Add explicit namespace for std.

[ghost]

Needed to compile vs Pythia8.212 since "using namespace std" is no longer in one of the Pythia8 headers.

[ghost]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.

[cmsbuild]

A new Pull Request was created by @Degano (Alessandro Degano) for CMSSW_7_6_X.

Add explicit namespace for std.

It involves the following packages:

FastSimulation/ParticleDecay
GeneratorInterface/Pythia8Interface

@vciulli, @civanch, @covarell, @lveldere, @ssekmen, @mdhildreth, @cmsbuild, @thuer, @bendavid, @govoni can you please review it and eventually sign? Thanks.
@Martin-Grunewald, @matt-komm, @mkirsano this is something you requested to watch as well.
You can sign-off by replying to this message having '+1' in the first line of your reply.
You can reject by replying to this message having '-1' in the first line of your reply.
If you are a L2 or a release manager you can ask for tests by saying 'please test' in the first line of a comment.
@Degano you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

[lveldere]

+1

[bendavid]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_6_X IBs after it passes the integration tests. This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @smuzaffar

[cmsbuild]

+1
Tested at: 6c45a93
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-11540/8464/summary.html

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:
21624b1
2c46ba4
a656216
f842f73
2dba692
dcf1316
87e62b3
You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-11540/8464/git-log-recent-commits
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-11540/8464/git-merge-result

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_6_X IBs (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @smuzaffar

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-11540/8464/summary.html

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_6_X IBs (tests are also fine). This pull request requires discussion in the ORP meeting before it's merged. @davidlange6, @Degano, @smuzaffar

[davidlange6]

+1