generateinput.cpp

这是校验位打孔重传的源程序

#include "parameter_sets.h"

const int threshold = RAND_MAX/2;

int * GenerateInputF(struct BasicParaS * ctrl) 
{

	int i,j;
	int * temp = new int[ctrl->codeK];	//定义一个有ctrl->codeK个元素的数组
	if (temp == NULL)
		exit(EXIT_FAILURE);
	srand((unsigned)time(NULL));

	for(i=0; i<ctrl->codeK; i++) 
	{
		if (rand() < threshold) 
		{
			*(temp+i) = 0;
		}
		else 
		{
			*(temp+i) = 1;
		}
	}


	if (ctrl->mode == 1) 
	{
		printf("The input bits are ..\n");
		for (i=0; i<ctrl->codeK/24; i++)
		{
			for (j=0; j<24; j++)
			{
				printf("%2d", *(temp+i*24+j));
			}
			printf("\n");
		}
		if (ctrl->codeK%24) 
		{
			for (i=(ctrl->codeK/24)*24; i<ctrl->codeK; i++) 
			{
				printf("%2d", *(temp+i));
			}
			printf("\n");
		}
	}

	return temp;
}