fix: add format attribute to relevant functions (-Wsuggest-attribute=format)

[lttng-ust.git] / include / ust-snprintf.h

diff --git a/include/ust-snprintf.h b/include/ust-snprintf.h
index 37c2218c432ea0de20d5d80c88eff1d9f52f2b5d..da932139726ab0867a5b5f93c7049863a32e87ab 100644 (file)
--- a/include/ust-snprintf.h
+++ b/include/ust-snprintf.h
@@ -10,7 +10,11 @@
 #include <stdarg.h>
 #include <stddef.h>
 
-extern int ust_safe_vsnprintf(char *str, size_t n, const char *fmt, va_list ap);
-extern int ust_safe_snprintf(char *str, size_t n, const char *fmt, ...);
+__attribute__((visibility("hidden")))
+int ust_safe_vsnprintf(char *str, size_t n, const char *fmt, va_list ap);
+
+__attribute__((visibility("hidden")))
+int ust_safe_snprintf(char *str, size_t n, const char *fmt, ...)
+       __attribute__ ((format (printf, 3, 4)));
 
 #endif /* UST_SNPRINTF */