Long Int Size 64 Bit The C language provides the four basic arithmetic type specifiers char int float and double as well as the boolean type bool and the modifiers signed unsigned short and long The following table lists the permissible combinations in specifying a large set of storage size specific declarations The actual size of the integer types varies by implementation The standard requires only size rel
The int and unsigned int types have a size of 4 bytes However portable code shouldn t depend on the size of int because the language standard allows this to be A short type must be at least 16 bits wide A long type must be at least 32 bits wide A long long type must be at least 64 bits wide The standard specifies a size relationship
Long Int Size 64 Bit
Long Int Size 64 Bit
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The Intel Compiler treats the size of a long integer as 4 bytes or 8 bytes depending on the architecture and operating system affecting portability The size of a long Longlong target type will have width of at least 64 bits Note as with all type specifiers any order is permitted unsignedlonglongint and longintunsignedlong name the
In visual CPP int and long both types are 4 bytes isn t long supposed to be 8 bytes in 64 bit machine I thought size of these data types same only in 32 bit machine Visual studio If you need a 64 bit wide integer use the int64 t uint64 t or define your own That way your code will be portable and won t rely on the platform specifics for the int long short sizes
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Q How big is an int long int etc in C A It depends The standard leaves it completely up to the compiler which also means the same compiler can make it depend on I find that the sizeof unsigned long is 4byte in my embedded linux system while my host is 8byte My host is running 64bit linux while my target is running 32bit linux Is there any thing similar
Solution Use fixed width integer types like int64 t in C or Long in Java for portability Discover whether the long data type is always 64 bits across different architectures in programming On x86 64 Linux long is 64 bit and int is 32 bit On x86 64 Windows they re both 32 bit and you need long long to get 64 bit IMO it s best to include and use for example int64 t
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https://en.wikipedia.org › wiki › C_data_types
The C language provides the four basic arithmetic type specifiers char int float and double as well as the boolean type bool and the modifiers signed unsigned short and long The following table lists the permissible combinations in specifying a large set of storage size specific declarations The actual size of the integer types varies by implementation The standard requires only size rel
https://learn.microsoft.com › en-us › cpp › cpp › data-type-ranges
The int and unsigned int types have a size of 4 bytes However portable code shouldn t depend on the size of int because the language standard allows this to be
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Long Int Size 64 Bit - In visual CPP int and long both types are 4 bytes isn t long supposed to be 8 bytes in 64 bit machine I thought size of these data types same only in 32 bit machine Visual studio
