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C in a Nutshell
book

C in a Nutshell

by Peter Prinz, Tony Crawford
December 2005
Beginner to intermediate
618 pages
20h 19m
English
O'Reilly Media, Inc.
Content preview from C in a Nutshell

Name

fetestexcept

Synopsis

Tests the status flags in the floating-point environment against a bit mask

#include <fenv.h>
intfetestexcept( int excepts );

The fetestexcept() function takes as its argument a bitwise OR of the values of macros defined in fenv.h to represent the floating-point exception flags. The macros are listed under feraiseexcept() in this chapter.

fetestexcept() returns the bitwise AND of the values representing the exception flags that were set in the argument and the exception flags that are currently set in the floating-point environment.

Example

See the examples at feclearexcept() and feholdexcept() in this chapter.

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Publisher Resources

ISBN: 0596006977Errata Page