Is Int64 same as long long?
Is Int64 same as long long?
Anyway, there is no real difference between the two: as you said, both are used to create a 64 bit integer… on today’s 32 bit platforms. While __int64 is probably guaranteed to always implement 64 bit integers (due to its name), long long is not tied to a particular bit size.
What is the range of Int64?
In this article
| Type Name | Bytes | Range of Values |
|---|---|---|
| __int32 | 4 | -2,147,483,648 to 2,147,483,647 |
| unsigned __int32 | 4 | 0 to 4,294,967,295 |
| __int64 | 8 | -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 |
| unsigned __int64 | 8 | 0 to 18,446,744,073,709,551,615 |
Is Int64 long C++?
The __int64 type is synonymous with type long long .
What is the difference between long and long long?
long is equivalent to long int , just as short is equivalent to short int . A long int is a signed integral type that is at least 32 bits, while a long long or long long int is a signed integral type is at least 64 bits. This doesn’t necessarily mean that a long long is wider than a long .
How many bits is a long long?
Table 3-2 Sizes and Ranges of Data Types
| Type | Size | Range |
|---|---|---|
| Integral Types | ||
| long int , or signed long int (OpenVMS) | 32 bits | – 2147483648 to 2147483647 |
| long int , or signed long int (Digital UNIX) | 64 bits | – 9223372036854775808 to 9223372036854775807 |
| unsigned long int (OpenVMS) | 32 bits | 0 to 4294967295 |
What is size of long in C?
4 bytes
Long Integer Size The size is typically about 32-bits or 4 bytes on a 16/ 32-bit compiler. Yet, it varies depending on what compiler we are using. There is no specification of the data types sizes according to the C standard, except the character.
How long is a long C++?
The long long takes twice as much memory as long. In different systems, the allocated memory space differs. On Linux environment the long takes 64-bit (8-bytes) of space, and the long long takes 128-bits (16-bytes) of space. This is used when we want to deal with some large value of integers.
How long is a long C?
8 bytes
Integer Types
| Type | Storage size | Value range |
|---|---|---|
| short | 2 bytes | -32,768 to 32,767 |
| unsigned short | 2 bytes | 0 to 65,535 |
| long | 8 bytes or (4bytes for 32 bit OS) | -9223372036854775808 to 9223372036854775807 |
| unsigned long | 8 bytes | 0 to 18446744073709551615 |
What is difference between long long and long long int in C?
The specifier is how you tell the compiler what the type is but you can use different specifiers to end up at the same type. Hence long on its own is neither a type nor a modifier as your question posits, it’s simply a specifier for the long int type. Ditto for long long being a specifier for the long long int type.