What are examples of syntax that is valid in both C and C++ but has different semantics? Put another way, what are examples of programs that produce different output when compiled with C and C++ compilers?
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sizeof('c')— 1 in C++, same assizeof(int)in C.
Jonathan Leffler
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That's not guaranteed to be different :-( – Kerrek SB Jan 19 '14 at 23:40
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@KerrekSB: For those few systems where `sizeof(int) == sizeof(char)`, which necessitates `CHAR_BITS > 8`. – Jonathan Leffler Jan 19 '14 at 23:57