64bit integer literals on 32bit platforms

Marc Glisse marc.glisse at inria.fr
Thu Oct 29 21:13:18 UTC 2015

On Thu, 29 Oct 2015, Paul Koning wrote:

>> We are using gmp in a library project that is supposed to work on both
>> 32bit and 64bit platforms.
>> However, we ran into problem when we used integer literals that are
>> larger than 2^32 (say 10000000000).
> That by itself will get you warning messages, at least in more recent 
> versions of GCC, because you have a literal too large for its type.  If 
> you meant long long, you need the LL suffix.

No you don't. The compiler automatically selects a type large enough if 
there is one.

Marc Glisse

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