size_t op_cnt, op_cap; /* Number of ops, amount of allocated space. */
double *number_stack; /* Evaluation stack: numerics, Booleans. */
size_t op_cnt, op_cap; /* Number of ops, amount of allocated space. */
double *number_stack; /* Evaluation stack: numerics, Booleans. */
union any_node *expr_allocate_string_buffer (struct expression *e,
const char *string, size_t length);
union any_node *expr_allocate_string (struct expression *e,
union any_node *expr_allocate_string_buffer (struct expression *e,
const char *string, size_t length);
union any_node *expr_allocate_string (struct expression *e,
union any_node *expr_allocate_variable (struct expression *e,
struct variable *);
union any_node *expr_allocate_format (struct expression *e,
union any_node *expr_allocate_variable (struct expression *e,
struct variable *);
union any_node *expr_allocate_format (struct expression *e,