File Input Output MCQs

What is the purpose of va_end?

What will be the output of the following C code?

#include <stdio.h>
#include <ctype.h>
int main()
{
    char c = 't';
    printf("%d\n", isspace(c));
}

stderr is similar to?

stderr is similar to?

What error is generated on placing an address operator with a variable in the printf statement?

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    int i = 10, j = 2;
    printf("%d\n", printf("%d %d ", i, j));
}

What will sin(x) returns?

what is the function of fputs()?

What will be the output of the following C code?

#include <stdio.h>
#include <ctype.h>
int main()
{
    int i = 9;
    if (isdigit(i))
        printf("digit\n");
    else
        printf("not digit\n");
        return 0;
}