order « bit « C Data Type Q&A

1. Find the highest order bit in C    stackoverflow.com

what I'm after is something I can feed a number into and it will return the highest order bit. I'm sure there's a simple way. Below is an example ...

2. bit ordering and endianess    stackoverflow.com

I am reading a file byte-by-byte. Say for example i have this byte: 0x41 (0100 0001) represented in hex. Now, I want the first three bits of this byte, i.e (010). I can use ...

3. C program to set k lower order bits    stackoverflow.com

For a 32 bit integer, how do I set say k low order bits in C?

4. What guarantees about low order bits does malloc provide?    stackoverflow.com

When you call C's malloc, is there any guarantee about what the first few low order bits will be? If you're writing a compiler/interpreter for a dynamic language but want ...

5. GCC Compiler Bit Order    stackoverflow.com

I was wondering if there is a GCC C Compiler directive that allows me to determine the bit order for packing of a structure? Something to the likes of:

#pragma bit_order left

6. How to check bit fields order.    bytes.com

Hi everyone - I was reading in the K&R C book (on page 150) that (Bit) Fields are assigned left to right on some machines and right to left on others. This means listing the bit fields from most significant to least, or vice versa. So I am creating a couple header files for drivers which contain structures of all the ...

7. Reversing Bit Order.. i.e. MSB becomes bit 0, LSB becomes bit 15    bytes.com

{ using std::cout; // for NG post size_t num( 12345 ); // std::bitset<32Bits( num ); // #include std::bitset::digitsBit s( num ); cout<<"size_t num="<