All macro substitutions in a program are done before compilation of the program.
True
False
Correct Answer :
A. True
Related Questions
Which classes allow primitive types to be accessed as objects?
Storage
Virtual
Friend
Wrapper
static variable will not always have assigned value.
True
False
All elements of a structure are allocated contiguous memory locations.
True
False
strcat() function ----------------------- two strings.
delete
concatenate
compare
none of the above
What's wrong? (x = 4 && y = 5) ? (a = 5) ; (b = 6);
the question mark should be an equal sign
the first semicolon should be a colon
there are too many variables in the statement
the conditional operator is only used with apstrings
The output of the following code is:
main()
{
xyz: goto abc;
printf("Hello");
abc: printf("World");
goto xyz;
}
{
xyz: goto abc;
printf("Hello");
abc: printf("World");
goto xyz;
}
Infinite loop
Hello World
World Hello
Compilation error
There are total ------ numbers of operators in 'C'.
35
45
55
40
The statement "for (i = 0, j = 2; j <= 10; j++)" is a valid statement in 'C'.
True
False
Each pass through a loop is called a/an
enumeration
iteration
culmination
pass through
The-------------------- statement helps immediate exit from any part of the loop
break
continue
exit
All of the above
Which of the following is not an infinite loop
int i =1;
while (1)
{i++;}
for( ; ; );
int true=0< false;
while (true)
{false = 1;}
int y, x = 0;
do
{y = x;}
while (x==0);
The printf() function retunes which value when an error occurs?
Positive value
Zero
Negative value
None of these
The output of the following code is:
main()
{
int a = 0;
for (; i = 0; i++)
printf("%d", a);
}
{
int a = 0;
for (; i = 0; i++)
printf("%d", a);
}
0
Nothing will be displayed
Infinite loop
None of the above
gets() and puts() are unformatted I/O functions.
True
False
The output of the following code is:
void main()
{
int a = 0;
while (a<=50) for(;;) if(++a % 50==0) break;
printf("a = %d", a);
}
{
int a = 0;
while (a<=50) for(;;) if(++a % 50==0) break;
printf("a = %d", a);
}
a = 100
a = 50
compilation error
runtime error
The output of the following code is:
main()
{
int a[10], i;
for (i = 1; I <= 0; i++)
{
scanf("%d", a[i]);
printf("%d", a[i]);
}
}
{
int a[10], i;
for (i = 1; I <= 0; i++)
{
scanf("%d", a[i]);
printf("%d", a[i]);
}
}
10
Logical error
Runtime error
1 to 10 will be displayed
An array declared as A[100][100] can hold a maximum of 100 elements.
True
False
C is a ___ language
High Level and Procedural
Low Level and OOPS
Middle Level and Procedural
Machine Level and OOPS
What is right way to Initialization array?
int num[6] = { 2, 4, 12, 5, 45, 5 } ;
int n{} = { 2, 4, 12, 5, 45, 5 } ;
int n{6} = { 2< 4< 12 } ;
int n(6) = { 2, 4, 12, 5, 45, 5 } ;
When is std::bad_alloc exception thrown?
When new operator cannot allocate memory
When alloc function fails
When type requested for new operation is considered bad< thisexception is thrown
When delete operator cannot delete teh allocated (corrupted) object
Which header file is essential for using strcmp() function?
string.h
strings.h
text.h
strcmp.h
Which of the following is the most preferred way of throwing and handling exceptions?
Throw by value and catch by reference.
Throw by reference and catch by reference.
Throw by value and catch by value
Throw the pointer value and provide catch for teh pointer type.
What is the difference between overloaded functions and overridden functions?
Overloading is a dynamic or run-time binding and Overriding is static or compile-time binding
Redefining a function in a friend class is called function overriding while Redefining a function in a derived class is called a overloaded fucntion.
Overloading is a static or compile-time binding and Overriding is dynamic or run-time binding
Redefining a function in a friend class is called function overloading while Redefining a function in a derived class is called as overridden fucnion.
An array elements are always stored in _________ memory locations.
Sequential
Random
Sequential and Random
None of the above
fopen() function returns a pointer to the open file.
True
False
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
They have to end with a semi colon
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
What's wrong? for (int k = 2, k <=12, k++)
the increment should always be ++k
the variable must always be the letter i when using a for loop
there should be a semicolon at the end of the statement
the commas should be semicolons
Right shifting an operand 1bit is equivalent to multiplying it by 2.
True
False
unsigned char has a range from 0 to ------------
253
254
255
256