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* win32/win32.c (signbig): defined.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26799 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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nobu 2010-03-02 21:19:33 +00:00
parent d20440ab6f
commit 35345f1c09
3 changed files with 15 additions and 1 deletions
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4
ChangeLog
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@ -1,4 +1,6 @@
Wed Mar 3 05:48:54 2010 Nobuyoshi Nakada <nobu@ruby-lang.org> Wed Mar 3 06:19:25 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
* win32/win32.c (signbig): defined.
* win32/Makefile.sub, symbian/setup (config.h): pack.c requires * win32/Makefile.sub, symbian/setup (config.h): pack.c requires
SIZEOF_INT*_T now. SIZEOF_INT*_T now.

1
win32/Makefile.sub
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@ -552,6 +552,7 @@ $(CONFIG_H): $(MKFILES) $(srcdir)/win32/Makefile.sub $(win_srcdir)/Makefile.sub
#define HAVE_COSH 1 #define HAVE_COSH 1
#define HAVE_SINH 1 #define HAVE_SINH 1
#define HAVE_TANH 1 #define HAVE_TANH 1
#define HAVE_SIGNBIT 1
#define HAVE_TZNAME 1 #define HAVE_TZNAME 1
#define HAVE_DAYLIGHT 1 #define HAVE_DAYLIGHT 1
#define SETPGRP_VOID 1 #define SETPGRP_VOID 1

11
win32/win32.c
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@ -5272,3 +5272,14 @@ _ftol2_sse(double d)
return _ftol(d); return _ftol(d);
} }
#endif #endif
int
signbit(double x)
{
#ifdef _M_IX86
int *ip = (int *)(&x + 1) - 1;
return *ip < 0;
#else
# error not supported
#endif
}