On 09/08/12 20:52, Vincent Lefevre wrote:
On 2012-08-09 15:37:05 +0200, David Brown wrote:
The size of an int depends on the target - gcc supports dozens of targets.
Most have 32-bit ints, but some have 16-bit ints and at least one has a
compile-time option to support 8-bit ints (though that goes against C
standards, and is deprecated on current builds). There are probably also
targets with 64-bit ints.
Couldn't the list of supported targets, with type size and other
similar information, be available on some web page?
There is probably some list in the gcc internals documents, and of
course you could see it in the source configuration files if you want to
go there. But you can get a fair idea from the manual on the
target-specific options, as every target will have a few options of
their own:
<http://gcc.gnu.org/onlinedocs/gcc/Submodel-Options.html>
This doesn't list the sizes of int or other target-specific information.
However, usually you know what target processor you are going to use,
and usually you know the basic size of the processor (if not, then you
really should find out before starting to use it!).
There are also a number of out-of-tree gcc ports.
