int case_idx, char *dst, size_t dst_size);
const struct operation *expr_get_function (size_t idx);
int case_idx, char *dst, size_t dst_size);
const struct operation *expr_get_function (size_t idx);
const char *expr_operation_get_name (const struct operation *);
const char *expr_operation_get_prototype (const struct operation *);
const char *expr_operation_get_name (const struct operation *);
const char *expr_operation_get_prototype (const struct operation *);