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| author | Yuri Kunde Schlesner <yuriks@yuriks.net> | 2015-01-11 16:32:31 +0100 |
|---|---|---|
| committer | Yuri Kunde Schlesner <yuriks@yuriks.net> | 2015-01-30 14:47:03 +0100 |
| commit | fc11aff9559da4725037c21f7a4732f5f009d975 (patch) | |
| tree | f1034c4fd029f4e4867fe2b5b15352f87dbbd9b7 | |
| parent | Additions to ResultVal to make it more convenient to use. (diff) | |
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| -rw-r--r-- | src/common/common_funcs.h | 4 | ||||
| -rw-r--r-- | src/common/scope_exit.h | 4 |
2 files changed, 7 insertions, 1 deletions
diff --git a/src/common/common_funcs.h b/src/common/common_funcs.h index c2750a63c..229eb74c9 100644 --- a/src/common/common_funcs.h +++ b/src/common/common_funcs.h @@ -31,6 +31,10 @@ template<> struct CompileTimeAssert<true> {}; #define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0])) +/// Textually concatenates two tokens. The double-expansion is required by the C preprocessor. +#define CONCAT2(x, y) DO_CONCAT2(x, y) +#define DO_CONCAT2(x, y) x ## y + #ifndef _MSC_VER #include <errno.h> diff --git a/src/common/scope_exit.h b/src/common/scope_exit.h index 263beaf0e..77dcbaa22 100644 --- a/src/common/scope_exit.h +++ b/src/common/scope_exit.h @@ -4,6 +4,8 @@ #pragma once +#include "common/common_funcs.h" + namespace detail { template <typename Func> struct ScopeExitHelper { @@ -34,4 +36,4 @@ namespace detail { * } * \endcode */ -#define SCOPE_EXIT(body) auto scope_exit_helper_##__LINE__ = detail::ScopeExit([&]() body) +#define SCOPE_EXIT(body) auto CONCAT2(scope_exit_helper_, __LINE__) = detail::ScopeExit([&]() body) |