do (C++)
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Category
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); } }