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Add tests for almost_equals NaN and Inf

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This commit is contained in:
Danny Robson 2012-05-03 15:59:54 +10:00
parent 52d73a8070
commit b6f9bf9ebd
1 changed files with 23 additions and 2 deletions
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25
test/maths.cpp
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@ -3,15 +3,23 @@
#include <cstdlib> #include <cstdlib>
#include <cmath> #include <cmath>
#include <limits>
using std::sqrt; using std::sqrt;
using std::numeric_limits;
int int
main (int, char **) { main (int, char **) {
check_hard (!almost_equal (-2.0, 0.0)); check_hard (!almost_equal (-2.0, 0.0));
check_hard (!almost_equal (-2.f, 0.f)); check_hard (!almost_equal (-2.f, 0.f));
check_hard ( almost_equal ( 0.0, 0.0));
check_hard ( almost_equal ( 0.0, numeric_limits<double>::min ()));
check_hard ( almost_equal (numeric_limits<double>::infinity (),
numeric_limits<double>::infinity ()));
check_hard (!almost_equal (numeric_limits<double>::infinity (), 0.0));
check_hard (!almost_equal (numeric_limits<double>::quiet_NaN (),
numeric_limits<double>::quiet_NaN ()));
check_eq (min (-2, 0, 2), -2); check_eq (min (-2, 0, 2), -2);
check_eq (max (-2, 0, 2), 2); check_eq (max (-2, 0, 2), 2);
@ -21,5 +29,18 @@ main (int, char **) {
check_eq (rootsquare (2, 2), sqrt (8)); check_eq (rootsquare (2, 2), sqrt (8));
double pos_zero = 1.0 / numeric_limits<double>::infinity ();
double neg_zero = -1.0 / numeric_limits<double>::infinity ();
check_eq (sign (-1), -1);
check_eq (sign ( 1), 1);
check_eq (sign (pos_zero), 1);
check_eq (sign (neg_zero), -1);
check_eq (sign ( numeric_limits<double>::infinity ()), 1);
check_eq (sign (-numeric_limits<double>::infinity ()), -1);
check_eq (to_degrees (PI), 180);
check_eq (to_radians (180), PI);
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }