/ **************************************************************************** * * Purpose: To show the effect of a bitwise AND (&) by converting * an ASCII graphic extension into its character equivalent. * Author: M.J. Leslie. * Date: 04-Mar-95 * ****************************************************************************/ main() { /* * Hex E6 looks like this in binary * * 1110 0110 * * UNSIGNED is used to stop C using * first 1 as an indicator of the sign */ unsigned char value='\xE6'; /* Hex 7F looks like this in binary * * 0111 1111 */ printf("%2X %2X \n", value, (value & '\x7F')); /* A bitwise AND has the effect of * filtering unwanted bits. * * 1110 0110 (E6) AND * 0111 1111 (7F) * --------- * 0110 0110 (66) */ } /**************************************************************************** * * Program results are: * * E6 66 * ****************************************************************************/
file: /Techref/language/ccpp/Cref/EXAMPLES/and.c, 1KB, , updated: 1998/1/27 11:16, local time: 2024/8/23 09:01,
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