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strcpy.c
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strcpy.c
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#include <stdio.h>
#include <stdlib.h>
#include<string.h>
int mystrlen(char *a)
{
int count = 0;
while(*a != '\0')
{
count++;
a++;
}
printf("Count is %d\n", count);
return count;
}
void mystrrev(char *a, char *b)
{
char *p, *q;
p = b;
q = a + mystrlen(a) -1;
while(q >= a)
{
(*p++) = (*q--);
}
printf("Reverse : %s\n", b);
}
char* mystrcpy(char *a, char *b)
{
char *p;
p = a;
printf("String before copy : %s\n", b); //q = a + mystrlen(a) - 1;
while (*a)
a++;
while((*a++) = (*b++))
;
printf("Final after copy : %s\n", p);
return p;
}
int main(int argc, char *argv[])
{
char *str = argv[1];
char str4[] = "ujwala";
char str1[20];
char str2[20];
char *str3;
printf("String : %s\n", str);
mystrrev(str,str1);
str3 = (char*) malloc(strlen(str1)+1);
str3 = mystrcpy(str2,str4);
printf("Final : %s\n", str3);
// mystrrev(str2,str1);
return 0;
}