Description:
isnan macro: test for NaN value.

Files:
m4/isnan.m4

Depends-on:
isnanf
isnand
isnanl
math
extensions

configure.ac:
gl_ISNAN
gl_MATH_MODULE_INDICATOR([isnan])

Makefile.am:

Include:
<math.h>

License:
LGPL

Maintainer:
Ben Pfaff