What is the size_t data type in C? size_t is an unsigned integral data type which is defined in various header files such as: It’s a type which is used to represent the size of objects in bytes and is therefore used as the return type by the sizeof operator.What is the max size of sizeof operator in C?
Bookmark this question. Show activity on this post. I know in C return type of sizeof operator is size_t being unsigned integer type defined in <stdint.h>. Which means max size of it should be 65535 as stated in C99 standard 7.18.3:What is the maximum size of SIZE_MAX in C++?
The standard says that SIZE_MAX must be at least 65535. It specifies no upper bound, and gcc's implementation is perfectly valid. Its implementation-defined value shall be equal to or greater in magnitude (absolute value) than the corresponding value given below, with the same sign.What is the use of sizeof in C++?
It’s a type which is used to represent the size of objects in bytes and is therefore used as the return type by the sizeof operator. It is guaranteed to be big enough to contain the size of the biggest object the host system can handle.