Created
July 14, 2016 12:40
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Change endianess (e.g. 01101 to 10110 bit-wise)
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#include <stdio.h> | |
unsigned int reverse(unsigned char b) { | |
b = (b & 0xF0) >> 4 | (b & 0x0F) << 4; | |
b = (b & 0xCC) >> 2 | (b & 0x33) << 2; | |
b = (b & 0xAA) >> 1 | (b & 0x55) << 1; | |
return b; | |
} | |
int | |
main () | |
{ | |
unsigned int c; | |
while (1) { | |
c = getchar(); | |
if (c == EOF) | |
break; | |
putchar(reverse(c)); | |
}; | |
return 0; | |
} |
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http://stackoverflow.com/questions/2602823/in-c-c-whats-the-simplest-way-to-reverse-the-order-of-bits-in-a-byte