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strv: add helper to extend strv from both sides

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Also, use the more correct type of 'const char* const*' for the input strv.
This requires adding the cast in a few places, but also allows to remove some
casts in others.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek
2024-03-07 18:49:44 +01:00
parent 4bf32eac52
commit 9bc7493098
7 changed files with 29 additions and 10 deletions
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src/basic/strv.h
+4 -1
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@@ -43,7 +43,10 @@ int strv_copy_unless_empty(char * const *l, char ***ret);
size_t strv_length(char * const *l) _pure_;
int strv_extend_strv(char ***a, char * const *b, bool filter_duplicates);
int strv_extend_strv_concat(char ***a, char * const *b, const char *suffix);
int strv_extend_strv_biconcat(char ***a, const char *prefix, const char* const *b, const char *suffix);
static inline int strv_extend_strv_concat(char ***a, const char* const *b, const char *suffix) {
return strv_extend_strv_biconcat(a, NULL, b, suffix);
}
int strv_prepend(char ***l, const char *value);
/* _with_size() are lower-level functions where the size can be provided externally,