Solution for Exercise 17-13
ex1713
#include <stdio.h> char *binbin(int n); int main() { int b,x; b = 21; for(x=0;x<8;x++) { printf("%s 0x%04X %4d\n",binbin(b),b,b); b<<=1; } return(0); } char *binbin(int n) { static char bin[17]; int x; for(x=0;x<16;x++) { bin[x] = n & 0x8000 ? '1' : '0'; n <<= 1; } bin[x] = '\0'; return(bin); }
Notes
* Here's sample output:
* It's difficult to pluck out the four-bit hexadecimal patterns in the output, but you can do it. Keep Table 17-4 handy in the book as you review the numbers shown above.
* Here is the sample output color-coded to make the groups easier to see:
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