/prog/ - C++ for dummies

Name: Anonymous 2008-02-06 8:11

It may seem odd to have a command in C++ (or any other programming language)

that’s specifically ignored by the computer. However, all computer languages

have some version of the comment. It’s critical that the programmer

explain what was going through her mind when she wrote the code. A programmer’s

thoughts may not be obvious to the next colleague who picks up

her program and tries to use it or modify it. In fact, the programmer herself

may forget what her program meant if she looks at it months after writing the

original code and has left no clue.

Name: Anonymous 2008-02-07 12:20



n = ((n >>  1) & 0x55555555) | ((n <<  1) & 0xaaaaaaaa);

n = ((n >>  2) & 0x33333333) | ((n <<  2) & 0xcccccccc);

n = ((n >>  4) & 0x0f0f0f0f) | ((n <<  4) & 0xf0f0f0f0);

n = ((n >>  8) & 0x00ff00ff) | ((n <<  8) & 0xff00ff00);

n = ((n >> 16) & 0x0000ffff) | ((n << 16) & 0xffff0000);



// Reverse the bits in a word.

C++ for dummies

1 Name: Anonymous 2008-02-06 8:11

25 Name: Anonymous 2008-02-07 12:20

Name: Anonymous 2008-02-06 8:11

Name: Anonymous 2008-02-07 12:20