lapacke_nancheck.c

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* Contents: Native C interface to control NaN checking
* Author: Intel Corporation
* Generated July, 2017
*****************************************************************************/
 
#include "lapacke_utils.h"
 
static int nancheck_flag = -1;
 
void LAPACKE_set_nancheck( int flag )
{
    nancheck_flag = ( flag ) ? 1 : 0;
}
 
int LAPACKE_get_nancheck( )
{
    char* env;
    if ( nancheck_flag != -1 ) {
        return nancheck_flag;
    }
 
    /* Check environment variable, once and only once */
    env = getenv( "LAPACKE_NANCHECK" );
    if ( !env ) {
        /* By default, NaN checking is enabled */
        nancheck_flag = 1;
    } else {
        nancheck_flag = atoi( env ) ? 1 : 0;
    }
 
    return nancheck_flag;
}