int main(){
Num n1, n2;
scanf("%lld/%lld %lld/%lld", &n1.up, &n1.down, &n2.up, &n2.down);
stdPrint(n1);
printf(" + ");
stdPrint(n2);
printf(" = ");
stdPrint( plus(n1, n2) );
printf("\n");
stdPrint(n1);
printf(" - ");
stdPrint(n2);
printf(" = ");
stdPrint( minus(n1, n2) );
printf("\n");
stdPrint(n1);
printf(" * ");
stdPrint(n2);
printf(" = ");
stdPrint( multi(n1, n2) );
printf("\n");
stdPrint(n1);
printf(" / ");
stdPrint(n2);
printf(" = ");
if( n2.up==0 )
printf("Inf");
else
stdPrint( divide(n1, n2) );
return 0;
}
TypePtr standardRoutineCall (SymTableNodePtr routineIdPtr) {
long key = routineIdPtr->defn.info.routine.key;
long numParams = FunctionInfoTable[key].numParams;
switch (key) {
case RTN_RETURN:
stdReturn();
return(NULL);
case RTN_PRINT:
stdPrint();
return(NULL);
case RTN_CONCAT:
return(stdConcat());
case RTN_GET_STATE_HANDLE:
return(stdGetStateHandle());
default:
if (key >= NumStandardFunctions)
syntaxError(ABL_ERR_SYNTAX_UNEXPECTED_TOKEN);
if (numParams == 0) {
if (curToken == TKN_LPAREN)
syntaxError(ABL_ERR_SYNTAX_WRONG_NUMBER_OF_PARAMS);
}
else {
if (curToken == TKN_LPAREN)
getToken();
else
syntaxError(ABL_ERR_SYNTAX_WRONG_NUMBER_OF_PARAMS);
for (long i = 0; i < numParams; i++) {
TypePtr paramType = expression();
switch (FunctionInfoTable[key].params[i]) {
case PARAM_TYPE_ANYTHING:
break;
case PARAM_TYPE_CHAR:
if (paramType != CharTypePtr)
syntaxError(ABL_ERR_SYNTAX_INCOMPATIBLE_TYPES);
break;
case PARAM_TYPE_INTEGER:
if (paramType != IntegerTypePtr)
syntaxError(ABL_ERR_SYNTAX_INCOMPATIBLE_TYPES);
break;
case PARAM_TYPE_REAL:
if (paramType != RealTypePtr)
syntaxError(ABL_ERR_SYNTAX_INCOMPATIBLE_TYPES);
break;
case PARAM_TYPE_BOOLEAN:
if (paramType != BooleanTypePtr)
syntaxError(ABL_ERR_SYNTAX_INCOMPATIBLE_TYPES);
break;
case PARAM_TYPE_INTEGER_REAL:
if ((paramType != IntegerTypePtr) && (paramType != RealTypePtr))
syntaxError(ABL_ERR_SYNTAX_INCOMPATIBLE_TYPES);
break;
case PARAM_TYPE_CHAR_ARRAY:
if ((paramType->form != FRM_ARRAY) || (paramType->info.array.elementTypePtr != CharTypePtr))
syntaxError(ABL_ERR_SYNTAX_INCOMPATIBLE_TYPES);
break;
case PARAM_TYPE_INTEGER_ARRAY:
if ((paramType->form != FRM_ARRAY) || (paramType->info.array.elementTypePtr != IntegerTypePtr))
syntaxError(ABL_ERR_SYNTAX_INCOMPATIBLE_TYPES);
break;
case PARAM_TYPE_REAL_ARRAY:
if ((paramType->form != FRM_ARRAY) || (paramType->info.array.elementTypePtr != RealTypePtr))
syntaxError(ABL_ERR_SYNTAX_INCOMPATIBLE_TYPES);
break;
case PARAM_TYPE_BOOLEAN_ARRAY:
if ((paramType->form != FRM_ARRAY) || (paramType->info.array.elementTypePtr != BooleanTypePtr))
syntaxError(ABL_ERR_SYNTAX_INCOMPATIBLE_TYPES);
break;
}
if (i == (numParams - 1))
ifTokenGetElseError(TKN_RPAREN, ABL_ERR_SYNTAX_MISSING_RPAREN);
else
ifTokenGetElseError(TKN_COMMA, ABL_ERR_SYNTAX_MISSING_COMMA);
}
}
switch (FunctionInfoTable[key].returnType) {
case RETURN_TYPE_NONE:
return(NULL);
case RETURN_TYPE_INTEGER:
return(IntegerTypePtr);
case RETURN_TYPE_REAL:
return(RealTypePtr);
case RETURN_TYPE_BOOLEAN:
return(BooleanTypePtr);
}
}
return(NULL);
}