how to return a char array from a function in C

Question

I want to return a character array from a function. Then I want to print it in main. how can I get the character array back in main function?

Answer 1

#include
#include
#include
char *substring(int i,int j,char *ch)
{
    int n,k=0;
    char *ch1;
    ch1=(char*)malloc((j-i+1)*1);
    n=j-i+1;

    while(k

This will compile fine without any warning

1. #include stdlib.h
2. pass test=substring(i,j,s);
3. remove m as it is unused
4. either declare char substring(int i,int j,char *ch) or define it before main