The output of the following code is:
#define sqr(x= x*x)
main()
{
int a = 10, b = 5;
printf("%d, %d", sqr(a+b),sqr(++a));
}
main()
{
int a = 10, b = 5;
printf("%d, %d", sqr(a+b),sqr(++a));
}
77, 121
225, 121
77< 144
Compilation error
Correct Answer :
D. Compilation error
Related Questions
All macro substitutions in a program are done before compilation of the program.
True
False
The expression 'int j = 6 + 3 % -9;' evaluates to -1.
True
False
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True
False
The function fopen() on failure returns---------------------.
0
NULL
1
none of the above
The main() function can call itself recursively.
True
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static variable will not always have assigned value.
True
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The output of the following code is:
main()
{
unsigned int a = 10;
while (a>=10)
{
int a; a-- ;
}
printf("%i", a);
}
{
unsigned int a = 10;
while (a>=10)
{
int a; a-- ;
}
printf("%i", a);
}
Infinite loop
9
0
None
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True
False
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1 byte
4 bytes
8 bytes
16 bytes
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High Level and Procedural
Low Level and OOPS
Middle Level and Procedural
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True
False
If the class name is X, what is the type of its “this” pointer (in a nonstatic, non-const member function)?
const X* const
X* const
X*
X&
enum helps to create user defined datatype.
True
False
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True
False
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/ + *
* / +
+ / *
* / + -
A pointer is an indication of the variable to be accessed next.
True
False
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True
False
Only one break can be used in one loop.
True
False
The output of the following code is:
void main()
{
int a;
int &b = a;
a=100;
printf("b=%d\ta=%d
", b,a);
}
{
int a;
int &b = a;
a=100;
printf("b=%d\ta=%d
", b,a);
}
b=100 a=100
b=100 a=0
b=0 a=100
Error
The expression (i + j)++ is illegal.
True
False
Every if statement can be converted into an equivalent switch statement.
True
False
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True
False
Which of the following language is predecessor to C Programming Language?
A
B
BCPL
C++
Which options shows the correct hierarchy of arithmetic operators
**, * or /, + or -
**, *, /, +, -
**< /< *< +<-
/ or *, - or +
Which of the following is not true about preprocessor directives
They begin with a hash symbol
They are processed by a preprocessor
They form an integral part of the code
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Sequential
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Which of the following expressions is wrong
float a =123.56;
char ch ='T' * 'A';
char ch ='T' *20;
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The output of the following code is:
void main()
{
float a;
int x = 10, y = 3; a = x / y;
printf("%f", a); }
{
float a;
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printf("%f", a); }
3.999999
Error
3
3.000000
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come out of a loop
exit and return to the main function
restarts iterations from beginning of loop