diff options
| -rw-r--r-- | editors/diff.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/editors/diff.c b/editors/diff.c index af6917a03..b89bbc1dc 100644 --- a/editors/diff.c +++ b/editors/diff.c | |||
| @@ -435,7 +435,10 @@ static int *create_J(FILE_and_pos_t ft[2], int nlen[2], off_t *ix[2]) | |||
| 435 | tok = read_token(&ft[i], tok); | 435 | tok = read_token(&ft[i], tok); |
| 436 | if (!(tok & TOK_EMPTY)) { | 436 | if (!(tok & TOK_EMPTY)) { |
| 437 | /* Hash algorithm taken from Robert Sedgewick, Algorithms in C, 3d ed., p 578. */ | 437 | /* Hash algorithm taken from Robert Sedgewick, Algorithms in C, 3d ed., p 578. */ |
| 438 | hash = hash * 128 - hash + TOK2CHAR(tok); | 438 | /*hash = hash * 128 - hash + TOK2CHAR(tok); |
| 439 | * gcc insists on optimizing above to "hash * 127 + ...", thus... */ | ||
| 440 | unsigned o = hash - TOK2CHAR(tok); | ||
| 441 | hash = hash * 128 - o; /* we want SPEED here */ | ||
| 439 | continue; | 442 | continue; |
| 440 | } | 443 | } |
| 441 | if (nlen[i]++ == sz) { | 444 | if (nlen[i]++ == sz) { |