C Programming and Technical Programming Program

Assuming a integer 2-bytes, What will be the output of the program?
#include

int main()
{
printf("%xn", -1<<3);
return 0;
}
Options
1) ffff
2) fff8
3) 0
4) -1

Read Solution (Total 2)

Answer is 2)fff8
4 years agoHelpfull: Yes(1) No(0)

In binary: 0000 0000 0000 0001 → represented 1
1111 1111 1111 1111 → represents -1 (2’s compliment of 1)
1111 1111 1111 1110 → -1
4 years agoHelpfull: Yes(1) No(0)

C Other Question

Point out the error if any in the following program (Turbo C).
#include
#include
void display(int num, ...);

int main()
{
display(4, 'A', 'a', 'b', 'c');
return 0;
}
void display(int num, ...)
{
char c; int j;
va_list ptr;
va_start(ptr, num);
for(j=1; j<=num; j++)
{
c = va_arg(ptr, char);
printf("%c", c);
}
}
Options
1) Error: unknown variable ptr
2) Error: Lvalue required for parameter
3) No error and print A a b c
4) No error and print 4 A a b c What is the maximum combined length of command line
arguments including the space between adjacent
arguments?