fix string_format function to handle zero-argument case and fix compiler warning (format-security)

pageldev · pageldev · commit 680f5bfde78d · 2025-09-10T19:25:25.000Z
diff --git a/include/Utils.hpp b/include/Utils.hpp
@@ -276,7 +276,12 @@ inline std::vector<T> get_triangle_strip_outline_indices(const std::size_t num_v
     return out_indices;
 }
 
-template<class... Args>
+inline std::string string_format(const char* fmt)
+{
+    return fmt ? std::string(fmt) : std::string();
+}
+
+template<class... Args, typename std::enable_if<(sizeof...(Args) > 0), int>::type = 0>
 std::string string_format(const char* fmt, Args&&... args)
 {
     const int n = std::snprintf(nullptr, 0, fmt, std::forward<Args>(args)...);

Original file line number	Diff line number	Diff line change
`@@ -276,7 +276,12 @@ inline std::vector<T> get_triangle_strip_outline_indices(const std::size_t num_v`
`276`	`276`	`return out_indices;`
`277`	`277`	`}`
`278`	`278`
`279`		`-template<class... Args>`
	`279`	`+inline std::string string_format(const char* fmt)`
	`280`	`+{`
	`281`	`+ return fmt ? std::string(fmt) : std::string();`
	`282`	`+}`
	`283`	`+`
	`284`	`+template<class... Args, typename std::enable_if<(sizeof...(Args) > 0), int>::type = 0>`
`280`	`285`	`std::string string_format(const char* fmt, Args&&... args)`
`281`	`286`	`{`
`282`	`287`	`const int n = std::snprintf(nullptr, 0, fmt, std::forward<Args>(args)...);`