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| author | dcheng@chromium.org <dcheng@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-04-09 08:46:45 +0000 |
|---|---|---|
| committer | dcheng@chromium.org <dcheng@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-04-09 08:46:45 +0000 |
| commit | 007b3f812fc9c989fb99d4a668d8bd9c7807ad81 (patch) | |
| tree | 43e69dd0f4e4dbbe68afb6319fa18cee07a4be64 /base/sys_info_posix.cc | |
| parent | 2bde7e94eb8f402839145e48924391a5c645a554 (diff) | |
| download | chromium_src-007b3f812fc9c989fb99d4a668d8bd9c7807ad81.zip chromium_src-007b3f812fc9c989fb99d4a668d8bd9c7807ad81.tar.gz chromium_src-007b3f812fc9c989fb99d4a668d8bd9c7807ad81.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
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=193020
Review URL: https://codereview.chromium.org/13145003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@193040 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") { |