示例#1
0
文件: A88.C 项目: ALANGUAGE/A2011
int expr() { int mode; int id1; int ixarr; int ids;
  if (istoken(T_CONST)) {doconst(); return 1; }
  mode=typeName(); /*0=V,1=*,2=&*/
  if (token=='(')  {docall1(); goto e1; }
  if (isreg()) goto e1;
  id1=searchname(); gettypes(id1); ids=signi;
  ixarr=0;
  if (istoken('[')) { ixarr=searchname(); expect(T_NAME); expect(']');  
    gettypes(ixarr);
    if (widthi==0) error1("Arrayindex muss int sein"); } 
  if (istoken(T_PLUSPLUS  )) {if(mode)error1("Nur var erlaubt");doinc();goto e1;}
  if (istoken(T_MINUSMINUS)) {if(mode)error1("Nur var erlaubt");dodec();goto e1;}
  if (istoken(T_PLUSASS   )) {compoundass("add", mode); goto e1;}
  if (istoken(T_MINUSASS  )) {compoundass("sub", mode); goto e1;}
  if (istoken(T_ANDASS    )) {compoundass("and", mode); goto e1;}
  if (istoken(T_ORASS     )) {compoundass("or" , mode); goto e1;}    
  if (istoken(T_MULASS    )) {error1("nicht implementiert");}
  if (istoken(T_DIVASS    )) {error1("nicht implementiert");}      
  if (istoken('=')) { isconst=expr(); 
     if (isconst) { if(mode==0) {prs("\n;++++ mov  "); printName(id1); 
       prs(", "); prnum(lexval);  } }
     doassign(mode, id1, ixarr); goto e1;} 
  dovar1(mode, "mov", ixarr, id1);
e1:    if (istoken('+')) rterm("add");
  else if (istoken('-')) rterm("sub" );
  else if (istoken('&')) rterm("and" );
  else if (istoken('|')) rterm("or" );  
  else if (istoken(T_LESSLESS)) rterm("shl");
  else if (istoken(T_GREATGREAT)) rterm("shr");  
  else if (istoken('*')) domul (ids);
  else if (istoken('/')) doidiv(ids);
  else if (istoken('%')) domod (ids);
  if (isrelational()) { rterm("cmp"); cmpneg(ids);}
  return 0;
}
示例#2
0
文件: 6.c 项目: wj32/Judge
int main(int argc, char *argv[])
{
    int n;
    int i;
    char *p;
    
    scanf("%d", &n);
    
    for (i = 0; i < n; i++)
    {
        scanf("%s", buffer);
        p = buffer;
        
        while (*p >= '0' && *p <= '9')
            p++;
        
        if (*p == '+' || *p == '-')
            doaddsub(buffer, (int)(p - buffer), p + 1, strlen(p + 1), *p);
        else if (*p == '*')
            domul(buffer, (int)(p - buffer), p + 1, strlen(p + 1));
        
        printf("\n");
    }
    
    return 0;
}