C language to 8bit bit data where 1 or 0

Source: Internet
Author: User
/* For a position of 8bit bit data 1 or 0 example: 00001010 to second zero 00001000*/#include <stdio.h> #include <stdlib.h>void bit_set_1_0 ( unsigned char *p_data,unsigned char position,int flag) {if (Position > 8| |position<1 | | p_data = NULL | | flag<0 | | flag>1) {printf ("Input not valid \ n"); exit (-1);} if (*p_data >> (position-1) & 1)! = Flag) {*p_data = *p_data ^ (1 << (position-1));}} int main () {unsigned char ch = 5;bit_set_1_0 (&ch,6,1);p rintf ("%d", ch); return 0;}


C language to 8bit bit data where 1 or 0

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