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path: root/ShellPkg/Include/Protocol/EfiShellEnvironment2.h
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2026-02-24ShellPkg: Replace include guards with #pragma onceMichael Kubacki1-4/+1
Replace traditional `#ifndef`/`#define`/`#endif` include guards with `#pragma` once. `#pragma once` is a widely supported preprocessor directive that prevents header files from being included multiple times. It is supported by all toolchains used to build edk2: GCC, Clang/LLVM, and MSVC. Compared to macro-based include guards, `#pragma once`: - Eliminates the risk of macro name collisions or copy/paste errors where two headers inadvertently use the same guard macro. - Eliminate inconsistency in the way include guard macros are named (e.g., some files use `__FILE_H__`, others use `FILE_H_`, etc.). - Reduces boilerplate (three lines replaced by one). - Avoids polluting the macro namespace with guard symbols. - Can improve build times as the preprocessor can skip re-opening the file entirely, rather than re-reading it to find the matching `#endif` ("multiple-include optimization"). - Note that some compilers may already optimize traditional include guards, by recognzining the idiomatic pattern. This change is made acknowledging that overall portability of the code will technically be reduced, as `#pragma once` is not part of the C/C++ standards. However, this is considered acceptable given: 1. edk2 already defines a subset of supported compilers in BaseTools/Conf/tools_def.template, all of which have supported `#pragma once` for over two decades. 2. There have been concerns raised to the project about inconsistent include guard naming and potential macro collisions. Approximate compiler support dates: - MSVC: Supported since Visual C++ 4.2 (1996) - GCC: Supported since 3.4 (2004) (http://gnu.ist.utl.pt/software/gcc/gcc-3.4/changes.html) - Clang (LLVM based): Since initial release in 2007 Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
2023-12-08ShellPkg: Fix typosPage Chen1-5/+5
begining->beginning dirve->drive duplicat->duplicate fuly->fully Funciton->Function Functino->Function optioanl->optional poitners->pointers rountine->routine sucessful->successful sucessfully->successfully Signed-off-by: Page Chen <paiching_chen@apple.com> Cc: Zhichao Gao <zhichao.gao@intel.com> Cc: Andrew Fish <afish@apple.com> Message-Id: <829d2bed2a848229d719d7ae7b64ef1a47782720.1699557986.git.paiching_chen@apple.com> Reviewed-by: Zhichao Gao <zhichao.gao@intel.com>
2021-12-07ShellPkg: Apply uncrustify changesMichael Kubacki1-128/+127
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the ShellPkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Ray Ni <ray.ni@intel.com>
2019-04-09ShellPkg: Replace BSD License with BSD+Patent LicenseMichael D Kinney1-7/+1
https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Ray Ni <ray.ni@intel.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com>
2016-11-15ShellPkg: Fix typos in comments and variablesGary Lin1-1/+1
- funciton -> function - paramter -> parameter - supresses -> suppresses - Seperator -> Separator - permenant -> permanent Reviewed-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Gary Lin <glin@suse.com>
2015-07-08ShellPkg: Fix typo of 'determines' in ShellPkg.Bruce Cran1-3/+3
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Bruce Cran <bruce@cran.org.uk> Reviewed-by: Qiu Shumin <shumin.qiu@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17868 6f19259b-4bc3-4df7-8a09-765794883524
2011-09-02Refine comments and two code style.ydong101-26/+26
Signed-off-by: ydong10 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12263 6f19259b-4bc3-4df7-8a09-765794883524
2010-09-14udk2010.up2.shell initial release.jcarsey1-127/+129
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10874 6f19259b-4bc3-4df7-8a09-765794883524
2010-01-25fixed license header / copyright date on all files.jcarsey1-135/+135
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9810 6f19259b-4bc3-4df7-8a09-765794883524
2010-01-12updating comments mostly. also added some new lib functions.jcarsey1-204/+201
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9710 6f19259b-4bc3-4df7-8a09-765794883524
2009-11-20comment repairs.jcarsey1-28/+28
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9460 6f19259b-4bc3-4df7-8a09-765794883524
2009-11-18Fix incorrect copyright formatqhuang81-1/+1
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9448 6f19259b-4bc3-4df7-8a09-765794883524
2009-11-18Fix GUID format qhuang81-2/+2
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9444 6f19259b-4bc3-4df7-8a09-765794883524
2009-06-24git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8633 ↵jcarsey1-1/+1
6f19259b-4bc3-4df7-8a09-765794883524
2009-06-15Fix ShellPkg build errors for UNIXGCC toolchain.jljusten1-3/+3
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8555 6f19259b-4bc3-4df7-8a09-765794883524
2009-05-11fixed to build under IPF.jcarsey1-8/+8
Refactored some commands into FileHandleLib since they are used in many binaries. Added .h for GUID that was missing. Added PCD for initialization of shell apps and shell itself in shell library interaction. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8295 6f19259b-4bc3-4df7-8a09-765794883524
2009-05-07First (Alpha) release of ShellPkgjcarsey1-0/+976
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8256 6f19259b-4bc3-4df7-8a09-765794883524
generated by cgit v1.2.3 (git 2.39.0) at 2026-09-15 20:56:55 +0300