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Why don\'t we add null pointer at the end of array of integer?How can we calculate the length of array of integer?
poojayadav12
- Jul 28th, 2010
In case of array of characters we need a null pointer because after we get the output we press the enter key which takes 1 ASCII character value and as a result we need the null character.But in case ...
pratikgotal
- Apr 4th, 2010
No Ali null is not equal to '' it was nul. NULL is a macro defined in for the null pointer. NUL is the name of the first character in the ASCII character set. It corresponds to a zero value. There's n...
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What is use of macro arguments in c? what is major difference between normal macro definition and macro arguments.
kapil mandge
- Feb 25th, 2006
Macro is not inline function: we can see here...#SQR(x) x*xvoid inline SQR(int x){x*=x;}if we call macroSQR(++y) than it will work like this ++y*++y, value of y increamenting twice.but when we call inline function value is increamented only once i think that is right.
mef526
- Feb 13th, 2006
In above answer the macro SQR(4-y) doesn't work as expected. Can you see why?A macro is not an inline function, it is a text replacement done by the C preprocessor. Think of it as a search and replace with replaceable parameters.
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p[0] = 'H';
printf("%s", p);
}
">main(){ char *p = "hello world"; p[0] = 'H'; printf("%s", p);}
A) Compile errorB) “Hello world”C) Runtime error.D) “hello world”
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}
">#define SQR(x) x * xmain(){ printf("%d", 225/SQR(15));}
A) 15B) 225C) 1D) none of the above
Sukumar Paul
- Jul 24th, 2010
Yes the answer will be 225/15*15. As / and * has the same precedednce and associativity is from left to right so it will give 225(225/15*15 => 15*15 => 225).
yba
- Jul 10th, 2007
In algebra * has higher precedence than /, but in C they have the same precedence, and are left-associative, meaning the operations are performed left to right.So 225 / 15 * 15 gives (225/15)*15 or 22...
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What is the output of the following program?
#include #define FIRST_PART 7#define LAST_PART 5#define ALL_PARTS FIRST_PART + LAST_PARTint main() {printf ("The Square root of all parts is %dn , ALL_PARTS * ALL_PARTS) ;return(0);} A. 35B. 144C. 49D. 47
Rahul Kumar
- Jan 30th, 2012
Answer is 47.
Explanation:
7+5*7+5=7+35+5=47ganeshbhat
- Feb 18th, 2010
@ mef526 - You have added the brackets yourself. Those brackets make a huge difference. the answer is 47.
