void MyCopy(char **pptarget, const char *psrc)
	{
	do
		{
		if(*psrc!=' ') *((*pptarget)++) = *psrc;
		}
	while(*(++psrc));
	**pptarget= 0 ;
	}


int main(int argc, char* argv[])
	{
	char *output;
	char *str1 = "this is str1";
	char *str2 = "this is str2";
	char *pout;

	

	pout=output = new char[strlen(str1)+strlen(str2)+ 1 ];

	MyCopy(&pout, str1);
	MyCopy(&pout, str2);

	printf(output);
	delete[] output;
	return  0 ;
	}

#include <string.h>
#include <stdio.h>
#include <stdlib.h>

int MyCopy(char *ptarget, const char *psrc)
	{
	int i= 0 , j= 0 ;

	do
		{
		if(psrc[i]!=' ') ptarget[j++] = psrc[i];
		}
	while(psrc[++i]);

	ptarget[j]= 0 ;
	return j;
	}

int main(int argc, char* argv[])
	{
	char *output;
	char *str1 = "this is str1";
	char *str2 = "this is str2";
	char *pout;
	int n;

	

	pout=output = (char *)malloc(strlen(str1)+strlen(str2)+ 1 );

	n = MyCopy(pout, str1);
	MyCopy( &pout[n], str2);

	printf(output);
	free(output);

	return  0 ;
	}