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Diffstat (limited to 'converter/other/pamtosvg/epsilon.c')
-rw-r--r-- | converter/other/pamtosvg/epsilon.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/converter/other/pamtosvg/epsilon.c b/converter/other/pamtosvg/epsilon.c new file mode 100644 index 00000000..0c914dae --- /dev/null +++ b/converter/other/pamtosvg/epsilon.c @@ -0,0 +1,17 @@ +#include <math.h> + +#include "epsilon.h" + +/* Numerical errors sometimes make a floating point number just slightly + larger or smaller than its true value. When it matters, we need to + compare with some tolerance, REAL_EPSILON, defined in kbase.h. */ + +bool +epsilon_equal(float const v1, + float const v2) { + + return + v1 == v2 /* Usually they'll be exactly equal, anyway. */ + || fabs(v1 - v2) <= REAL_EPSILON; +} + |