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-rw-r--r--stdlib/tens_in_limb.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/stdlib/tens_in_limb.c b/stdlib/tens_in_limb.c
new file mode 100644
index 0000000000..b6e35aa35a
--- /dev/null
+++ b/stdlib/tens_in_limb.c
@@ -0,0 +1,31 @@
+#include <gmp.h>
+
+
+/* Definitions according to limb size used.  */
+#if	BITS_PER_MP_LIMB == 32
+# define MAX_DIG_PER_LIMB	9
+# define MAX_FAC_PER_LIMB	1000000000UL
+#elif	BITS_PER_MP_LIMB == 64
+# define MAX_DIG_PER_LIMB	19
+# define MAX_FAC_PER_LIMB	10000000000000000000ULL
+#else
+# error "mp_limb_t size " BITS_PER_MP_LIMB "not accounted for"
+#endif
+
+
+/* Local data structure.  */
+const mp_limb_t _tens_in_limb[MAX_DIG_PER_LIMB + 1] =
+{    0,                   10,                   100,
+     1000,                10000,                100000L,
+     1000000L,            10000000L,            100000000L,
+     1000000000L
+#if BITS_PER_MP_LIMB > 32
+	        ,	  10000000000ULL,       100000000000ULL,
+     1000000000000ULL,    10000000000000ULL,    100000000000000ULL,
+     1000000000000000ULL, 10000000000000000ULL, 100000000000000000ULL,
+     1000000000000000000ULL, 10000000000000000000ULL
+#endif
+#if BITS_PER_MP_LIMB > 64
+  #error "Need to expand tens_in_limb table to" MAX_DIG_PER_LIMB
+#endif
+};