__isinfl

Name

__isinfl -- test for infinity

Synopsis

int __isinfl(long double arg);

Description

__isinfl() has the same specification as isinf() in the POSIX 1003.1-2001 (ISO/IEC 9945-2003), except that the argument type for __isinfl() is known to be long double.

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