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test more values, add sin2+cos2=1 check 

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12724 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Andrew Bachmann 2005-05-18 21:12:16 +00:00
parent bcd8a1fad9
commit 00b424f83a
1 changed files with 31 additions and 12 deletions
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43
src/tests/kernel/libroot/posix/math/math_test.cpp
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@ -41,12 +41,29 @@ main(int argc, char **argv)
status_t result = B_OK;
// test cos2 + sin2 = 1
fprintf(stdout, "value\tsin2()+cos2()\n");
for (int i = -63 ; i <= 63 ; i++) {
double f = (double)i/7.0;
double x = sin(f);
double y = cos(f);
if (fabs(x*x + y*y - 1.0) > 0.000001) {
fprintf(stdout, "%0.3f\t%0.10f", f, x*x + y*y);
fprintf(stdout, " **");
fprintf(stdout, "\n");
result = B_ERROR;
}
}
fprintf(stdout, "\n");
// test sin
fprintf(stdout, "value\tsin(value)\tbe_sin(value)\n");
for (int i = -9 ; i <= 9 ; i++) {
double f = (double)i;
fprintf(stdout, "%0.1f\t%0.10f\t%0.10f", f, sin(f), be_sin(f));
if (sin(f) != be_sin(f)) {
for (int i = -63 ; i <= 63 ; i++) {
double f = (double)i/7.0;
double x = sin(f);
double y = be_sin(f);
fprintf(stdout, "%0.3f\t%0.10f\t%0.10f", f, x, y);
if (fabs(x - y) > 0.000001) {
fprintf(stdout, " **");
result = B_ERROR;
}
@ -56,10 +73,12 @@ main(int argc, char **argv)
fprintf(stdout, "value\tcos(value)\tbe_cos(value)\n");
// test cos
for (int i = -9 ; i <= 9 ; i++) {
double f = (double)i;
fprintf(stdout, "%0.1f\t%0.10f\t%0.10f", f, cos(f), be_cos(f));
if (cos(f) != be_cos(f)) {
for (int i = -63 ; i <= 63 ; i++) {
double f = (double)i/7.0;
double x = cos(f);
double y = be_cos(f);
fprintf(stdout, "%0.3f\t%0.10f\t%0.10f", f, x, y);
if (fabs(x - y) > 0.000001) {
fprintf(stdout, " **");
result = B_ERROR;
}
@ -69,10 +88,10 @@ main(int argc, char **argv)
fprintf(stdout, "arg1\targ2\tcopysign()\tbe_copysign()\n");
// test copysign
for (int i = -9 ; i <= 9 ; i++) {
for (int j = -9 ; j <= 9 ; j++) {
double f = (double)i;
double g = (double)j;
for (int i = -21 ; i <= 21 ; i++) {
for (int j = -36 ; j <= 36 ; j++) {
double f = (double)i/3.0;
double g = (double)j/4.0;
double x = copysign(f, g);
double y = be_copysign(f, g);
if ((x != y) && !(isnan(x) && isnan(y))) {