Merge pull request #311 from dag-erling/format-nonliteral

Mark onig_snprintf_with_pattern() as printf()-like
kkos · Oct 4, 2024 · 3e5120d · 3e5120d
2 parents 2da403b + 02e5761
commit 3e5120d
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/src/regint.h b/src/regint.h
@@ -61,6 +61,14 @@
 #endif
 #endif
 
+#ifndef ONIG_PRINTFLIKE
+#if defined(__clang__) || defined(__GNUC__)
+#define ONIG_PRINTFLIKE(x, y) __attribute__((format(printf, x, y)))
+#else
+#define ONIG_PRINTFLIKE(x, y)
+#endif
+#endif
+
 /* config */
 /* spec. config */
 #define USE_REGSET
@@ -945,7 +953,7 @@ struct re_pattern_buffer {
 extern void onig_add_end_call(void (*func)(void));
 extern void onig_warning(const char* s);
 extern UChar* onig_error_code_to_format P_((int code));
-extern void ONIG_VARIADIC_FUNC_ATTR onig_snprintf_with_pattern PV_((UChar buf[], int bufsize, OnigEncoding enc, UChar* pat, UChar* pat_end, const UChar *fmt, ...));
+extern void ONIG_VARIADIC_FUNC_ATTR ONIG_PRINTFLIKE(6, 7) onig_snprintf_with_pattern PV_((UChar buf[], int bufsize, OnigEncoding enc, UChar* pat, UChar* pat_end, const UChar *fmt, ...));
 extern int onig_compile P_((regex_t* reg, const UChar* pattern, const UChar* pattern_end, OnigErrorInfo* einfo));
 extern int onig_is_code_in_cc_len P_((int enclen, OnigCodePoint code, void* /* CClassNode* */ cc));
 extern RegexExt* onig_get_regex_ext(regex_t* reg);