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char *strcat (char *dst, const char *src)
{
  char *p = dst;
  while (*p)
    p++;
  while ((*p++ = *src++))
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  return dst;
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char** t;
main()
{
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    char** t1;
    sprintf(c,"%d",t);
    printf("t=%s---\n",c);
    if(strcmp(c,"0")!=0)
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