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* c/8804: gcc fails to warn when function omits a return statement
@ 2002-12-03 14:16 gisli.ottarsson
0 siblings, 0 replies; 2+ messages in thread
From: gisli.ottarsson @ 2002-12-03 14:16 UTC (permalink / raw)
To: gcc-gnats
>Number: 8804
>Category: c
>Synopsis: gcc fails to warn when function omits a return statement
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Tue Dec 03 14:16:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator: Gisli Ottarsson
>Release: gcc (GCC) 3.2 20020822 (Red Hat Linux Rawhide 3.2-4)
>Organization:
>Environment:
>Description:
The following program, which contains an int
function which fails to return a value, compiles
without a warning, even with the -pedantic flag.
The program illustrates a form of programmer brain-
damage where the programmer has neglected to type
the 'return' keyword. This bug can be extremely
difficult to find but many thankfully, many other
compilers will catch this and issue a warning/error.
For instance, SGI's compiler warns that: "Non-void
function "foo" (declared at line 1) should return a
value."
int foo()
{
3;
}
int main()
{
return foo();
}
Please modify gcc so that it issues a warning when it
encounters such mistakes.
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: c/8804: gcc fails to warn when function omits a return statement
@ 2002-12-03 14:23 paolo
0 siblings, 0 replies; 2+ messages in thread
From: paolo @ 2002-12-03 14:23 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, gisli.ottarsson, nobody, paolo
Synopsis: gcc fails to warn when function omits a return statement
Responsible-Changed-From-To: unassigned->paolo
Responsible-Changed-By: paolo
Responsible-Changed-When: Tue Dec 3 14:23:18 2002
Responsible-Changed-Why:
Analyzed.
State-Changed-From-To: open->closed
State-Changed-By: paolo
State-Changed-When: Tue Dec 3 14:23:18 2002
State-Changed-Why:
Add -Wall (or just -Wreturn-type) to your command line.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8804
^ permalink raw reply [flat|nested] 2+ messages in thread
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2002-12-03 14:16 c/8804: gcc fails to warn when function omits a return statement gisli.ottarsson
2002-12-03 14:23 paolo
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