void jsonp_error_set(json_error_t *error, int line, int column,
size_t position, const char *msg, ...);
void jsonp_error_vset(json_error_t *error, int line, int column,
void jsonp_error_set(json_error_t *error, int line, int column,
size_t position, const char *msg, ...);
void jsonp_error_vset(json_error_t *error, int line, int column,