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strvec: declare the strvec_push_nodup() function globally

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This function differs from `strvec_push()` in that it takes ownership of
the allocated string that is passed as second argument.

This is useful when appending elements to the string array that have
been freshly allocated and serve no further other purpose after that.

Without declaring this function globally, call sites would allocate the
memory, only to have `strvec_push()` duplicate the string, and then the
first copy would need to be released. Having this function globally
avoids that kind of unnecessary work.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2024-07-13 21:08:19 +00:00 committed by Junio C Hamano
parent 0593c1ea30
commit ce68178a0a
2 changed files with 4 additions and 1 deletions
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2
strvec.c
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@ -10,7 +10,7 @@ void strvec_init(struct strvec *array)
memcpy(array, &blank, sizeof(*array));
}
static void strvec_push_nodup(struct strvec *array, const char *value)
void strvec_push_nodup(struct strvec *array, char *value)
{
if (array->v == empty_strvec)
array->v = NULL;

3
strvec.h
View File

@ -46,6 +46,9 @@ void strvec_init(struct strvec *);
/* Push a copy of a string onto the end of the array. */
const char *strvec_push(struct strvec *, const char *);
/* Push an allocated string onto the end of the array, taking ownership. */
void strvec_push_nodup(struct strvec *array, char *value);
/**
* Format a string and push it onto the end of the array. This is a
* convenience wrapper combining `strbuf_addf` and `strvec_push`.