c++ Programming Glossary: bitwise
Does the 'mutable' keyword have any purpose other than allowing the variable to be modified by a const function? http://stackoverflow.com/questions/105014/does-the-mutable-keyword-have-any-purpose-other-than-allowing-the-variable-to improve this question It allows the differentiation of bitwise const and logical const. Logical const is when an object doesn't..
Bigint (bigbit) library http://stackoverflow.com/questions/1055661/bigint-bigbit-library and bigger integers and bit operations like bit shifting bitwise OR AND position first zero bit speed is crucial so it would..
Why is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array c This eliminates the branch and replaces it with some bitwise operations. Note that this hack is not strictly equivalent to..
How to add two numbers without using ++ or + or another arithmetic operator http://stackoverflow.com/questions/1149929/how-to-add-two-numbers-without-using-or-or-another-arithmetic-operator one. Does an answer exist c c algorithm bit manipulation bitwise share improve this question This is something I have written..
Examples of when a bitwise swap() is a bad idea? http://stackoverflow.com/questions/11638271/examples-of-when-a-bitwise-swap-is-a-bad-idea of when a bitwise swap is a bad idea You're not supposed to treat object pointers.. of when a correct swap would break if you performed a bitwise swap I can easily come up with contrived examples with self.. self pointers but I can't think of any real world ones. c bitwise swap share improve this question I'm going to argue that..
How to perform a bitwise operation on floating point numbers http://stackoverflow.com/questions/1723575/how-to-perform-a-bitwise-operation-on-floating-point-numbers to perform a bitwise operation on floating point numbers I tried this float a 1.4123.. 1 3 I get the program running. The only thing is that the bitwise operation is done on the integer representation of the number.. a genetic algorithm . c floating point genetic algorithm bitwise operators share improve this question At the language level..
Why does left shift operation invoke Undefined Behaviour when the left side operand has negative value? http://stackoverflow.com/questions/3784996/why-does-left-shift-operation-invoke-undefined-behaviour-when-the-left-side-oper when the left side operand has negative value In C bitwise left shift operation invokes Undefined Behaviour when the left.. the other hand the behaviour is implementation defined for bitwise right shift operation when the left operand is negative right..
Is `long` guaranteed to be at least 32 bits? http://stackoverflow.com/questions/4329777/is-long-guaranteed-to-be-at-least-32-bits . So even though the C standard does not specify the bitwise representation of signed negative numbers it has to either be..
How do you set, clear and toggle a single bit in C/C++? http://stackoverflow.com/questions/47981/how-do-you-set-clear-and-toggle-a-single-bit-in-c-c share improve this question Setting a bit Use the bitwise OR operator to set a bit. number 1 x That will set bit x . Clearing.. number 1 x That will set bit x . Clearing a bit Use the bitwise AND operator to clear a bit. number ~ 1 x That will clear bit.. will clear bit x . You must invert the bit string with the bitwise NOT operator ~ then AND it. Toggling a bit The XOR operator..
How to find all possible subsets of a given array? http://stackoverflow.com/questions/679203/how-to-find-all-possible-subsets-of-a-given-array x is a superset of set y can be achieved with a single bitwise operation and an integer comparison. share improve this answer..
Circular shift operations in C++ http://stackoverflow.com/questions/776508/circular-shift-operations-in-c 0000 1101 0000 An example would be helpful. c c rotation bitwise share improve this question using the inline assembler __asm..
What does this & operator mean here? http://stackoverflow.com/questions/11164617/what-does-this-operator-mean-here
Bitwise operation on signed integer http://stackoverflow.com/questions/11644362/bitwise-operation-on-signed-integer operation on signed integer I know that the behavior of on..
Branchless code that maps zero, negative, and positive to 0, 1, 2 http://stackoverflow.com/questions/1610836/branchless-code-that-maps-zero-negative-and-positive-to-0-1-2 question int Compare int x int y return x y y x 1 Edit Bitwise only Guess and don't count then int Compare int x int y int..
How to perform a bitwise operation on floating point numbers http://stackoverflow.com/questions/1723575/how-to-perform-a-bitwise-operation-on-floating-point-numbers thing as bitwise operation on floating point numbers . Bitwise operations in C work on value representation of a number. And..
bitwise not operator http://stackoverflow.com/questions/2513525/bitwise-not-operator to represent signed numerical value in bits JLS 15.15.5 Bitwise complement operator ~ note that in all cases ~x equals x 1 ..
Set individual bit in C++ http://stackoverflow.com/questions/3136267/set-individual-bit-in-c Thanks c bit manipulation share improve this question Bitwise operators in C . ...set bit 2... Bit endianness . I would like..
What happens when you bit shift beyond the end of a variable? http://stackoverflow.com/questions/4330282/what-happens-when-you-bit-shift-beyond-the-end-of-a-variable become zero. The behavior is undefined C99 §6.5.7 Bitwise shift operators If the value of the right operand is negative..
What is >>> operation in C++ http://stackoverflow.com/questions/5529443/what-is-operation-in-c code in Java. Check out Java online tutorial here on Bitwise shift operators. It says The unsigned right shift operator shifts..
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