Linux 2.6 - man page for isinf (linux section 3posix)
|Linux & Unix Commands - Search Man Pages
ISINF(P) POSIX Programmer's Manual ISINF(P)
isinf - test for infinity
int isinf(real-floating x);
The isinf() macro shall determine whether its argument value is an infinity (positive or
negative). First, an argument represented in a format wider than its semantic type is con-
verted to its semantic type. Then determination is based on the type of the argument.
The isinf() macro shall return a non-zero value if and only if its argument has an infi-
No errors are defined.
The following sections are informative.
fpclassify() , isfinite() , isnan() , isnormal() , signbit() , the Base Definitions volume
of IEEE Std 1003.1-2001 <math.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE Std
1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System
Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by
the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and The Open Group
Standard, the original IEEE and The Open Group Standard is the referee document. The orig-
inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 ISINF(P)
All times are GMT -4. The time now is 10:12 AM.