| Greg Hartman | 76d05dc | 2016-11-23 15:51:27 -0800 | [diff] [blame] | 1 | /* |
| 2 | * memswap() | ||||
| 3 | * | ||||
| 4 | * Swaps the contents of two nonoverlapping memory areas. | ||||
| 5 | * This really could be done faster... | ||||
| 6 | */ | ||||
| 7 | |||||
| 8 | #include <string.h> | ||||
| 9 | |||||
| 10 | void memswap(void *m1, void *m2, size_t n) | ||||
| 11 | { | ||||
| 12 | char *p = m1; | ||||
| 13 | char *q = m2; | ||||
| 14 | char tmp; | ||||
| 15 | |||||
| 16 | while (n--) { | ||||
| 17 | tmp = *p; | ||||
| 18 | *p = *q; | ||||
| 19 | *q = tmp; | ||||
| 20 | |||||
| 21 | p++; | ||||
| 22 | q++; | ||||
| 23 | } | ||||
| 24 | } | ||||