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| author | Peter Eisentraut <peter_e@gmx.net> | 2016-08-30 12:00:00 -0400 |
|---|---|---|
| committer | Peter Eisentraut <peter_e@gmx.net> | 2017-12-26 10:45:07 -0500 |
| commit | a2c8e5cfdb9d82ae6d4bb8f37a4dc7cbeca63ec1 (patch) | |
| tree | 881ab6b921979a3f5782324973eff4eda77f36fd | |
| parent | 0689dc3a235a12c58910fba325f0150979d0c81f (diff) | |
| download | postgresql-a2c8e5cfdb9d82ae6d4bb8f37a4dc7cbeca63ec1.tar.gz postgresql-a2c8e5cfdb9d82ae6d4bb8f37a4dc7cbeca63ec1.zip | |
Add support for static assertions in C++
This allows modules written in C++ to use or include header files that
use StaticAssertStmt() etc.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
| -rw-r--r-- | src/include/c.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/include/c.h b/src/include/c.h index 11fcffbae39..22535a7debb 100644 --- a/src/include/c.h +++ b/src/include/c.h @@ -754,6 +754,7 @@ typedef NameData *Name; * about a negative width for a struct bit-field. This will not include a * helpful error message, but it beats not getting an error at all. */ +#ifndef __cplusplus #ifdef HAVE__STATIC_ASSERT #define StaticAssertStmt(condition, errmessage) \ do { _Static_assert(condition, errmessage); } while(0) @@ -765,6 +766,19 @@ typedef NameData *Name; #define StaticAssertExpr(condition, errmessage) \ StaticAssertStmt(condition, errmessage) #endif /* HAVE__STATIC_ASSERT */ +#else /* C++ */ +#if defined(__cpp_static_assert) && __cpp_static_assert >= 200410 +#define StaticAssertStmt(condition, errmessage) \ + static_assert(condition, errmessage) +#define StaticAssertExpr(condition, errmessage) \ + StaticAssertStmt(condition, errmessage) +#else +#define StaticAssertStmt(condition, errmessage) \ + do { struct static_assert_struct { int static_assert_failure : (condition) ? 1 : -1; }; } while(0) +#define StaticAssertExpr(condition, errmessage) \ + ({ StaticAssertStmt(condition, errmessage); }) +#endif +#endif /* C++ */ /* |