DS-lab program 2(strcpy and strcat)

#include

#include

void newstrcpy(char *,char *); /*Function declaration */

void newstrcat(char *,char *);

void main()

{

char str1[30],str2[20],temp[90];

int i=0;

clrscr();

printf(" enter the first string\n");

gets(str1);

printf("\n enter the second string\n");

gets(str2);

while(str1[i])

{

temp[i]=str1[i];

i++;

}

temp[i]='\0';

newstrcpy(str1,str2);

printf("copied string is \n%s \n %s",str1,str2);

newstrcat(temp,str2);

printf("\n the strings after cancantation: \nstring1: %s\nstring2:%s",temp,str2);

getch();

}

/* Function to copy 2 strings */

void newstrcpy(char *p,char *q)

{

while(*q)

{

*p=*q;

p++;

q++;

}

*p='\0';

}

/*Function to cancancate string */

void newstrcat(char *p,char *q)

{

while(*p)

{

p++;

}

while(*q)

{

*p=*q;

p++;

q++;

}

*p='\0';

}