feat(utils): utils namespace and custom stoul

webserv/config/utils.cpp

@@ -1,7 +1,21 @@
 #include <webserv/config/utils.hpp>
 
+#include <stdexcept>
 #include <string>
 
+namespace utils
+{
+size_t stoul(const std::string &str, int base)
+{
+    size_t idx = 0;
+    unsigned long value = std::stoul(str, &idx, base);
+    if (idx != str.length())
+    {
+        throw std::invalid_argument("Invalid characters in number: " + str);
+    }
+    return value;
+}
+
 std::string trim(const std::string &str)
 {
     size_t first = str.find_first_not_of(" \t\n\r");
@@ -48,5 +62,6 @@ size_t findCorrespondingClosingBrace(const std::string &str, size_t openPos)
             return i;
         }
     }
-    return std::string::npos; // No matching closing brace found
+    return std::string::npos;
 }
+} // namespace utils

webserv/config/utils.hpp

@@ -4,6 +4,10 @@
 
 #include <stddef.h> // for size_t
 
+namespace utils
+{
+size_t stoul(const std::string &str, int base = 10);
 std::string trimSemi(const std::string &str);
 std::string trim(const std::string &str);
 size_t findCorrespondingClosingBrace(const std::string &str, size_t openPos);
+} // namespace utils