vector1.cpp

来自「projapi是一个关于GIS行业投影转换的程序库」· C++ 代码 · 共 43 行

#include "stdafx.h"

/* make storage for one and two dimensional matricies */
#ifndef lint
static const char SCCSID[]="@(#)vector1.c	4.4	94/03/22	GIE	REL";
#endif
#include <stdlib.h>
#include "projects.h"
#include <math.h>

/* one dimension array */
void * vector1(int nvals, int size) { return((void *)pj_malloc(size * nvals)); }
	/* free 2D array */
void freev2(void **v, int nrows) 
{
	if (v) 
	{
		for (v += nrows; nrows > 0; --nrows)
			pj_dalloc(*--v);
		pj_dalloc(v);
	}
}
	 /* two dimension array */
void ** vector2(int nrows, int ncols, int size) 
{
	void **s;

	if (s = (void **)pj_malloc(sizeof(void *) * nrows)) 
	{
		int rsize, i;

		rsize = size * ncols;
		for (i = 0; i < nrows; ++i)
			if (!(s[i] = pj_malloc(rsize))) 
			{
				freev2(s, i);
				return (void **)0;
			}
	}
	return s;
}