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_set_errno

Set the value of the errno global variable.

errno_t _set_errno( 
   int value 
);
[in] value

The new value of errno.

Returns zero if successful.

Possible values are defined in Errno.h. Also, see errno Constants.

// crt_set_errno.c
#include <stdio.h>
#include <errno.h>

int main()
{
   _set_errno( EILSEQ );
   perror( "Oops" );
}
Oops: Illegal byte sequence

Routine

Required header

Optional header

_set_errno

<stdlib.h>

<errno.h>

For more compatibility information, see Compatibility in the Introduction.

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