Hardcoded factorial constants

1 files changed, 16 insertions, 0 deletions

diff --git a/src/utils/constants.h b/src/utils/constants.h
index da0a813..e328a4c 100644
--- a/src/utils/constants.h
+++ b/src/utils/constants.h
@@ -11,6 +11,22 @@
 
 #define UINT8_ERROR UINT8_MAX
 
+STATIC int64_t factorial[FACTORIAL_MAX+1] = {
+        [0] = 1,
+        [1] = 1,
+        [2] = 2,
+        [3] = 6,
+        [4] = 24,
+        [5] = 120,
+        [6] = 720,
+        [7] = 5040,
+        [8] = 40320,
+        [9] = 362880,
+        [10] = 3628800,
+        [11] = 39916800,
+        [12] = 479001600,
+};
+
 STATIC int64_t binomial[12][12] = {
         {1,  0,  0,   0,   0,   0,   0,   0,   0,  0,  0, 0},
         {1,  1,  0,   0,   0,   0,   0,   0,   0,  0,  0, 0},