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What is the difference between .size() and .length ? Is .size() only for arraylists and .length only for arrays?
I'm looking for detailed information regarding the size of basic C++ types. I know that it depends on the architecture (16 bits, 32 bits, 64 bits) and the compiler. But are there any standards for ...
What does the C++ standard say about the size of int, long?
591 From Wikipedia: According to the 1999 ISO C standard (C99), size_t is an unsigned integer type of at least 16 bit (see sections 7.17 and 7.18.3). size_t is an unsigned data type defined by several C/C++ standards, e.g. the C99 ISO/IEC 9899 standard, that is defined in stddef.h 1.
Denoted as Long Size = 64 bits (8byte) Can hold integers of range -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 default value is 0L If your usage of a variable falls in the 32 bit range, use Int, else use long. Usually long is used for scientific computations and stuff like that need much accuracy. (eg. value of pi).
The sizeof operator yields the size (in bytes) of its operand, which may be an expression or the parenthesized name of a type. The size is determined from the type of the operand. Assuming a clear understanding will lead us to a discussion about bytes.
Is the size of C "int" 2 bytes or 4 bytes? - Stack Overflow