The following two loops represent the behavior of two functions in the standard

Question

The following two loops represent the behavior of two functions in the standard C library.Can you identify what these loops do, and which function they stand for?

 int __________( char *s )
{
    char *s1 = s;
    while (*s1 != 0)
    s1++;
    return s1 - s;
}

char *__________( char *s1, char *s2 )

 {
    char *s = s1;
    while ( (*s1 = *s2) != 0 )
        { s1++; s2++; }
    return s;
}

The following two loops represent the behavior of two functions in the standard C library.Can you identify what these loops do, and which function they stand for?

  int __________( char *s )
{
    char *s1 = s;
    while (*s1 != 0)
    s1++;
    return s1 - s;
}

char *__________( char *s1, char *s2 )

  {
    char *s = s1;
    while ( (*s1 = *s2) != 0 )
        { s1++; s2++; }
    return s;
}

Explanation / Answer

The first function denotes , the strlen function of the Standard C Library , the next one represents a strcpy function

1)Strlen - This function outputs the length of the given input string in integer format.

2)Strcpy - This function outputs the String which results from copying the string s1 to s2.

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