ORCA-C/Tests/Conformance/C19.9.0.1.CC

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/* Conformance Test 19.9.0.1: Verification of acos, asin, atan, atan2 library */
/* functions */
#include <math.h>
main ()
{
double d1;
d1 = acos (0.5);
if (fabs(d1 - 1.047197551) > 0.00001)
goto Fail;
d1 = asin (0.5);
if (fabs(d1 - 0.523598775) > 0.00001)
goto Fail;
d1 = atan (0.5);
if (fabs(d1 - 0.463647609) > 0.00001)
goto Fail;
d1 = atan2 (2.0, 1.0);
if (fabs(d1 - 1.107148718) > 0.00001)
goto Fail;
printf ("Passed Conformance Test 19.9.0.1\n");
return;
Fail:
printf ("Failed Conformance Test 19.9.0.1\n");
}