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Title:

Unicode tip #11 - Stringchecks Off

Author: Bob Swart
Posted: 12/18/2008 5:21:55 PM (GMT+1)
Content:

A final Unicode tip concerns the compatibility of UnicodeStrings between Delphi and C++Builder.
The UnicodeString in Delphi can containUnicode or ANSI data at any given time, and in order to ensure that C++Builder code can correctly index the items, a hidden call to UniqueStringX is being made. This is only needed for C++Builder code that uses a Delphi package for example.

If you only create Delphi stand-alone applications, you can avoid these calls with the STRINGCHECKS OFF compiler option:

(*$STRINGCHECKS OFF*)
Apart from this compiler option, you can also pass this option to the command-line compiler using the “—string-checks:off” option.
The resulting executable will be slightly faster, but no longer compatible with C++Builder.

This tip is the 11th in a series of Unicode tips taken from my Delphi 2009 Development Essentials book published earlier this month on Lulu.com.

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