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c++ Programming Glossary: char_bit

What platforms have something other than 8-bit char?

http://stackoverflow.com/questions/2098149/what-platforms-have-something-other-than-8-bit-char

imagined it. Another consideration is that POSIX mandates CHAR_BIT 8 . So if you're using POSIX you can assume it. If someone later.. to work around the issue than to think about it. Just type CHAR_BIT . If you want an exact 8 bit type use int8_t . Your code will..

C Macro definition to determine big endian or little endian machine?

http://stackoverflow.com/questions/2100331/c-macro-definition-to-determine-big-endian-or-little-endian-machine

#define ORDER32_H #include limits.h #include stdint.h #if CHAR_BIT 8 #error unsupported char size #endif enum O32_LITTLE_ENDIAN..

What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?

http://stackoverflow.com/questions/3457967/what-belongs-in-an-educational-tool-to-demonstrate-the-unwarranted-assumptions-p

return check_grow k 1 p #define BITS_PER_INT sizeof int CHAR_BIT int bits_per_int BITS_PER_INT int int_max INT_MAX int int_min.. before small letters 'A' 'a' EXPECT 03 a char is 8 bits CHAR_BIT 8 EXPECT 04 a char is signed CHAR_MIN SCHAR_MIN integers EXPECT..

Program portability

http://stackoverflow.com/questions/3525177/program-portability

20ISO 20IEC 2014882 202003.pdf It helps if you assume that CHAR_BIT is equal to 9. sizeof int is equal to 5 and int is a 37 bit.. of course. You will probably actually want to assume that CHAR_BIT is 8 reading files is madness otherwise and perhaps even rely..

Size of Primitive data types

http://stackoverflow.com/questions/4562249/size-of-primitive-data-types

up to the implementation e.g. char is byte but byte size CHAR_BIT macro may be 16 bit. The actual size as defined by the implementation...

System where 1 byte != 8 bit?

http://stackoverflow.com/questions/5516044/system-where-1-byte-8-bit

like don't rely on 1 byte being 8 bit in size use CHAR_BIT instead of 8 as a constant to convert between bits and bytes.. the C89 standard. Edit For example C90 §5.2.4.2.1 requires CHAR_BIT 8 and UCHAR_MAX 255. C89 uses a different section number I believe.. char and byte as essentially synonymous Edit for example CHAR_BIT is described as number of bits for the smallest object that..

size of int, long, etc

http://stackoverflow.com/questions/589575/size-of-int-long-etc

infer minimum size in bytes from that and the value of the CHAR_BIT macro that defines the number of bits in a byte in all but the.. constraint for char is that its size is always 1 byte or CHAR_BIT bits hence the name . Minimum ranges required by the standard.. type to any value as long as the expression sizeof type CHAR_BIT evaluates to the number of bits enough to contain required ranges..

Custom stream manipulator for streaming integers in any base

http://stackoverflow.com/questions/6478745/custom-stream-manipulator-for-streaming-integers-in-any-base

Base conversion code lifted from Nawaz's answer int digits CHAR_BIT sizeof NumType int i 0 NumType tempVal absVal val while tempVal..

Exotic architectures the standards committees care about

http://stackoverflow.com/questions/6971886/exotic-architectures-the-standards-committees-care-about

However I don't know of any architectures used today where CHAR_BIT 8 signed is not two's complement I heard Java had problems with.. all their Univac software. Key points 36 bit words CHAR_BIT 9 ones complement 72 bit non IEEE floating point separate address..

Ensuring C++ doubles are 64 bits

http://stackoverflow.com/questions/752309/ensuring-c-doubles-are-64-bits

guarantee this.. . Would be like this char a sizeof double CHAR_BIT 64 or BOOST_STATIC_ASSERT sizeof double CHAR_BIT 64 You can.. double CHAR_BIT 64 or BOOST_STATIC_ASSERT sizeof double CHAR_BIT 64 You can find CHAR_BIT defined in limits.h or climits . share.. BOOST_STATIC_ASSERT sizeof double CHAR_BIT 64 You can find CHAR_BIT defined in limits.h or climits . share improve this answer..