[fpc-pascal] StrToInt is using ShortString buffer?

Michael Van Canneyt michael at freepascal.org
Wed Jan 12 15:13:24 CET 2022

On Tue, 11 Jan 2022, Alexey Tor. via fpc-pascal wrote:

> Hello. As I see in the commit 
> https://gitlab.com/freepascal.org/fpc/source/-/commit/beecbf1581a986f544fde77aa428e05c21a35f6f
> StrToInt always uses ShortString buffer:
> *Function fpc_Val_SInt_ShortStr(DestSize: SizeInt; Const S: ShortString; out 
> Code: ValSInt): ValSInt;*
> If it is correct: Can we skip using ShortString buffer and have e.g. 'common' 
> PChar base function for AnsiString/ShortString?

It's not that easy.

>From the definition you can see it is a compilerproc function, meaning that the 
compiler writes direct calls to this. 
To change the signature of the function means the compiler itself also must be changed.


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