+++ /dev/null
-#include <stdint.h>
-
-/* Toggle the 16 bit unsigned integer pointed by *p from little endian to
- * big endian */
-void memrev16(void *p) {
- unsigned char *x = p, t;
-
- t = x[0];
- x[0] = x[1];
- x[1] = t;
-}
-
-/* Toggle the 32 bit unsigned integer pointed by *p from little endian to
- * big endian */
-void memrev32(void *p) {
- unsigned char *x = p, t;
-
- t = x[0];
- x[0] = x[3];
- x[3] = t;
- t = x[1];
- x[1] = x[2];
- x[2] = t;
-}
-
-/* Toggle the 64 bit unsigned integer pointed by *p from little endian to
- * big endian */
-void memrev64(void *p) {
- unsigned char *x = p, t;
-
- t = x[0];
- x[0] = x[7];
- x[7] = t;
- t = x[1];
- x[1] = x[6];
- x[6] = t;
- t = x[2];
- x[2] = x[5];
- x[5] = t;
- t = x[3];
- x[3] = x[4];
- x[4] = t;
-}
-
-uint16_t intrev16(uint16_t v) {
- memrev16(&v);
- return v;
-}
-
-uint32_t intrev32(uint32_t v) {
- memrev32(&v);
- return v;
-}
-
-uint64_t intrev64(uint64_t v) {
- memrev64(&v);
- return v;
-}
-
-#ifdef TESTMAIN
-#include <stdio.h>
-
-int main(void) {
- char buf[32];
-
- sprintf(buf,"ciaoroma");
- memrev16(buf);
- printf("%s\n", buf);
-
- sprintf(buf,"ciaoroma");
- memrev32(buf);
- printf("%s\n", buf);
-
- sprintf(buf,"ciaoroma");
- memrev64(buf);
- printf("%s\n", buf);
-
- return 0;
-}
-#endif