Little Endian - Big Endian Problem

Question

Little Endian vs Big Endian

Big Endian = 0x31014950
Little Endian = 0x50490131

However Using this Method

inline unsigned int endian         


        

Answer 1

Your code seems to be correct.

The following program (http://ideone.com/a5TBF):

#include 

inline unsigned int endian_swap(unsigned const int& x)  
{
return ( ( (x & 0x000000FF) << 24 ) | 
         ( (x & 0x0000FF00) << 8  ) |
         ( (x & 0x00FF0000) >> 8  ) |
         ( (x & 0xFF000000) >> 24 ) );
}

int main()
{
    unsigned int x = 0x12345678;
    unsigned int y = endian_swap(x);
    printf("%x %x\n", x, y);
    return 0;
}

outputs:

12345678 78563412

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Edit:
you need std::cout << std::hex << r, otherwise you are printing (1) wrong variable, and (2) in decimal :-)

See this example: http://ideone.com/EPFz8