void cleanup_utf8_conversion(convert_t conv);
char* convert_from_utf8(convert_t conv, const char* input, int* conv_fails);
char* convert_to_utf8(convert_t conv, const char* input);
void cleanup_utf8_conversion(convert_t conv);
char* convert_from_utf8(convert_t conv, const char* input, int* conv_fails);
char* convert_to_utf8(convert_t conv, const char* input);