add some const

src/ciphers/camellia.c

@@ -171,7 +171,7 @@ static const ulong32 SP4404[] = {
 0x28280028, 0x7b7b007b, 0xc9c900c9, 0xc1c100c1, 0xe3e300e3, 0xf4f400f4, 0xc7c700c7, 0x9e9e009e,
 };
 
-static ulong64 key_sigma[] = {
+static const ulong64 key_sigma[] = {
    CONST64(0xA09E667F3BCC908B),
    CONST64(0xB67AE8584CAA73B2),
    CONST64(0xC6EF372FE94F82BE),

src/misc/base64/base64_encode.c

@@ -20,12 +20,12 @@
 #if defined(LTC_BASE64) || defined (LTC_BASE64_URL)
 
 #if defined(LTC_BASE64)
-static const char *codes_base64 =
+static const char * const codes_base64 =
 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 #endif /* LTC_BASE64 */
 
 #if defined(LTC_BASE64_URL)
-static const char *codes_base64url =
+static const char * const codes_base64url =
 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
 #endif /* LTC_BASE64_URL */
 

src/misc/error_to_string.c

@@ -16,7 +16,7 @@
   Convert error codes to ASCII strings, Tom St Denis
 */
 
-static const char *err_2_str[] =
+static const char * const err_2_str[] =
 {
    "CRYPT_OK",
    "CRYPT_ERROR",

src/pk/asn1/der/utctime/der_encode_utctime.c

@@ -17,7 +17,7 @@
 
 #ifdef LTC_DER
 
-static const char *baseten = "0123456789";
+static const char * const baseten = "0123456789";
 
 #define STORE_V(y) \
     out[x++] = der_ia5_char_encode(baseten[(y/10) % 10]); \