New repo setup

include/string

@@ -0,0 +1,54 @@
+#ifndef STRING_H
+#define STRING_H
+#include <stddef.h>
+
+namespace std {
+
+class string {
+   public:
+    string();
+    string(const char* other);
+    string(const string& other);
+    ~string();
+    int size() const;
+    size_t find(const string& str, size_t pos = 0) const;
+    string& erase(size_t pos, size_t len);
+
+    bool operator==(const string& other) const;
+    bool operator!=(const string& other) const;
+
+    string& operator=(char c);
+    string& operator=(const char* other);
+    string& operator=(const string& other);
+    string operator+(char other) const;
+    string operator+(const char* other) const;
+    string operator+(const string& other) const;
+    string& operator+=(char c);
+    string& operator+=(const char* other);
+    string& operator+=(const string& other);
+
+    const char& operator[](int index) const;
+
+    const char* c_str() const;
+
+    string substr(int start_index) const;
+    string substr(int start_index, int end_index) const;
+
+    static bool strcmp(const char* first, const char* second);  // differs from standard implemtation
+    static char* substr(const char* str, int start_index);
+    static char* substr(const char* str, int start_index, int end_index);
+    static char* strdup(const char* s);
+    static void strcpy(char*& dest, const char* src);            // differs from standard implemtation, allocates more memory in destination string if its not big enough
+    static void strncpy(char*& dest, const char* src, int len);  // ^
+    static void strcat(char*& dest, const char* src);            // ^
+    static int strlen(const char* s);                            // doesn't include the null-terminator
+
+    static const size_t npos = -1;
+
+   private:
+    char* s;
+};
+
+}  // namespace std
+
+#endif