__isinff

Name

__isinff -- test for infinity

Synopsis

int __isinff(float arg);

Description

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

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