gistfile1.c

#ifndef CARRAYMACROS_H
#define CARRAYMACROS_H 1

#include <inttypes.h>
#include <stdio.h>

#define ARRAY_SIZE(array) array ## _num
#define ARRAY_MAX(array) array ## _max

#define ARRAY_CDECL(array, type) \
	uint32_t ARRAY_MAX(array);   \
	uint32_t ARRAY_SIZE(array);  \
	type *array;

#define ARRAY_INIT(array, type, initial_size)          \
	do { array = malloc(sizeof(type) * initial_size); \
		ARRAY_MAX(array)  = initial_size;             \
		ARRAY_SIZE(array) = 0; } while(0)

/* Resizes array of type type to at least ARRAY_SIZE(array) */ 
#define ARRAY_MAKESIZE(array, type)                                                  \
	while (ARRAY_MAX(array) < ARRAY_SIZE(frame->variables)) { ARRAY_MAX(array) *= 2; \
	void *tmp = realloc(array, (sizeof(type) * ARRAY_MAX(array)));                   \
	if( ! tmp) {                                                                     \
		/* TODO: Move error code to separate file and remove                         \
		         include of stdio.h */                                               \
		fprintf(stderr, "ERROR: Couldn't realloc() Frame variables.");               \
		exit(-1);                                                                    \
	} array = tmp; }

#define ARRAY_PACK(dest, source, type) \
	do { void *tmp = realloc(dest, (sizeof(type) * ARRAY_MAX(source)));              \
	if( ! tmp) {                                                                     \
		/* TODO: Move error code to separate file and remove                         \
		         include of stdio.h */                                               \
		fprintf(stderr, "ERROR: Couldn't realloc() Frame variables.");               \
		exit(-1);                                                                    \
	} dest = tmp; }

#endif