How to define and work with an array of bits in C?
2016年9月9日 · putbit(array, i, v) first of all checks the least significant bit of v; if it is 0, we have to clear the bit, and if it is 1, we have to set it. To set the bit, we do a bitwise or of the dword that …
c++ - How to set, clear, and toggle a single bit - Stack Overflow
Bit fields are bad in so many ways, I could almost write a book about it. In fact I almost had to do that for a bit field program that needed MISRA-C compliance. MISRA-C enforces all …
Bitfield manipulation in C - Stack Overflow
2009年6月25日 · #define SET_BIT(val, bitIndex) val |= (1 << bitIndex) Defines an atomic operation, since |= is one statement. But the ordinary code generated by a compiler will not try …
What are bitwise shift (bit-shift) operators and how do they work?
The purely bit manipulation version that's simply a series of bitwise OR paired with bit-shifts, which can be directly fed into C/Perl codes. -- Note : in the algebraic one, the binary string is …
How to read/write arbitrary bits in C/C++ - Stack Overflow
2015年2月23日 · There's a bit more work to do to translate the final sample to C. You need typedef struct A A; for the definition of a to work. Also in C, you cannot define the functions in …
binary - Bitwise concatenation in C - Stack Overflow
I'm trying to concatenate two binary numbers in C. So if I have 1010 and 0011 I want my result to be 10100011. I wrote a short routine that I thought would do the job: #include <stdio.h> in...
C/C++ Bit Array or Bit Vector - Stack Overflow
2011年1月11日 · Bit Arrays or Bit Vectors can be though as an array of boolean values. Normally a boolean variable needs at least one byte storage, but in a bit array/vector only one bit is …
c - How to go through each bit of a byte - Stack Overflow
2010年12月16日 · In C, C++, and similarly-syntaxed languages, you can determine if the right-most bit in an integer i is 1 or 0 by examining whether i & 1 is nonzero or zero. (Note that that's …
What is a bitmap in C? - Stack Overflow
2016年6月24日 · I assume you're asking how to implement a bit map (or bit array) in C. Surprisingly, the Bit_array entry on wikipedia describes the concept, but doesn't actually show …
How do I get bit-by-bit data from an integer value in C?
2010年2月12日 · Assuming that the first "position" of the bit in the decimal number is the LSB i.e bit 0, we can extract n bits from a decimal number like this: create mask for number of bits : (1 …