Initial Commit

str_utils.cpp

@@ -0,0 +1,32 @@
+//
+// Created by server on 6/19/25.
+//
+#include "str_utils.h"
+
+#include <cstring>
+
+bool startWith(const char * str, const char ch) {
+    if (str == nullptr) return false; // Fail if str is empty
+    if (ch == 0) return false; // Fail if ch is NULL
+    if (str[0] != ch) return false; // Fail if str[0] != ch
+    return true; // str[0] == ch
+}
+
+bool contains(const char * str, const char ch) {
+    if (str == nullptr) return false; // Fail if str is null
+    if (ch == 0) return false; // Fail if ch is null
+    const size_t len = strlen(str);
+    if (len == 0) return false; // Fail if str is empty
+    for (int i = 0; i < len; i++) {
+        if (str[i] == ch) return true; // Found ch in str
+    }
+    return false; // ch is not in str
+}
+
+bool endsWith(const char * str, const char ch) {
+    if (str == nullptr) return false; // Fail if str is empty
+    if (ch == 0) return false; // Fail if ch is NULL
+    const size_t len = strlen(str);
+    if (str[len-1] != ch) return false; // Fail if str[len-1] != ch
+    return true; // str[len-1] == ch
+}