342c513a4a
Such an API change allows us to use an argv_array this way:
struct argv_array to_free = ARGV_ARRAY_INIT;
const char *msg;
if (some condition) {
msg = "constant string message";
... other logic ...
} else {
msg = argv_array_pushf(&to_free, "format %s", var);
}
... use "msg" ...
... do other things ...
argv_array_clear(&to_free);
Note that argv_array_pushl() and argv_array_pushv() are used to push
one or more strings with a single call, so we do not return any one
of these strings from these two functions in order to reduce the
chance to misuse the API.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
26 lines
703 B
C
26 lines
703 B
C
#ifndef ARGV_ARRAY_H
|
|
#define ARGV_ARRAY_H
|
|
|
|
extern const char *empty_argv[];
|
|
|
|
struct argv_array {
|
|
const char **argv;
|
|
int argc;
|
|
int alloc;
|
|
};
|
|
|
|
#define ARGV_ARRAY_INIT { empty_argv, 0, 0 }
|
|
|
|
void argv_array_init(struct argv_array *);
|
|
const char *argv_array_push(struct argv_array *, const char *);
|
|
__attribute__((format (printf,2,3)))
|
|
const char *argv_array_pushf(struct argv_array *, const char *fmt, ...);
|
|
LAST_ARG_MUST_BE_NULL
|
|
void argv_array_pushl(struct argv_array *, ...);
|
|
void argv_array_pushv(struct argv_array *, const char **);
|
|
void argv_array_pop(struct argv_array *);
|
|
void argv_array_clear(struct argv_array *);
|
|
const char **argv_array_detach(struct argv_array *);
|
|
|
|
#endif /* ARGV_ARRAY_H */
|