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ruby--ruby/missing/isnan.c
ocean 9c60701e4f * missing.h, missing/*.c: SUSv3 compatible strcasecmp and strncasecmp,
ANSI compatible strtol and strtoul, and ANSI styled other functions.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@9438 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2005-10-22 01:28:00 +00:00

15 lines
207 B
C

/* public domain rewrite of isnan(3) */
static int double_ne(double n1, double n2);
int
isnan(double n)
{
return double_ne(n, n);
}
static int
double_ne(double n1, double n2)
{
return n1 != n2;
}