorithms.
2015-01-08 11:23:28 +01:00
#include "math_private.h"
extern int signgam;
DLLEXPORT long double
lgammal(long double x)
{
return (lgammal_r(x, &signgam));
}