51. ungetc() may be used with . . . . . . . .
52. What will be the output of the following C code?
#include <stdio.h>
#include <math.h>
void main()
{
int k = sqrt(-4);
printf("%d\n", k);
}
#include <stdio.h>
#include <math.h>
void main()
{
int k = sqrt(-4);
printf("%d\n", k);
}53. stdout, stdin and stderr are . . . . . . . .
54. What will be the output of the following C code?
#include <stdio.h>
#include <ctype.h>
int main()
{
char i = 9;
if (isdigit(i))
printf("digit\n");
else
printf("not digit\n");
return 0;
}
#include <stdio.h>
#include <ctype.h>
int main()
{
char i = 9;
if (isdigit(i))
printf("digit\n");
else
printf("not digit\n");
return 0;
}55. Which of the following causes an error?
56. Which header file includes a function for variable number of arguments?
57. fputs() adds newline character.
58. For binary files, a . . . . . . . . must be appended to the mode string.
59. The type va_list in an argument list is used . . . . . . . .
60. The standard header . . . . . . . . is used for variable list arguments (...) in C.
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