__isnanf

Name

__isnanf -- test for infinity

Synopsis

int __isnanf(float arg);

Description

__isnanf() has the same specification as isnan() in POSIX 1003.1-2008 (ISO/IEC 9945-2009), except that the argument type for __isnanf() is known to be float.

__isnanf() is not in the source standard; it is only in the binary standard.