commit f48fce093b07aeda95c18850f5e086d9f2383380
author Lasse Collin <lasse.collin@tukaani.org> Fri Jul 25 22:30:38 2014 +0300
committer Lasse Collin <lasse.collin@tukaani.org> Fri Jul 25 22:30:38 2014 +0300
tree 671aef15c2e3b6074f6ec9295a76f0e0b47b3398
parent 6bf5308e34e23dede5b301b1b9b4f131dacd9218

liblzma: Simplify LZMA fast mode code by using memcmp().

src/liblzma/lzma/lzma_encoder_optimum_fast.c

diff --git a/src/liblzma/lzma/lzma_encoder_optimum_fast.c b/src/liblzma/lzma/lzma_encoder_optimum_fast.c
index 7ecb4cc..8922cbd 100644
--- a/src/liblzma/lzma/lzma_encoder_optimum_fast.c
+++ b/src/liblzma/lzma/lzma_encoder_optimum_fast.c
@@ -155,16 +155,7 @@
 	const uint32_t limit = len_main - 1;
 
 	for (uint32_t i = 0; i < REPS; ++i) {
-		const uint8_t *const buf_back = buf - coder->reps[i] - 1;
-
-		if (not_equal_16(buf, buf_back))
-			continue;
-
-		uint32_t len;
-		for (len = 2; len < limit
-				&& buf[len] == buf_back[len]; ++len) ;
-
-		if (len >= limit) {
+		if (memcmp(buf, buf - coder->reps[i] - 1, limit) == 0) {
 			*back_res = UINT32_MAX;
 			*len_res = 1;
 			return;