#include <stdint.h>
#include <stdarg.h>
#include <stddef.h>

struct string* new_string(
    const wchar_t* str,
    size_t olen);

struct string* new_string_from_ascii(
    const char* str,
    size_t olen);

struct string* new_string_from_ascii_format(
    const char* fmt, ...);