mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-18 18:12:12 -05:00
7b55b784a1
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/trunk@34 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
19 lines
244 B
C
19 lines
244 B
C
int igray_(int *n0, int *idir)
|
|
{
|
|
int n;
|
|
unsigned long sh;
|
|
unsigned long nn;
|
|
n=*n0;
|
|
|
|
if(*idir>0) return (n ^ (n >> 1));
|
|
|
|
sh = 1;
|
|
nn = (n >> sh);
|
|
while (nn > 0) {
|
|
n ^= nn;
|
|
sh <<= 1;
|
|
nn = (n >> sh);
|
|
}
|
|
return (n);
|
|
}
|