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Returning long long values

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Returning long long values

Subject: Returning long long values
From: David Dunham <email@hidden>
Date: Fri, 20 Feb 2009 16:20:34 -0800

I'm trying to implement a function like

__int64 ParseInt(char*);

which seems to work fine with Visual C++. With GCC I'm using signed long long, and within my function, things seem to work. But when I return a value, it changes (at least on Intel).

I tried to look up the ABI, and it implied that function values are returned in EAX. Isn't that a 32-bit register?

David Dunham
Voice/Fax: 206 783 7404             http://www.pensee.com/dunham/
Imagination is more important than knowledge. -- Albert Einstein

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