Table of Contents
What is sizeof void?
The size of void pointer varies system to system. If the system is 16-bit, size of void pointer is 2 bytes. If the system is 32-bit, size of void pointer is 4 bytes. If the system is 64-bit, size of void pointer is 8 bytes.
What is the size of void * in C?
5 Answers. The size of a void* is a platform dependent value. Typically it’s value is 4 or 8 bytes for 32 and 64 bit platforms respectively.
What type is sizeof?
Sizeof is a much used operator in the C or C++. It is a compile time unary operator which can be used to compute the size of its operand. The result of sizeof is of unsigned integral type which is usually denoted by size_t.
What is sizeof int?
sizeof(int) returns the number of bytes used to store an integer. int* means a pointer to a variable whose datatype is integer. sizeof(int*) returns the number of bytes used to store a pointer. Since the sizeof operator returns the size of the datatype or the parameter we pass to it.
What type of value does size of return?
Discussion Forum
| Que. | What type of value does sizeof return? |
|---|---|
| b. | short |
| c. | unsigned int |
| d. | long |
| Answer:unsigned int |
What is a void in C?
Void is an empty data type that has no value. We use void data type in functions when we don’t want to return any value to the calling function. Example: void sum (int a, int b); – This function won’t return any value to the calling function.
Where is sizeof defined?
sizeof is a unary operator in the programming languages C and C++. It generates the storage size of an expression or a data type, measured in the number of char-sized units. The actual number of bits of type char is specified by the preprocessor macro CHAR_BIT, defined in the standard include file limits.
Can I use sizeof in #define?
4 Answers. Because sizeof() is calculated after the preprocessor is run, so the information is not available for #if . This involves working out and substituting all the preprocessor conditionals (#if, #define, replacing defined words with their replacements).
What does sizeof do?
The sizeof is a keyword, but it is a compile-time operator that determines the size, in bytes, of a variable or data type. The sizeof operator can be used to get the size of classes, structures, unions and any other user defined data type.
What value does sizeof return?
4 Answers. Answer: sizeof returns the size of the type in bytes. Example: sizeof(char) is 100\% guaranteed to be 1 , but this does not mean, that it’s one octet (8 bits).