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From "Martin Sebor (JIRA)" <>
Subject [jira] Commented: (STDCXX-751) [HP aCC 6.16] Potential null pointer dereference in locale_stub.cpp
Date Thu, 03 Apr 2008 17:40:24 GMT


Martin Sebor commented on STDCXX-751:

I've been waiting to collect enough data to get a feel for what percentage of each of these
cadvise warnings is useful vs what percentage is bogus before deciding how to deal with it.
I can think of three options to silence the warnings (in the order of decreasing preference):

# change the code
# add a pair of [{{#pragma diag_suppress}}|]
20200 and {{#pragma diag_default 20200}} around the code
# silence all the warnings in this class via the [+W20200|]
# suppress all cadvise (and other) warnings by removing  the [+w|]
option from the command line

Do you feel like we have enough data to make the decision?

> [HP aCC 6.16] Potential null pointer dereference in locale_stub.cpp
> -------------------------------------------------------------------
>                 Key: STDCXX-751
>                 URL:
>             Project: C++ Standard Library
>          Issue Type: Sub-task
>          Components: 20. General Utilities
>    Affects Versions: 4.2.0
>         Environment: $ uname -sr && aCC -V
> HP-UX B.11.31
> aCC: HP C/aC++ B3910B A.06.16 [Nov 26 2007]
>            Reporter: Scott (Yu) Zhong
>            Assignee: Travis Vitek
>             Fix For: 4.2.1
>   Original Estimate: 2h
>          Time Spent: 2h
>  Remaining Estimate: 0h
> aCC -c    -mt -I/amd/devco/scottz/stdcxx/4.2.x/include -I/build/scottz/12d/include  -AA
 +O2  +DD64 +w +W392 +W655 +W684 +W818 +W819 +W849 +W2193
> +W2236 +W2261 +W2340 +W2401 +W2487 +W4227 +W4229 +W4231 +W4235 +W4237 +W4249 +W4255 +W4272
+W4284 +W4285 +W4286   /amd/devco/scottz/stdcxx/4.2.x/u
> til/locale_stub.cpp
> "/amd/devco/scottz/stdcxx/4.2.x/util/locale_stub.cpp", line 62, procedure main: warning
#20200-D: Potential null pointer dereference through  return of call to strrchr is detected
(null definition:/amd/packages/mdx/hpux/ia64/aCC/6_16/opt/aCC/include_std/cstring, line 59)

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