base64: clarify signedness in negative initialization

Some platforms do not use signed char (arm)
9 years ago · 069384da5e
parent 8e7a4b66e8
commit 069384da5e
1 changed files with 2 additions and 1 deletions
--- a/src/core/security/base64.c
+++ b/src/core/security/base64.c
@ -33,6 +33,7 @@

 #include "src/core/security/base64.h"

+#include <stdint.h>
 #include <string.h>

 #include <grpc/support/alloc.h>
@ -41,7 +42,7 @@

 /* --- Constants. --- */

-static const char base64_bytes[] = {
+static const int8_t base64_bytes[] = {
    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,
    -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,