int main()
{
char* test_null = NULL;
char test[] = "abcdef";
char test2[] = "xabcdef";
printf( "%s\n", test);
printf( "%i\n", lengthString( test ));
printf( "%i\n", lengthString( test_null ));
printf( "%s\n", appendStringToString( test, test2 ));
char* connec = appendStringToString( test, test2 );
printf( "%i\n", lengthString( connec ));
printf( "%s\n", subString( test, 2, 4 ));
printf( "%s\n", subString( test, 6, 2 ));
printf( "%s\n", subString( test, 4, 4 ));
printf( "%s\n", subString( test, 1, lengthString( test )));
printf( "%s\n", subString( test, lengthString( test ), 1 ));
printf( "%s\n", invertString( invertString ( test )));
printf( "%s\n", invertString( test ));
}
static void reduce_two_constants(THandle handle)
{
if (handle.first[0].E.data_type == INT &&
handle.first[2].E.data_type == INT)
{
switch (handle.first[1].token->type)
{
case TT_multiply:
handle.first[0].E.int_ = handle.first[0].E.int_ * handle.first[2].E.int_;
break;
case TT_division:
if (handle.first[2].E.int_ == 0)
{
setError(ERR_DivisionByZero);
return;
}
handle.first[0].E.double_ = (double)handle.first[0].E.int_ / handle.first[2].E.int_;
break;
case TT_plus:
handle.first[0].E.int_ = handle.first[0].E.int_ + handle.first[2].E.int_;
break;
case TT_minus:
handle.first[0].E.int_ = handle.first[0].E.int_ - handle.first[2].E.int_;
break;
case TT_less:
handle.first[0].E.bool_ = handle.first[0].E.int_ < handle.first[2].E.int_;
break;
case TT_greater:
handle.first[0].E.bool_ = handle.first[0].E.int_ > handle.first[2].E.int_;
break;
case TT_lessOrEqual:
handle.first[0].E.bool_ = handle.first[0].E.int_ <= handle.first[2].E.int_;
break;
case TT_greaterOrEqual:
handle.first[0].E.bool_ = handle.first[0].E.int_ >= handle.first[2].E.int_;
break;
case TT_equality:
handle.first[0].E.bool_ = handle.first[0].E.int_ == handle.first[2].E.int_;
break;
case TT_inequality:
handle.first[0].E.bool_ = handle.first[0].E.int_ != handle.first[2].E.int_;
break;
default:
break;
}
}
else if (handle.first[0].E.data_type == INT &&
handle.first[2].E.data_type == DOUBLE)
{
switch (handle.first[1].token->type)
{
case TT_multiply:
handle.first[0].E.double_ = handle.first[0].E.int_ * handle.first[2].E.double_;
break;
case TT_division:
if (handle.first[2].E.double_ == 0)
{
setError(ERR_DivisionByZero);
return;
}
handle.first[0].E.double_ = handle.first[0].E.int_ / handle.first[2].E.double_;
break;
case TT_plus:
handle.first[0].E.double_ = handle.first[0].E.int_ + handle.first[2].E.double_;
break;
case TT_minus:
handle.first[0].E.double_ = handle.first[0].E.int_ - handle.first[2].E.double_;
break;
case TT_less:
handle.first[0].E.bool_ = handle.first[0].E.int_ < handle.first[2].E.double_;
break;
case TT_greater:
handle.first[0].E.bool_ = handle.first[0].E.int_ > handle.first[2].E.double_;
break;
case TT_lessOrEqual:
handle.first[0].E.bool_ = handle.first[0].E.int_ <= handle.first[2].E.double_;
break;
case TT_greaterOrEqual:
handle.first[0].E.bool_ = handle.first[0].E.int_ >= handle.first[2].E.double_;
break;
case TT_equality:
handle.first[0].E.bool_ = handle.first[0].E.int_ == handle.first[2].E.double_;
break;
case TT_inequality:
handle.first[0].E.bool_ = handle.first[0].E.int_ != handle.first[2].E.double_;
break;
default:
break;
}
}
else if (handle.first[0].E.data_type == DOUBLE &&
handle.first[2].E.data_type == INT)
{
switch (handle.first[1].token->type)
{
case TT_multiply:
handle.first[0].E.double_ = handle.first[0].E.double_ * handle.first[2].E.int_;
break;
case TT_division:
if (handle.first[2].E.int_ == 0)
{
setError(ERR_DivisionByZero);
return;
}
handle.first[0].E.double_ = handle.first[0].E.double_ / handle.first[2].E.int_;
break;
case TT_plus:
handle.first[0].E.double_ = handle.first[0].E.double_ + handle.first[2].E.int_;
break;
case TT_minus:
handle.first[0].E.double_ = handle.first[0].E.double_ - handle.first[2].E.int_;
break;
case TT_less:
handle.first[0].E.bool_ = handle.first[0].E.double_ < handle.first[2].E.int_;
break;
case TT_greater:
handle.first[0].E.bool_ = handle.first[0].E.double_ > handle.first[2].E.int_;
break;
case TT_lessOrEqual:
handle.first[0].E.bool_ = handle.first[0].E.double_ <= handle.first[2].E.int_;
break;
case TT_greaterOrEqual:
handle.first[0].E.bool_ = handle.first[0].E.double_ >= handle.first[2].E.int_;
break;
case TT_equality:
handle.first[0].E.bool_ = handle.first[0].E.double_ == handle.first[2].E.int_;
break;
case TT_inequality:
handle.first[0].E.bool_ = handle.first[0].E.double_ != handle.first[2].E.int_;
break;
default:
break;
}
}
else if (handle.first[0].E.data_type == DOUBLE &&
handle.first[2].E.data_type == DOUBLE)
{
switch (handle.first[1].token->type)
{
case TT_multiply:
handle.first[0].E.double_ = handle.first[0].E.double_ * handle.first[2].E.double_;
break;
case TT_division:
if (handle.first[2].E.double_ == 0)
{
setError(ERR_DivisionByZero);
return;
}
handle.first[0].E.double_ = handle.first[0].E.double_ / handle.first[2].E.double_;
break;
case TT_plus:
handle.first[0].E.double_ = handle.first[0].E.double_ + handle.first[2].E.double_;
break;
case TT_minus:
handle.first[0].E.double_ = handle.first[0].E.double_ - handle.first[2].E.double_;
break;
case TT_less:
handle.first[0].E.bool_ = handle.first[0].E.double_ < handle.first[2].E.double_;
break;
case TT_greater:
handle.first[0].E.bool_ = handle.first[0].E.double_ > handle.first[2].E.double_;
break;
case TT_lessOrEqual:
handle.first[0].E.bool_ = handle.first[0].E.double_ <= handle.first[2].E.double_;
break;
case TT_greaterOrEqual:
handle.first[0].E.bool_ = handle.first[0].E.double_ >= handle.first[2].E.double_;
break;
case TT_equality:
handle.first[0].E.bool_ = handle.first[0].E.double_ == handle.first[2].E.double_;
break;
case TT_inequality:
handle.first[0].E.bool_ = handle.first[0].E.double_ != handle.first[2].E.double_;
break;
default:
break;
}
}
else if (handle.first[0].E.data_type == BOOL &&
handle.first[2].E.data_type == BOOL)
{
switch (handle.first[1].token->type)
{
case TT_and:
handle.first[0].E.bool_ = handle.first[0].E.bool_ && handle.first[2].E.bool_;
break;
case TT_or:
handle.first[0].E.bool_ = handle.first[0].E.bool_ || handle.first[2].E.bool_;
break;
case TT_xor:
handle.first[0].E.bool_ = handle.first[0].E.bool_ ^ handle.first[2].E.bool_;
break;
case TT_less:
handle.first[0].E.bool_ = handle.first[0].E.bool_ < handle.first[2].E.bool_;
break;
case TT_greater:
handle.first[0].E.bool_ = handle.first[0].E.bool_ > handle.first[2].E.bool_;
break;
case TT_lessOrEqual:
handle.first[0].E.bool_ = handle.first[0].E.bool_ >= handle.first[2].E.bool_;
break;
case TT_greaterOrEqual:
handle.first[0].E.bool_ = handle.first[0].E.bool_ >= handle.first[2].E.bool_;
break;
case TT_equality:
handle.first[0].E.bool_ = handle.first[0].E.bool_ == handle.first[2].E.bool_;
break;
case TT_inequality:
handle.first[0].E.bool_ = handle.first[0].E.bool_ != handle.first[2].E.bool_;
break;
default:
break;
}
}
else if (handle.first[0].E.data_type == STRING &&
handle.first[2].E.data_type == STRING)
{
if (handle.first[1].token->type == TT_plus)
{
appendStringToString(handle.first[0].E.str, handle.first[2].E.str);
return;
}
int compare_result = strcmp(handle.first[0].E.str->data, handle.first[2].E.str->data);
switch (handle.first[1].token->type)
{
case TT_less:
handle.first[0].E.bool_ = compare_result < 0;
break;
case TT_greater:
handle.first[0].E.bool_ = compare_result > 0;
break;
case TT_lessOrEqual:
handle.first[0].E.bool_ = compare_result <= 0;
break;
case TT_greaterOrEqual:
handle.first[0].E.bool_ = compare_result >= 0;
break;
case TT_equality:
handle.first[0].E.bool_ = compare_result == 0;
break;
case TT_inequality:
handle.first[0].E.bool_ = compare_result != 0;
break;
default:
break;
}
}
else
{
setError(ERR_Reduction);
return;
}
}
