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Document git_buf_common_prefix

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This function fills in a git_buf with the common prefix of
an array of strings, but let's make that a little more clear.
This commit is contained in:
Russell Belfer 2012-05-15 16:33:05 -07:00
parent 58ffeb9cde
commit 2c83391728
2 changed files with 4 additions and 0 deletions
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3
src/buffer.c
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@ -426,10 +426,13 @@ int git_buf_common_prefix(git_buf *buf, const git_strarray *strings)
if (!strings || !strings->count)
return 0;
/* initialize common prefix to first string */
if (git_buf_sets(buf, strings->strings[0]) < 0)
return -1;
/* go through the rest of the strings, truncating to shared prefix */
for (i = 1; i < strings->count; ++i) {
for (str = strings->strings[i], pfx = buf->ptr;
*str && *str == *pfx; str++, pfx++)
/* scanning */;

1
src/buffer.h
View File

@ -122,6 +122,7 @@ void git_buf_rtrim(git_buf *buf);
int git_buf_cmp(const git_buf *a, const git_buf *b);
/* Fill buf with the common prefix of a array of strings */
int git_buf_common_prefix(git_buf *buf, const git_strarray *strings);
#endif