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btrfs-progs: add function attributes for the printf-like

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Reported by gcc -Wsuggest-attribute=format .

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2016-01-12 14:25:23 +01:00
parent f9ae914756
commit 407f928cd2
2 changed files with 5 additions and 0 deletions
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1
string-table.c
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@ -69,6 +69,7 @@ char *table_vprintf(struct string_table *tab, int column, int row,
* This function is like a printf, but store the results in a cell of * This function is like a printf, but store the results in a cell of
* the table. * the table.
*/ */
__attribute__ ((format (printf, 4, 5)))
char *table_printf(struct string_table *tab, int column, int row, char *table_printf(struct string_table *tab, int column, int row,
char *fmt, ...) char *fmt, ...)
{ {

4
utils.h
View File

@ -276,6 +276,7 @@ const char *get_argv0_buf(void);
unsigned int get_unit_mode_from_arg(int *argc, char *argv[], int df_mode); unsigned int get_unit_mode_from_arg(int *argc, char *argv[], int df_mode);
int string_is_numerical(const char *str); int string_is_numerical(const char *str);
__attribute__ ((format (printf, 1, 2)))
static inline void warning(const char *fmt, ...) static inline void warning(const char *fmt, ...)
{ {
va_list args; va_list args;
@ -287,6 +288,7 @@ static inline void warning(const char *fmt, ...)
fputc('\n', stderr); fputc('\n', stderr);
} }
__attribute__ ((format (printf, 1, 2)))
static inline void error(const char *fmt, ...) static inline void error(const char *fmt, ...)
{ {
va_list args; va_list args;
@ -298,6 +300,7 @@ static inline void error(const char *fmt, ...)
fputc('\n', stderr); fputc('\n', stderr);
} }
__attribute__ ((format (printf, 2, 3)))
static inline int warning_on(int condition, const char *fmt, ...) static inline int warning_on(int condition, const char *fmt, ...)
{ {
va_list args; va_list args;
@ -314,6 +317,7 @@ static inline int warning_on(int condition, const char *fmt, ...)
return 1; return 1;
} }
__attribute__ ((format (printf, 2, 3)))
static inline int error_on(int condition, const char *fmt, ...) static inline int error_on(int condition, const char *fmt, ...)
{ {
va_list args; va_list args;