[math] Floating point equality with relative epsilon comparisons

src/float_utils.h

@@ -0,0 +1,16 @@
+#ifndef FLOAT_UTILS_H
+#define FLOAT_UTILS_H
+
+#include <stdlib.h>
+#include <stdbool.h>
+#include <float.h>
+#include <math.h>
+
+bool float_equals(float a, float b);
+bool float_equals_epsilon(float a, float b, float epsilon);
+
+bool double_equals(double a, double b);
+bool double_equals_epsilon(double a, double b, double epsilon);
+
+#endif
+