Incompatibility C++ <-> ANSI-C

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Article #3162

#3162

From: Tilo Koerbs
Date: Tue, 30 Jan 1996 15:45

20 lines
1216 bytes

Does the operator ?: an itegral promotion on its
second and third operand in C++?
I cannot find the answer in the ARM. (I think it says: no)

Consider this:
char x, y;
Which type has the following expression:
(a ? x : y)

In ANSI-C the type is clearly an 'int' (or 'unsigned').
But the type in C++ is 'char'???

Even different compilers have different results!
(Borland 3.1: 'char', SPARCompiler 4.0: 'int')



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From: mkt@isun04.inf.uni-jena.de (Tilo Koerbs)
Newsgroups: comp.std.c++
Subject: Incompatibility C++ <-> ANSI-C
Date: 30 Jan 1996 15:45:35 GMT
Organization: Lehrstuhl fuer Rechnerarchitektur- und kommunikation, FSU Jena
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