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Diffstat (limited to 'security/sandbox/chromium/build/buildflag.h')
| -rw-r--r-- | security/sandbox/chromium/build/buildflag.h | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/security/sandbox/chromium/build/buildflag.h b/security/sandbox/chromium/build/buildflag.h deleted file mode 100644 index 283f5bce4..000000000 --- a/security/sandbox/chromium/build/buildflag.h +++ /dev/null @@ -1,47 +0,0 @@ -// Copyright 2015 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#ifndef BUILD_BUILDFLAG_H_ -#define BUILD_BUILDFLAG_H_ - -// These macros un-mangle the names of the build flags in a way that looks -// natural, and gives errors if the flag is not defined. Normally in the -// preprocessor it's easy to make mistakes that interpret "you haven't done -// the setup to know what the flag is" as "flag is off". Normally you would -// include the generated header rather than include this file directly. -// -// This is for use with generated headers. See build/build_header.gni. - -// This dance of two macros does a concatenation of two preprocessor args using -// ## doubly indirectly because using ## directly prevents macros in that -// parameter from being expanded. -#define BUILDFLAG_CAT_INDIRECT(a, b) a ## b -#define BUILDFLAG_CAT(a, b) BUILDFLAG_CAT_INDIRECT(a, b) - -// Accessor for build flags. -// -// To test for a value, if the build file specifies: -// -// ENABLE_FOO=true -// -// Then you would check at build-time in source code with: -// -// #include "foo_flags.h" // The header the build file specified. -// -// #if BUILDFLAG(ENABLE_FOO) -// ... -// #endif -// -// There will no #define called ENABLE_FOO so if you accidentally test for -// whether that is defined, it will always be negative. You can also use -// the value in expressions: -// -// const char kSpamServerName[] = BUILDFLAG(SPAM_SERVER_NAME); -// -// Because the flag is accessed as a preprocessor macro with (), an error -// will be thrown if the proper header defining the internal flag value has -// not been included. -#define BUILDFLAG(flag) (BUILDFLAG_CAT(BUILDFLAG_INTERNAL_, flag)()) - -#endif // BUILD_BUILDFLAG_H_ |