Header files and C preprocessor

Which of the following keyword is used to declare the header file?
1. include
2. exclude
3. string
4. namespace
What does a default header file contain?
1. prototype
2. implementation
3. declarations
4. pointing
Header files in C contain
1. Compiler commands
2. Library functions
3. Header information of C programs
4. Operators
Identify the wrong statement
1. putchar(65)
2. putchar('x')
3. putchar("x")
4. putchar('\n')
Which header file is essential for strcmp() function?
1. string.h
2. strings.h
3. text.h
4. strcmp.h
Which of the following is a key word used for a storage class
1. printf
2. external
3. auto
4. scanf
An Ampersand before the name of a variable denotes
1. Actual Value
2. Variable Name
3. Address
4. Data Type
What are the types of C Preprocessor Directives.?
1. Macros
2. Conditional Compilation
3. File Inclusion
4. All the above
Processor Directive in C language starts with.?
1. $ symbol (DOLLAR)
2. @ symbol (At The Rate)
3. & symbol (Ampersand)
4. # symbol (HASH)
Preprocessor in C language works on.?
1. DOTC file (.c)
2. DOTEXE file (.exe)
3. DOTH file (.h)
4. DOTCP file (.cp)
What is the another name for .C file.?
1. Executable code
2. Source Code
3. Distributable Code
4. Macro code
What is the keyword used to define a C macro.?
1. def
2. definition
3. define
4. defy
What is the output of C program with #define.?

#define CVV 156
int main()
{
int a=10;
a = a*CVV;
printf("CVV=%d",a);
return 0;
}
1. 0
2. 1560
3. 1560
4. Compiler error
What is the C keyword used to create global Constants.?
1. constant
2. definition
3. def
4. define
Choose a correct C statement about #define statement.?

#define CVV 156
1. CVV is called Macro Expansion. 156 is called Macro Template.
2. CVV is called Macro Expansion. 156 is also called Macro Expansion.
3. CVV is called Macro Template. 156 is called Macro Expansion.
4. None of the above
What is the output file generated after processing a .C file.?
1. .h file
2. .exe file
3. .cp file
4. .bak file
How do you safeguard your .C file code from copying by outside developers or world.?
1. Encrypt a C file and share
2. Obfuscate a C file and share
3. Scramble a C file and share
4. Convert to Exe and share.
What is the output of C program with macros.?

#define ERRMSG printf("Some error.");
int main()
{
printf("JAR.");
ERRMSG;
return 0;
}
1. JAR.
2. JAR.ERRMSG
3. JAR.Some error.
4. Compiler error
What is the output of C program with macros.?

#define ERRMSG(a) printf("Error=%d",a);
int main()
{
ERRMSG(10);
return 0;
}
1. ERRMSG(10)
2. Error=
3. Error=10
4. Compiler error
What is the output of C program.?

#define LOGIC(a,b) (a==b)
int main()
{
if(LOGIC(5,5))
{
printf("SAME ");
}
return 0;
}
1. SAME
2. LOGIC(5,5)
3. 5==5
4. Compiler error
What is the output of C program.?

#define LOOP(a) for(int i=1;i<=a;i++) \
{printf("%d ",i);}
int main()
{
LOOP(5);
return 0;
}
1. 5
2. 5 5 5 5 5
3. 1 2 3 4 5
4. Compiler error
What is the output of C program.?

#define TANK(a) a*10+2
int main()
{
int a = TANK(2)*2;
printf("%d",a);
return 0;
}
1. 44
2. 22
3. 24
4. Compiler error
What is the file extension of expanded source code of .C file after preprocessing.?
1. .e file
2. .h file
3. .l file
4. .p file
What is the command to preprocess a C file manually.?
1. pp abc.c
2. cpp abc.c
3. exp abc.c
4. op abc.c
What is the C Preprocessor directive to be used to add a header file or any file to existing C program.?
1. #add
2. #present
3. #include
4. $include

Header files and C preprocessor

Quiz