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/*
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2008-2008 - INRIA - Bruno JOFRET
*
* This file must be used under the terms of the CeCILL.
* This source file is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at
* http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
*
*/
/*
** FIXME : Add some array tests !
*/
#include "testSign.h"
int ssignsTest() {
float positive = 0.123f;
float negative = -0.123f;
float zero = 0.0f;
printf(">> Float \n");
assert(ssigns(positive) == 1);
assert(ssigns(negative) == -1);
assert(ssigns(zero) == 0);
return 0;
}
int dsignsTest() {
double positive = 0.123;
double negative = -0.123;
double zero = 0;
printf(">> Double\n");
assert(dsigns(positive) == 1);
assert(dsigns(negative) == -1);
assert(dsigns(zero) == 0);
return 0;
}
int csignsTest() {
floatComplex zero = FloatComplex(0., 0.);
floatComplex i = FloatComplex(0., 1.);
floatComplex oneAndI = FloatComplex(1., 1.);
floatComplex sign_i = csigns(i);
floatComplex sign_oneAndI = csigns(oneAndI);
floatComplex sign_zero = csigns(zero);
printf(">> Float Complex\n");
/* sign(%i) = %i */
assert(creals(sign_i) == 0);
assert(cimags(sign_i) == 1);
/* sign(1+%i) = (1+%i) / sqrt(2) */
assert(creals(sign_oneAndI) == 1 / sqrtf(2));
assert(cimags(sign_oneAndI) == 1 / sqrtf(2));
/* sign(0) = 0 */
assert(creals(sign_zero) == 0);
assert(cimags(sign_zero) == 0);
return 0;
}
int zsignsTest() {
floatComplex zero = FloatComplex(0., 0.);
doubleComplex i = DoubleComplex(0., 1.);
doubleComplex oneAndI = DoubleComplex(1., 1.);
doubleComplex sign_i = zsigns(i);
doubleComplex sign_oneAndI = zsigns(oneAndI);
floatComplex sign_zero = csigns(zero);
printf(">> Double Complex\n");
/* sign(%i) = %i */
assert(zreals(sign_i) == 0);
assert(zimags(sign_i) == 1);
/* sign(1+%i) = (1+%i) / sqrt(2) */
assert ( fabs ( zreals(sign_oneAndI) - (sqrt(2.)/2.) ) / fabs( zreals(sign_oneAndI)) < 1e-15) ;
assert ( fabs ( zimags(sign_oneAndI) - 1 / sqrt(2.) ) / fabs( zimags(sign_oneAndI)) < 1e-15) ;
/* sign(0) = 0 */
assert(creals(sign_zero) == 0);
assert(cimags(sign_zero) == 0);
return 0;
}
int testSign() {
int ssignsTestStatus, dsignsTestStatus = 0;
int csignsTestStatus, zsignsTestStatus = 0;
printf("\n>>>> Sign Tests\n");
ssignsTestStatus = ssignsTest();
dsignsTestStatus = dsignsTest();
csignsTestStatus = csignsTest();
zsignsTestStatus = zsignsTest();
return (ssignsTestStatus + dsignsTestStatus +
csignsTestStatus + zsignsTestStatus);
}
int main(void) {
assert(testSign() == 0);
return 0;
}
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