_status87

Gets floating-point status.

Defined in header <float.h>

Syntax

#include <float.h>
unsigned  int _status87(void);

_status87  gets the floating-point status word, which is a combination of
the 80x87 status word and  other conditions detected by the 80x87
exception handler.

Portability

Return value

The bits in the return value give the floating-point status. See float.h for a complete definition of the bits returned by _status87.

Example

#include <stdio.h>
#include <float.h>
int -main(void)
{
   float x;
   double y = 1.5e-100;
   printf("Status 87 before  error: %x\n", _status87());
   X = y;                  /* force an error to occur */
   y = x;
   printf("Status 87 after error  : %x\n", _status87());
   return 0;

Differences from modern implementations

Nothing recorded yet.

Modern references

• Microsoft C runtime (search)

These are search links, not yet checked by hand.

Extraction notes

• heading `status87` read as `_status87`

Stable link: /3.1/float.h/_status87/ · short form /3.1/_status87/