commit files needed for zpm-fetchurl

[zpackage] / tomsfastmath / src / divide / fp_mod.c

diff --git a/tomsfastmath/src/divide/fp_mod.c b/tomsfastmath/src/divide/fp_mod.c
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+/* TomsFastMath, a fast ISO C bignum library.
+ * 
+ * This project is meant to fill in where LibTomMath
+ * falls short.  That is speed ;-)
+ *
+ * This project is public domain and free for all purposes.
+ * 
+ * Tom St Denis, tomstdenis@gmail.com
+ */
+#include <tfm_private.h>
+
+/* c = a mod b, 0 <= c < b  */
+int fp_mod(fp_int *a, fp_int *b, fp_int *c)
+{
+   fp_int t;
+   int    err;
+
+   fp_zero(&t);
+   if ((err = fp_div(a, b, NULL, &t)) != FP_OKAY) {
+      return err;
+   }
+   if (t.sign != b->sign) {
+      fp_add(&t, b, c);
+   } else {
+      fp_copy(&t, c);
+  }
+  return FP_OKAY;
+}
+
+
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */