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add isNaN

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This commit is contained in:
rsc 2004-12-27 00:11:13 +00:00
parent e686c2b35e
commit cdccf023aa
1 changed files with 4 additions and 3 deletions
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7
src/lib9/fmt/fltfmt.c
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@ -18,6 +18,7 @@
#include <stdlib.h>
#include <errno.h>
#include <stdarg.h>
#include <ctype.h>
#include <fmt.h>
#include "plan9.h"
#include "fmt.h"
@ -142,15 +143,15 @@ xdtoa(Fmt *fmt, char *s2, double f)
prec = fmt->prec;
if(prec > FDIGIT)
prec = FDIGIT;
if(isNaN(f)) {
if(__isNaN(f)) {
strcpy(s2, "NaN");
return;
}
if(isInf(f, 1)) {
if(__isInf(f, 1)) {
strcpy(s2, "+Inf");
return;
}
if(isInf(f, -1)) {
if(__isInf(f, -1)) {
strcpy(s2, "-Inf");
return;
}