Issue #13088: Add shared Py_hexdigits constant to format a number into base 16

1 files changed, 3 insertions, 5 deletions

diff --git a/Modules/sha256module.c b/Modules/sha256module.c
index fe2dcfa793..f1ef329366 100644
--- a/Modules/sha256module.c
+++ b/Modules/sha256module.c
@@ -460,13 +460,11 @@ SHA256_hexdigest(SHAobject *self, PyObject *unused)
 
     /* Make hex version of the digest */
     for(i=j=0; i<self->digestsize; i++) {
-        char c;
+        unsigned char c;
         c = (digest[i] >> 4) & 0xf;
-        c = (c>9) ? c+'a'-10 : c + '0';
-        hex_digest[j++] = c;
+        hex_digest[j++] = Py_hexdigits[c];
         c = (digest[i] & 0xf);
-        c = (c>9) ? c+'a'-10 : c + '0';
-        hex_digest[j++] = c;
+        hex_digest[j++] = Py_hexdigits[c];
     }
     return retval;
 }