shithub: choc

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Add format string attribute to TXT_snprintf

--- a/textscreen/txt_main.h

+++ b/textscreen/txt_main.h

@@ -122,6 +122,17 @@

     TXT_INPUT_TEXT,

 } txt_input_mode_t;

+

+#ifdef __GNUC__

+

+#define PRINTF_ATTR(fmt, first) __attribute__((format(printf, fmt, first)))

+

+#else  // __GNUC__

+

+#define PRINTF_ATTR(fmt, first)

+

+#endif  // __GNUC__

+

 // Initialize the screen

 // Returns 1 if successful, 0 if failed.

 int TXT_Init(void);

@@ -181,7 +192,7 @@

 int TXT_vsnprintf(char *buf, size_t buf_len, const char *s, va_list args);

 // Safe version of snprintf().

-int TXT_snprintf(char *buf, size_t buf_len, const char *s, ...);

+int TXT_snprintf(char *buf, size_t buf_len, const char *s, ...) PRINTF_ATTR(3, 4);

 #endif /* #ifndef TXT_MAIN_H */