#pragma once

#include <stddef.h>


struct string {
  size_t len, cap;
  char *data;  // null-terminated
};

struct string string_make(const char *str);

void string_free(struct string s);

// Do not modify the length of the string.
char* string_read(struct string s);

// Returns original length.
size_t string_append(struct string *s, char *arg);

void string_truncate(struct string *s, size_t length);