//---
//	vector: Simple vectors that only grow
//	Preprocessing is a bit ugly here, but it makes it really easy to use.
//---

#ifndef TEX_VECTOR
#define TEX_VECTOR

#include <stdint.h>
#include <stddef.h>

/* Declare three variables for every vector */
#define vector_type(type, name)		\
	type * name;			\
	short name ## _len;		\
	short name ## _size;

/* Trivial initialization */
#define vector_init(name) {		\
	name = NULL;			\
	name ## _len = 0;		\
	name ## _size = 0;		\
}

/* Extension */
#define vector_extend(name) {				\
	if(name ## _len >= name ## _size)		\
		name = realloc(name, sizeof *name *	\
			(name ## _size += 8));		\
}

/* Append */
#define vector_append(name, value) {			\
	vector_extend(name);				\
	(name)[name ## _len++] = (value);		\
}

/* Last elements */
#define vector_last(name) ((name)[name ## _len - 1])

#endif /* TEX_VECTOR */