From d986500059e8cacbe179a883d114b29787ca6628 Mon Sep 17 00:00:00 2001 From: nobu Date: Thu, 14 Apr 2011 12:21:09 +0000 Subject: [PATCH] * include/ruby/win32.h (frexp, modf): wrongly declared as pure in mingw math.h. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31278 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ChangeLog | 5 ++++- include/ruby/win32.h | 14 ++++++++++++++ 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/ChangeLog b/ChangeLog index d22d422a6c..898a62131d 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,4 +1,7 @@ -Thu Apr 14 21:21:01 2011 Nobuyoshi Nakada +Thu Apr 14 21:21:06 2011 Nobuyoshi Nakada + + * include/ruby/win32.h (frexp, modf): wrongly declared as pure in + mingw math.h. * include/ruby/win32.h (ftruncate, truncate): mingw64 misses prototypes. diff --git a/include/ruby/win32.h b/include/ruby/win32.h index cafd7de85f..22c35e6a95 100644 --- a/include/ruby/win32.h +++ b/include/ruby/win32.h @@ -692,6 +692,20 @@ uintptr_t rb_w32_asynchronize(asynchronous_func_t func, uintptr_t self, int argc #pragma GCC visibility pop #endif +#ifdef __MINGW_ATTRIB_PURE +/* get rid of bugs in math.h of mingw */ +#define frexp(_X, _Y) __extension__ ({\ + int *intptr_frexp_bug = (_Y);\ + *intptr_frexp_bug = *intptr_frexp_bug;\ + frexp((_X), intptr_frexp_bug);\ +}) +#define modf(_X, _Y) __extension__ ({\ + double *intptr_modf_bug = (_Y);\ + *intptr_modf_bug = *intptr_modf_bug;\ + modf((_X), intptr_modf_bug);\ +}) +#endif + #if defined(__cplusplus) #if 0 { /* satisfy cc-mode */