Fix #2135

yhirose · yhirose · commit 61893a00a42d · 2025-05-03T22:50:47.000+09:00
diff --git a/httplib.h b/httplib.h
@@ -2066,7 +2066,9 @@ template <size_t N> inline constexpr size_t str_len(const char (&)[N]) {
 }
 
 inline bool is_numeric(const std::string &str) {
-  return !str.empty() && std::all_of(str.begin(), str.end(), ::isdigit);
+  return !str.empty() &&
+         std::all_of(str.cbegin(), str.cend(),
+                     [](unsigned char c) { return std::isdigit(c); });
 }
 
 inline uint64_t get_header_value_u64(const Headers &headers,

Original file line number	Diff line number	Diff line change
`@@ -2066,7 +2066,9 @@ template <size_t N> inline constexpr size_t str_len(const char (&)[N]) {`
`2066`	`2066`	`}`
`2067`	`2067`
`2068`	`2068`	`inline bool is_numeric(const std::string &str) {`
`2069`		`- return !str.empty() && std::all_of(str.begin(), str.end(), ::isdigit);`
	`2069`	`+ return !str.empty() &&`
	`2070`	`+ std::all_of(str.cbegin(), str.cend(),`
	`2071`	`+ [](unsigned char c) { return std::isdigit(c); });`
`2070`	`2072`	`}`
`2071`	`2073`
`2072`	`2074`	`inline uint64_t get_header_value_u64(const Headers &headers,`