From: "H.Yamamoto" <ocean@...2.ccsnet.ne.jp>
Date: 2006-02-01T23:07:15+09:00
Subject: Re: [PATCH]  solaris 10  isinf and ruby_setenv fixes

Hello.

>This patch works correctly for me. However there is still the isinf trouble
>(e.g. configure cannot find isinf on solaris 10)

Well, should I commit your patch [ruby-core:7273],
or define isinf/isnan in [ruby-core:7151] somewhere?

| #include <math.h>
| 
| #ifndef isnan
| # define isnan(x) \
|     (sizeof (x) == sizeof (long double) ? isnan_ld (x) \
|      : sizeof (x) == sizeof (double) ? isnan_d (x) \
|      : isnan_f (x))
| static inline int isnan_f  (float       x) @{ return x != x; @}
| static inline int isnan_d  (double      x) @{ return x != x; @}
| static inline int isnan_ld (long double x) @{ return x != x; @}
| #endif
| 
| #ifndef isinf
| # define isinf(x) \
|     (sizeof (x) == sizeof (long double) ? isinf_ld (x) \
|      : sizeof (x) == sizeof (double) ? isinf_d (x) \
|      : isinf_f (x))
| static inline int isinf_f  (float       x) @{ return isnan (x - x); @}
| static inline int isinf_d  (double      x) @{ return isnan (x - x); @}
| static inline int isinf_ld (long double x) @{ return isnan (x - x); @}
| #endif