C Programming · all questions

Function
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Q161

What will be the output of the following C code?

#include <stdio.h>
int *m();
void main()
{
    int *k = m();
    printf("hello ");
    printf("%d", k[0]);
}
int *m()
{
    int a[2] = {5, 8};
    return a;
}

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Q162

What is #include directive?

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Q163

What is #include <stdio.h>?

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Q164

If storage class is not specified for a local variable, then the default class will be auto.

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Q165

What will be the output of the following C code?

#include <stdio.h>
int x = 5;
void main()
{
    int x = 3;
    m();
    printf("%d", x);
}
void m()
{
    x = 8;
    n();
}
void n()
{
    printf("%d", x);
}

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Q166

What will be the output of the following C code (without linking the source file in which ary1 is defined)?

#include <stdio.h>
int main()
{
    extern ary1[];
    printf("scope rules\n");
}

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Q167

What will be the output of the following C code?

#include <stdio.h>
static int x;
void main()
{
    int x;
    printf("x is %d", x);
}

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Q168

Which of the following is a correct format for declaration of function?

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Q169

Automatic variables are allocated space in the form of a . . . . . . . .

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Q170

The value obtained in the function is given back to main by using . . . . . . . . keyword.

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Q171

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    auto i = 10;
    const auto int *p = &i;
    printf("%d\n", i);
}

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Q172

What will be the x in the following C code?

#include <stdio.h>
void main()
{
    int x;
}

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Q173

What linkage does automatic variables have?

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Q174

What will be the output of the following C code?

#include <stdio.h>
int main()
{
   printf("%d", d++);
}
int d = 10;

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Q175

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    void foo(), f();
    f();
}
void foo()
{
    printf("2 ");
}
void f()
{
    printf("1 ");
    foo();
}

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Q176

Which of the following names for files not accepted?

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Q177

If #include is used with file name in angular brackets.

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Q178

What will be the output of the following C code?

#include <stdio.h>
void main()
{
    m();
    void m()
    {
        printf("hi");
    }
}

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Q179

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    void foo();
    printf("1 ");
    foo();
}
void foo()
{
    printf("2 ");
}

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Q180

What will be the output of the following C code?

#include <stdio.h>
static int x = 5;
void main()
{
    int x = 9;
    {
        x = 4;
    }
    printf("%d", x);
}

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