[beast: 53/57] SFI: cxxaux: add BSE_CPP_PASTE2()

[Tim Janik <timj src gnome org>]

commit 9476c9b11b900bff96f5bee8a164e3cc6a4591ac
Author: Tim Janik <timj gnu org>
Date:   Wed Jul 19 03:11:08 2017 +0200

    SFI: cxxaux: add BSE_CPP_PASTE2()
    
    Signed-off-by: Tim Janik <timj gnu org>

 sfi/cxxaux.hh |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/sfi/cxxaux.hh b/sfi/cxxaux.hh
index de25dc1..dab0516 100644
--- a/sfi/cxxaux.hh
+++ b/sfi/cxxaux.hh
@@ -40,6 +40,8 @@ typedef vector<String> StringVector;    ///< Convenience alias for a std::vector
 // == Utility Macros ==
 #define BSE_CPP_STRINGIFY(s)    BSE_CPP_STRINGIFY_ (s)                  ///< Convert macro argument into a C 
const char*.
 #define BSE_CPP_STRINGIFY_(s)   #s                                      // Indirection helper, required to 
expand macros like __LINE__
+#define BSE_CPP_PASTE2_(a,b)    a ## b                                  // Indirection helper, required to 
expand macros like __LINE__
+#define BSE_CPP_PASTE2(a,b)     BSE_CPP_PASTE2_ (a,b)                   ///< Paste two macro arguments into 
one C symbol name
 #define BSE_ISLIKELY(expr)      __builtin_expect (bool (expr), 1)       ///< Compiler hint to optimize for 
@a expr evaluating to true.
 #define BSE_UNLIKELY(expr)      __builtin_expect (bool (expr), 0)       ///< Compiler hint to optimize for 
@a expr evaluating to false.
 #define BSE_ABS(a)              ((a) < 0 ? -(a) : (a))                  ///< Yield the absolute value of @a 
a.