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Userland: Change static const variables to static constexpr

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`static const` variables can be computed and initialized at run-time
during initialization or the first time a function is called. Change
them to `static constexpr` to ensure they are computed at
compile-time.

This allows some removal of `strlen` because the length of the
`StringView` can be used which is pre-computed at compile-time.
This commit is contained in:
Lenny Maiorani 2022-03-13 16:09:41 -06:00 • committed by Andreas Kling
parent 31515a9147
commit f912a48315
Notes: sideshowbarker 2024-07-17 17:10:24 +09:00
23 changed files with 111 additions and 82 deletions
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10
Userland/Utilities/lspci.cpp
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -9,6 +10,7 @@
#include <AK/JsonObject.h>
#include <AK/String.h>
#include <AK/StringUtils.h>
#include <AK/StringView.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/DirIterator.h>
#include <LibCore/File.h>
@ -19,9 +21,9 @@
static bool flag_show_numerical = false;
static bool flag_verbose = false;
static const char* format_numerical = "{:04x}:{:02x}:{:02x}.{} {}: {}:{} (rev {:02x})";
static const char* format_textual = "{:04x}:{:02x}:{:02x}.{} {}: {} {} (rev {:02x})";
static const char* format_region = "\tBAR {}: {} region @ {:#x}";
static constexpr StringView format_numerical = "{:04x}:{:02x}:{:02x}.{} {}: {}:{} (rev {:02x})";
static constexpr StringView format_textual = "{:04x}:{:02x}:{:02x}.{} {}: {} {} (rev {:02x})";
static constexpr StringView format_region = "\tBAR {}: {} region @ {:#x}";
static u32 read_hex_string_from_bytebuffer(ByteBuffer const& buf)
{
@ -50,7 +52,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
args_parser.add_option(flag_verbose, "Show verbose info on devices", "verbose", 'v');
args_parser.parse(arguments);
const char* format = flag_show_numerical ? format_numerical : format_textual;
auto const format = flag_show_numerical ? format_numerical : format_textual;
RefPtr<PCIDB::Database> db;
if (!flag_show_numerical) {