0ff0b320a
Denys Vlasenko
2013-08-20
Subject
dd: code shrink
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coreutils/dd.c+4 -3
| @@ -395,7 +395,8 @@ int dd_main(int argc UNUSED_PARAM, char **argv) | |
| n = 0; | |
| } | |
| if (flags & FLAG_SWAB) { | |
| - | uint16_t *p16, *end; |
| + | uint16_t *p16; |
| + | ssize_t n2; |
| /* Our code allows only last read to be odd-sized */ | |
| if (prev_read_size & 1) | |
| @@ -408,8 +409,8 @@ int dd_main(int argc UNUSED_PARAM, char **argv) | |
| * prints "wqe". | |
| */ | |
| p16 = (void*) ibuf; | |
| - | end = (void*) (ibuf + (n & ~(ssize_t)1)); |
| - | while (p16 < end) { |
| + | n2 = (n >> 1); |
| + | while (--n2 >= 0) { |
| *p16 = bswap_16(*p16); | |
| p16++; | |
| } | |