[fpc-devel] StrPos giving a access violation

Micha Nelissen micha at neli.hopto.org
Mon Dec 12 13:30:00 CET 2005

Graeme Geldenhuys wrote:
> Taken from Delphi 7 help:
> Mixing Delphi strings and null-terminated strings
> * You can also use Pointer(S) to cast a long string to an untyped 
> pointer. But if S is empty, the typecast returns nil.
> * PChar(S) always returns a pointer to a memory block; if S is empty, a 
> pointer to #0 is returned.

Thanks, that is very ugly. That means that PChar(Pointer(MyStr)) is not 
the same as PChar(MyStr) which is not very pascalish IMHO, but ok.

I can understand that PChar(MyStr) to always return a valid pointer is a 
desirable property of course, but why not use a function instead that 
does this ? Useless question, of course.


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