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| author | dcheng@chromium.org <dcheng@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-04-09 05:45:17 +0000 |
|---|---|---|
| committer | dcheng@chromium.org <dcheng@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-04-09 05:45:17 +0000 |
| commit | e59558b78e8c6a1b0bd916a724724b638c3c91b6 (patch) | |
| tree | 712268a7e9e1cd552f309d89641b2bed5ad06322 /base/sys_info_posix.cc | |
| parent | 31fcd34da3797bc49160620ef8c94a38652c0587 (diff) | |
| download | chromium_src-e59558b78e8c6a1b0bd916a724724b638c3c91b6.zip chromium_src-e59558b78e8c6a1b0bd916a724724b638c3c91b6.tar.gz chromium_src-e59558b78e8c6a1b0bd916a724724b638c3c91b6.tar.bz2 | |
Rewrite std::string("") to std::string(), Linux edition.
This patch was generated by running the empty_string clang tool
across the Chromium Linux compilation database. Implicitly or
explicitly constructing std::string() with a "" argument is
inefficient as the caller needs to emit extra instructions to
pass an argument, and the constructor needlessly copies a byte
into internal storage. Rewriting these instances to simply call
the default constructor appears to save ~14-18 kilobytes on an
optimized release build.
BUG=none
Review URL: https://codereview.chromium.org/13145003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@193020 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'base/sys_info_posix.cc')
| -rw-r--r-- | base/sys_info_posix.cc | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/base/sys_info_posix.cc b/base/sys_info_posix.cc index 854f123..57b7af6 100644 --- a/base/sys_info_posix.cc +++ b/base/sys_info_posix.cc @@ -55,7 +55,7 @@ std::string SysInfo::OperatingSystemName() { struct utsname info; if (uname(&info) < 0) { NOTREACHED(); - return ""; + return std::string(); } return std::string(info.sysname); } @@ -67,7 +67,7 @@ std::string SysInfo::OperatingSystemVersion() { struct utsname info; if (uname(&info) < 0) { NOTREACHED(); - return ""; + return std::string(); } return std::string(info.release); } @@ -78,7 +78,7 @@ std::string SysInfo::OperatingSystemArchitecture() { struct utsname info; if (uname(&info) < 0) { NOTREACHED(); - return ""; + return std::string(); } std::string arch(info.machine); if (arch == "i386" || arch == "i486" || arch == "i586" || arch == "i686") { |