Den 03-11-2010 20:02, Andrew Brunner skrev:
On a 64bit fpc compile, and 64bit system with pointers, which
interlocked exchange is best used? Aren't pointers on x64 64bit
pointers? Shouldn't we be using InterlockedExhange64 code to access
specific x64 swaps?
Thanks.
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function InterLockedExchange (var Target: Pointer;Source : Pointer) :
Pointer;
always maps directly to InterLockedExchange64 on 64bit and
InterLockedExchange on 32bit. See line 988 and 994 in systemh.inc
So you're fine using InterlockedExchange on pointers. The other version
with longint is always 32bit no matter the platform
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