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xdiff/xmerge.c: use memset() instead of explicit for-loop

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memset() is heavily optimized, and resulting assembler code
is about 150 lines less for that file.

Signed-off-by: Alexey Mahotkin <squadette@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Alexey Mahotkin 2010-04-28 15:29:06 +04:00 committed by Junio C Hamano
parent d599e0484f
commit c8c073c420
1 changed files with 8 additions and 9 deletions
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17
xdiff/xmerge.c
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@ -152,7 +152,6 @@ static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1,
int marker1_size = (name1 ? strlen(name1) + 1 : 0);
int marker2_size = (name2 ? strlen(name2) + 1 : 0);
int marker3_size = (name3 ? strlen(name3) + 1 : 0);
int j;
if (marker_size <= 0)
marker_size = DEFAULT_CONFLICT_MARKER_SIZE;
@ -164,8 +163,8 @@ static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1,
if (!dest) {
size += marker_size + 1 + marker1_size;
} else {
for (j = 0; j < marker_size; j++)
dest[size++] = '<';
memset(dest + size, '<', marker_size);
size += marker_size;
if (marker1_size) {
dest[size] = ' ';
memcpy(dest + size + 1, name1, marker1_size - 1);
@ -183,8 +182,8 @@ static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1,
if (!dest) {
size += marker_size + 1 + marker3_size;
} else {
for (j = 0; j < marker_size; j++)
dest[size++] = '|';
memset(dest + size, '|', marker_size);
size += marker_size;
if (marker3_size) {
dest[size] = ' ';
memcpy(dest + size + 1, name3, marker3_size - 1);
@ -199,8 +198,8 @@ static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1,
if (!dest) {
size += marker_size + 1;
} else {
for (j = 0; j < marker_size; j++)
dest[size++] = '=';
memset(dest + size, '=', marker_size);
size += marker_size;
dest[size++] = '\n';
}
@ -210,8 +209,8 @@ static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1,
if (!dest) {
size += marker_size + 1 + marker2_size;
} else {
for (j = 0; j < marker_size; j++)
dest[size++] = '>';
memset(dest + size, '>', marker_size);
size += marker_size;
if (marker2_size) {
dest[size] = ' ';
memcpy(dest + size + 1, name2, marker2_size - 1);