X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=tomsfastmath%2Fsrc%2Faddsub%2Ffp_sub_d.c;fp=tomsfastmath%2Fsrc%2Faddsub%2Ffp_sub_d.c;h=ba63a17e5c445dfcd37697c2a424d32f5cd7ae6c;hb=66bc25938679f1d6a1d1200f329093d82a5e99b4;hp=0000000000000000000000000000000000000000;hpb=a52ee0733f420ca20224049260d6fc5cf7d8f621;p=zpackage

diff --git a/tomsfastmath/src/addsub/fp_sub_d.c b/tomsfastmath/src/addsub/fp_sub_d.c
new file mode 100644
index 0000000..ba63a17
--- /dev/null
+++ b/tomsfastmath/src/addsub/fp_sub_d.c
@@ -0,0 +1,22 @@
+/* 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 - b */
+void fp_sub_d(fp_int *a, fp_digit b, fp_int *c)
+{
+   fp_int tmp;
+   fp_set(&tmp, b);
+   fp_sub(a, &tmp, c);
+}
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */