[CLN-list] Integer types in C

[Alexei Sheplyakov]

On Tue, Jan 19, 2010 at 01:15:21PM -0500, walsh.timothy at uqam.ca wrote:

> P.S. Is there a way in C to declare an integer to be 64 bits long?

In C89: no, one should resort to OS/compiler specific code. In C99: yes
(at least theoretically):

#include <stdint.h>
int64_t foo;

However, a) be careful to not confuse it with intptr_t, b) beware of 
non-conforming compilers (in particular, the m$ one is particularly guilty).

Best regards,
	Alexei

P.S.  Please use proper forums/mailing lists [1] for discussing generic
      questions about C/C++. Chances are that your question has already
      been answered.

      [1] for example, http://groups.google.com/group/comp.lang.c