isnanf(3)
- NetBSD Manual Pages
ISINFF(3) NetBSD Library Functions Manual ISINFF(3)
NAME
isinff, isnanf -- test for infinity or not-a-number
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h>
int
isinff(float);
int
isnanf(float);
DESCRIPTION
The isinff() function returns 1 if the number is ``infinity'', otherwise
0.
The isnanf() function returns 1 if the number is ``not-a-number'', other-
wise 0.
SEE ALSO
isinf(3), isnan(3), math(3)
IEEE Standard for Binary Floating-Point Arithmetic, Std 754-1985, ANSI.
BUGS
Neither the VAX nor the Tahoe floating point have distinguished values
for either infinity or not-a-number. These routines always return 0 on
those architectures.
NetBSD 9.0 August 16, 1999 NetBSD 9.0
Powered by man-cgi (2024-08-24).
Maintained for NetBSD
by Kimmo Suominen.
Based on man-cgi by Panagiotis Christias.