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#include <stdarg.h>
#include "c.h"
char **strv_free(char **l);
void strv_clear(char **l);
char **strv_copy(char * const *l);
unsigned strv_length(char * const *l);
int strv_extend_strv(char ***a, char **b);
int strv_extend_strv_concat(char ***a, char **b, const char *suffix);
int strv_extend(char ***l, const char *value);
int strv_extendv(char ***l, const char *format, va_list ap)
__attribute__ ((__format__ (__printf__, 2, 0)));
int strv_extendf(char ***l, const char *format, ...)
__attribute__ ((__format__ (__printf__, 2, 3)));
int strv_push(char ***l, char *value);
int strv_push_prepend(char ***l, char *value);
int strv_consume(char ***l, char *value);
int strv_consume_prepend(char ***l, char *value);
char **strv_remove(char **l, const char *s);
char **strv_new(const char *x, ...);
char **strv_new_ap(const char *x, va_list ap);
static inline const char* STRV_IFNOTNULL(const char *x) {
return x ? x : (const char *) -1;
static inline int strv_isempty(char * const *l) {
return !l || !*l;
char **strv_split(const char *s, const char *separator);
char *strv_join(char **l, const char *separator);
#define STRV_FOREACH(s, l) \
for ((s) = (l); (s) && *(s); (s)++)
; \
for ((s)--; (l) && ((s) >= (l)); (s)--)
#define STRV_MAKE_EMPTY ((char*[1]) { NULL })
char **strv_reverse(char **l);
#endif /* UTIL_LINUX_STRV */