Add format attributes to functions with format strings

Compiling with -Wsuggest-attribute=format shows that these functions
could use a format attribute, which helps the compiler validate format
strings.  This patch adds them.

Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>
Change-Id: I2884d13b08d9ea67680289e59fb40ebdfecdc3d4

diff --git a/argpar/argpar.c b/argpar/argpar.c
index b8b7c6307d82ead3741bffe4bfc003282981aee3..13f66812894037b669924eb4446fd3f5472e464b 100644 (file)
--- a/argpar/argpar.c
+++ b/argpar/argpar.c
@@ -35,7 +35,13 @@
 
 #define ARGPAR_ASSERT(_cond) assert(_cond)
 
-static
+#ifdef __MINGW_PRINTF_FORMAT
+# define ARGPAR_PRINTF_FORMAT __MINGW_PRINTF_FORMAT
+#else
+# define ARGPAR_PRINTF_FORMAT printf
+#endif
+
+static __attribute__((format(ARGPAR_PRINTF_FORMAT, 1, 0)))
 char *argpar_vasprintf(const char *fmt, va_list args)
 {
        int len1, len2;
@@ -65,7 +71,7 @@ end:
 }
 
 
-static
+static __attribute__((format(ARGPAR_PRINTF_FORMAT, 1, 2)))
 char *argpar_asprintf(const char *fmt, ...)
 {
        va_list args;
@@ -78,7 +84,7 @@ char *argpar_asprintf(const char *fmt, ...)
        return str;
 }
 
-static
+static __attribute__((format(ARGPAR_PRINTF_FORMAT, 2, 3)))
 bool argpar_string_append_printf(char **str, const char *fmt, ...)
 {
        char *new_str = NULL;