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https://issues.apache.org/jira/browse/THRIFT-1398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13249596#comment-13249596
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Hudson commented on THRIFT-1398:
--------------------------------
Integrated in Thrift #431 (See [https://builds.apache.org/job/Thrift/431/])
THRIFT-1398 Compiler warning on generated code (Multiface kills -Wall
-Werror on gcc 4.6.1)
Patch: Nevo Hed (Revision 1311066)
Result = SUCCESS
roger : http://svn.apache.org/viewvc/?view=rev&rev=1311066
Files :
* /thrift/trunk/compiler/cpp/src/generate/t_cpp_generator.cc
> Compiler warning on generated code (Multiface kills -Wall -Werror on gcc
> 4.6.1)
> -------------------------------------------------------------------------------
>
> Key: THRIFT-1398
> URL: https://issues.apache.org/jira/browse/THRIFT-1398
> Project: Thrift
> Issue Type: Bug
> Components: C++ - Compiler
> Affects Versions: 0.6, 0.7, 0.8, 0.9
> Environment: g++ v4.6.1, with all warnings enabled -Wall, using the
> purist "treat warnings as errors" -Werror flag. No optimization flags
> Reporter: Nevo Hed
> Assignee: Nevo Hed
> Attachments: THRIFT-1398.patch
>
>
> I use an older version of g++ (4.1.2) but some of my fellow team members who
> are using a more recent version (4.6.1)
> they are reporting that (when used with '-Wall') g++, justifiably complains
> about possible lack of return
> int32_t calculate(const int32_t logid, const Work& w) {
> size_t sz = ifaces_.size();
> for (size_t i = 0; i < sz; ++i) {
> if (i == sz - 1) {
> return ifaces_[i]->calculate(logid, w);
> } else {
> ifaces_[i]->calculate(logid, w);
> }
> }
> }
> Though a human reading this code can see that the last loop execution results
> in a return, the compiler can't
> "error: control reaches end of non-void function [-Werror=return-type]"
> IMHO we should have a single return at the end of the function
> I would add a generation-time option to suppress multiface if that seems
> reasonable
> At this time we find that we need to either disable the warning or up the
> optimization (or both?)
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