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Question Detail
Difference between calloc() and malloc()
- calloc() takes a single argument while malloc() needs two arguments
- malloc() takes a single argument while calloc() needs two arguments
- malloc() initializes the allocated memory to ZERO
- calloc() initializes the allocated memory to NULL
Answer: Option B
1. What is use of \r in c
- used to insert a vertical tab
- used to insert a tab
- places cursor at the end of line
- places cursor at the start of line
Answer: Option D
2. Which is invalid name of identifier
- world
- addition23
- test_name
- factorial
Answer: Option D
3. What will be output of
#include
void main()
{
char test =`S`;
printf("\n%c",test);
}
void main()
{
char test =`S`;
printf("\n%c",test);
}
- S
- Error
- Garbage value
- None of above
Answer: Option A
4. What is correct order of precedence in C
- Addition, Division, Modulus
- Addition, Modulus, Division
- Multiplication, Substration, Modulus
- Modulus, Multiplication, Substration
Answer: Option D
5. Wild pointer in C
- if pointer is pointing to a memory location from where variable has been deleted
- if pointer has not been initialized
- if pointer has not defined properly
- if pointer pointing to more than one variable
Answer: Option B
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