c - 单元测试 : Compare Expected Result with hexadezimal

Question

我想将一个十六进制与一个十六进制进行比较并显示是否相同。例如:

decimal = 255 
ExpResult = FF 
Hex[x] = FF --> true

Answer 1

我给你写了一个程序，它会比较你的程序的两个参数，并输出它们是否匹配......希望它会有所帮助；)

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

static char *malloc_hexa(unsigned int num)
{
  int       len = 0;

  if (num == 0)
    len = 1;
  while (num > 0)
    {
      num /= 16;
      len++;
    }
  return (malloc(sizeof(char) * (len + 1)));
}

int     main(int ac, char **av)
{
  char      *tmp = NULL;
  unsigned int  num = 0;

  if (ac != 3)
    {
      printf("Use: ./test [number] [Hexa]\n");
      return (1);
    }
  num = (unsigned int)atoi(av[1]);
  if (!(tmp = malloc_hexa(num)))
    return (1);
  if (sprintf(tmp, "%X", num) <= 0)
    return (1);
  if (!strcmp(tmp, av[2]))
    printf("match: %s / %s\n", tmp, av[2]);
  else
    printf("no match: %s / %s\n", tmp, av[2]);
  free(tmp);
  return (0);
}