C: rational-numbers

c/rational-numbers/src/rational_numbers.h

@@ -0,0 +1,33 @@
+#ifndef RATIONAL_NUMBERS
+#define RATIONAL_NUMBERS
+
+#include <stdint.h>
+
+typedef struct {
+    int16_t numerator;
+    int16_t denominator;
+} rational_t;
+
+rational_t add(rational_t r1, rational_t r2);
+rational_t subtract(rational_t r1, rational_t r2);
+rational_t multiply(rational_t r1, rational_t r2);
+rational_t divide(rational_t r1, rational_t r2);
+rational_t absolute(rational_t r);
+rational_t exp_rational(rational_t r, uint16_t n);
+float exp_real(uint16_t x, rational_t r);
+rational_t reduce(rational_t r);
+
+/* See GNUmakefile below for explanation
+ * https://github.com/braoult/exercism/blob/master/c/templates/GNUmakefile
+ */
+#if defined UNIT_TEST || defined DEBUG
+#include <stdio.h>
+#include <stdlib.h>
+#endif
+
+#ifdef  TESTALL
+#undef  TEST_IGNORE
+#define TEST_IGNORE() {}
+#endif
+
+#endif