FAQ-1202 What formatting character do I use to create a string containing large numbers ?


FAQ-1202 What formatting character do I use to create a string containing large numbers ?

» Symbian OS » Developer Knowledgebase » FAQ-1202

Classification:	C++	Category:	Development
Created:	01/06/2005	Modified:	01/17/2005
Number:	FAQ-1202
Platform:	Not Applicable

Question:
Could anyone tell me which formatting character to use when creating strings containing large numbers. %d only works for TUint32 or smaller.

For example:
TInt64 totalSize = TotalMemSize();
HBufC* descriptionTxt = HBufC::NewLC(35 + unitTxt->Length());
descriptionTxt->Des().AppendFormat(_L("Total size is %d %S"), (TUint32)totalSize, unitTxt);

If totalSize is not cast to a TUint32 then this will raise a USER 13 panic.

Answer:
You need to use the L prefix on the formatting character.

For example %Lu or %Ld can be used for unsigned or signed large integers respectively.
This is not documented in the Developer Library.