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C Programming

C Programming
What is the return value of the following statement if it is placed in C program? strcmp("ABC", "ABC");

33
0
1
-1
Compilation Error

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C Programming
Determine Output:void main(){ int i=i++, j=j++, k=k++; printf("%d %d %d", i, j, k);}

1 1 1
Error
0 0 0
garbage values

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C Programming
Which of the following function calculates the square of 'x' in C?

sqr(x)
power(2, x)
pow(2, x)
pow(x, 2)
power(x, 2)

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C Programming
The output of the following program is:#define f(g,g2) g##g2void main(){ int var12=100; printf("%d", f(var,12));}

Syntax error
g##g2
100
Runtime error
10012

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C Programming
Determine output:#include void main(){ char *p = NULL; char *q = 0; if(p) printf(" p "); else printf("nullp"); if(q) printf("q"); else printf(" nullq");}

nullp nullq
p q
x nullq where x can be p or nullp depending on the value of NULL
Depends on the compiler

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C Programming
Comment on the following?const int *ptr;

We can change the pointer as well as the value pointed by it.
We cannot change the pointer ptr itself.
We cannot change the value pointed by ptr.
Both of the above

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