On 01/31/2011 01:16 PM, Ian Lance Taylor wrote:
Jonathan Wakely<jwakely.gcc@xxxxxxxxx> writes:
On 30 January 2011 20:32, Enrico Weigelt wrote:
I'll have to add --std=c++0x parameter - does that have any other
side effects I should be aware of ?
-std=c++0x enables lots of things, but if you don't use e.g. variadic
templates or the decltype keyword you shouldn't notice. The only
thing I can think of affecting valid code is changing the meaning of
the 'auto' keyword, which noone sensible uses anyway.
Using -std=c++0x will cause libstdc++ to build in C++0x mode, which last
time I checked was not strictly ABI compatible with libstdc++ not built
in C++0x mode. So if you link with a dynamic libstdc++.so, you may get
in trouble in some complex scenarios.
I don't think the OP was asking about building GCC itself using
--std=c++0x, just his programs. In that situation, presumably his
libstdc++ was built by his distro and has the 'standard' ABI, right?
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Kevin P. Fleming
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