How many bits is long long?
How many bits is long long?
32 bits
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 |
Is a long 4 bytes?
Many sources, including Microsoft, reference both the int and long type as being 4 bytes and having a range of (signed) -2,147,483,648 to 2,147,483,647. For platform independent code you can use, the types like intN where N is number of bits.
Is long 32 bits or 64 bits?
LP64 is short for long-pointer 64. It is commonly referred to as the 4/8/8 data type size model and includes the integer/long/pointer type sizes, measured in bytes. Other UNIX platforms usually have wchar_t 4 bytes for both 32-bit and 64-bit mode. This is an unsigned type.
Is Long 4-byte or 8 byte?
The size of a “long” integer varies between architectures and operating systems. The size of the “int” integer type is 4 bytes and the size of the “long long” integer type is 8 bytes for all the above combinations of operating system and architecture.
What is unsigned long long int in C?
long int Data Type: In C, the long int data type occupies 4 bytes (32 bits) of memory to store an integer value. unsigned long int data type denotes a 32 – bit integer. It does not use a bit to store the sign. Hence it can hold only positive values between 0 and 4,294,967,295 (2 32 – 1).
What is unsigned long in C?
Unsigned long variables are extended size variables for number storage, and store 32 bits (4 bytes). Unlike standard longs unsigned longs won’t store negative numbers, making their range from 0 to 4,294,967,295 (2^32 – 1).
What is the size of an unsigned long long int?
up vote 64 down vote. Executive summary: it’s 64 bits, or larger. unsigned long long is the same as unsigned long long int. Its size is platform-dependent, but guaranteed by the C standard (ISO C99) to be at least 64 bits.
How many bits are there in a byte?
The Standard doesn’t specify how many bits are in a byte, but that’s a different thing. An implementation could use 64 bit bytes, which would result in sizeof(long long) == 1 and that would be conformant. – John Dibling Apr 29 ’11 at 20:01. @John: you’re right.
How many bytes is a long in C++?
According to the standard, someone could make long long 256 bits, and it’d be perfectly legal. The C++ Language Specification simply states that the size of a long must be at least the size of an int. It used to be standard to have int = 2 bytes and long = 4 bytes.
How many bits are in a char?
A char is always exactly one byte on every platform. The Standard doesn’t specify how many bits are in a byte, but that’s a different thing. An implementation could use 64 bit bytes, which would result in sizeof(long long) == 1 and that would be conformant. – John Dibling Apr 29 ’11 at 20:01. @John: you’re right.
