feclearexcept

Name

feclearexcept, fegetexceptflag, feraiseexcept, fesetexceptflag, fetestexcept
- C99 floating point rounding and exception handling

Library

libm.lib

Synopsis

#include <fenv.h>

int feclearexcept (int excepts);

int fegetexceptflag (fexcept_t *flagp, int excepts);

int feraiseexcept (int excepts);

int fesetexceptflag (const fexcept_t *flagp, int excepts);

int fetestexcept (int excepts);

Return values

These functions don’t serve any purpose, as long as there is no math co-processor in the phones.

If there is a hardware FPU, the above function will works as follows:

the feclearexcept, fegetexceptflag, feraiseexcept, and fesetexceptflag functions return 0 upon success, and non-zero otherwise. The fetestexcept function returns the bitwise OR of the values of the current exception flags that were requested.

Detailed description

These functios are expanded as blank definitions as there is no hardware floating point phones in Series 60 phones.

If there is a hardware floating point unit, These functions will be expanded as ARM inline assembly codes. This is controlled by flag ARM_HARD_FLOAT.

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