binary.c

Linux 环境下 C 开发的初始练习代码

// file binary.c
//

#include <stdlib.h>
#include <string.h>
#include <stdio.h>

typedef unsigned long int32;

int32 bin(char *s) {

  int i;
  int32 n = 0;

  for (i=0; i<strlen(s); i++) {
    char c = s[i];
    if (c == '0' || c == '1') n = n << 1;
    if (c == '1') n = n | 0x1;
  }
  return n;
}

int main(void) {

  char line[80];
  int l;

  printf("%d\n", sizeof(int32));

  printf("enter string<-");
  gets(line);
  l = strlen(line);
  printf("%d:%s:%08X\n", l, line, bin(line));

}