Show: Delphi C++
Display Preferences

do (C++)

From RAD Studio
Jump to: navigation, search

Go Up to Keywords, Alphabetical Listing Index


Category

Statements

Syntax

do <statement> while ( <condition> );

Description

The do statement executes until the condition becomes false.

<statement> is executed repeatedly as long as the value of <condition> remains true.

Since the conditon tests after each the loop executes the <statement>, the loop will execute at least once.


Example

This example illustrates the use of the keyword do.

void __fastcall TForm1::Button1Click(TObject *Sender)
{
 TSearchRec sr;
 int iAttributes = 0;
 StringGrid1->RowCount = 1;
 iAttributes |= faReadOnly * CheckBox1->Checked;
 iAttributes |= faHidden * CheckBox2->Checked;
 iAttributes |= faSysFile * CheckBox3->Checked;
 iAttributes |= faVolumeID * CheckBox4->Checked;
 iAttributes |= faDirectory * CheckBox5->Checked;
 iAttributes |= faArchive * CheckBox6->Checked;
 iAttributes |= faAnyFile * CheckBox7->Checked;
 StringGrid1->RowCount = 0;
 if (FindFirst(Edit1->Text, iAttributes, sr) == 0)
 {
   do
   {
     if ((sr.Attr & iAttributes) == sr.Attr)
     {
       StringGrid1->RowCount = StringGrid1->RowCount + 1;
       StringGrid1->Cells[1][StringGrid1->RowCount-1] = sr.Name;
       StringGrid1->Cells[2][StringGrid1->RowCount-1] = IntToStr(sr.Size);
     }
   } while (FindNext(sr) == 0);
   FindClose(sr);
 }
}

See Also

Personal tools
RAD Studio 10.2 Tokyo
In other languages
Previous Versions
Assistance