C Language Quiz (Set 16) - Upskilling Engineers

C Language (Set 6)

1 / 10

What is the purpose of the 'offsetof' macro in C?

To calculate the size of a data structure.

To include a header file.

To calculate the difference between two pointers.

To determine the position of a field within a structure.

2 / 10

Which C library function is used to convert a string to a floating-point number?

strtof

strfloat

strflt

floattostr

3 / 10

What is the purpose of the 'exit' function in C?

To terminate a loop.

To close an open file.

To return a value from a function.

To exit the program immediately.

4 / 10

Which C library function is used to convert an integer to a string?

itoa

inttostr

int2str

integerstr

5 / 10

What is the purpose of the 'do-while' loop in C?

To create an infinite loop.

To repeat a block of code as long as a condition is true.

To iterate over elements of an array.

To execute a block of code at least once before checking a condition.

6 / 10

In C, what is the purpose of the 'wchar_t' data type?

To store wide characters.

To store integer values.

To store floating-point values.

To represent time and date.

7 / 10

What is the purpose of the 'volatile' keyword when used in a function prototype in C?

To indicate that the function returns a volatile value.

To declare a volatile function.

To indicate that the function uses volatile variables.

To define a pointer to a volatile function.

8 / 10

Which C library function is used to compare two memory blocks?

memcompare

memcmp

comparemem

memorycmp

9 / 10

What is the result of the expression '5 << 2' in C?

10 / 10

What is the purpose of the 'const' keyword when used in a function prototype in C?

To declare a constant variable.

To indicate that the function does not modify its arguments.

To create a pointer to a constant variable.

To define a constant function.

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