c/3463: A problem with long long ints

[William Scott]

>Number:         3463
>Category:       c
>Synopsis:       A problem with long long ints
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          wrong-code
>Submitter-Id:   net
>Arrival-Date:   Thu Jun 28 08:36:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     William Scott
>Release:        3.0
>Organization:
Division of Informatics, The University of Edinburgh
>Environment:
System: Linux barbecued.dcs.ed.ac.uk 2.2.16_public-3.dcs.9 #1 Wed Jan 24 07:30:43 GMT 2001 i686 unknown
Architecture: i686

	
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ./configure --prefix=/useful/risky/wims/
>Description:
	When trying to add 1 to an unsigned long long int I get 0 instead of a large number
	
>How-To-Repeat:
	unsigned long long int sum;
	sum = 0xffffffff + 0x01;
	printf("%llu",sum);

	result should be 4294967296 but comes out as 0
	
>Fix:
	
>Release-Note:
>Audit-Trail:
>Unformatted: