From: "Andy Fung" Newsgroups: comp.os.msdos.djgpp Subject: Re: 64 bit integers ??!? Date: Mon, 19 Jan 1998 13:47:35 -0500 Organization: Concentric Internet Services Lines: 13 Message-ID: <6a074r$gu4@examiner.concentric.net> References: <69tlsd$lk2 AT examiner DOT concentric DOT net> <34C34232 DOT 1DC AT oce DOT nl> NNTP-Posting-Host: ts008d47.hil-ny.concentric.net To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Precedence: bulk >It is indeed possible. Use long long int. You can try following code: > >main() { > printf("%d\n", sizeof(long long int)); > } Strange, since an int is 32bit, I wonder 64bit integer are not declared at long int instead. Also, is it possible to use shifting of more than 32bits. I.E. : mynum << 48;