coreutils

crc32: Fix implicit conversion warnings

Diffstat

1 files changed, 4 insertions, 3 deletions

diff --git a/src/crc32.c b/src/crc32.c
index 11a376a..057538f 100644
--- a/src/crc32.c
+++ b/src/crc32.c
@@ -1,4 +1,4 @@
-// crc32.c, version 1.0.2
+// crc32.c, version 1.0.3
 // OMKOV coreutils crc32
 // Copyright (C) 2020, Jakob Wakeling
 // All rights reserved.
@@ -41,7 +41,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE.
 #include <stdint.h>
 #include <stdio.h>
 
-#define VERSION "1.0.2"
+#define VERSION "1.0.3"
 
 static const uint32_t CRC32[] = {
 	0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
@@ -120,14 +120,14 @@ int main(int ac, char *av[]) { A0 = av[0];
 
 static inline int crc32(const char *file) {
 	char stdbuf[BUFSIZ * 16]; FILE *fi;
-	register size_t fl = 0; register uint32_t crc = ~0;
+	register size_t fl = 0; register uint32_t crc = (uint32_t)~0;
 
 	if (!file || (file[0] == '-' && file[1] == 0)) { fi = stdin; }
 	else if (!(fi = fopen(file, "r"))) { return 1; }
 
 	for (size_t c; (c = fread(stdbuf, 1, sizeof (stdbuf), fi)); fl += c) {
 		for (register size_t i = 0; i != c; ++i) {
-			crc = (crc >> 8) ^ CRC32[(crc ^ stdbuf[i]) & 0xFF];
+			crc = (crc >> 8) ^ CRC32[(crc ^ (unsigned int)stdbuf[i]) & 0xFF];
 		}
 	} crc = ~crc;