On 11/12/19 08:29 +0100, François Dumont wrote:
I plan to commit this tomorrow.

Note that rather than just adding the missing _GLIBCXX_[BEGIN,END]_VERSION_NAMESPACE I also move anonymous namespace usage outside std namespace. Let me know if it was intentional.

It was intentional, why move it?

Adding the BEGIN/END_VERSION macros is unnecessary. Those namespaces
are inline, so std::random_device already refers to
std::__8::random_device when the original declaration was in the
versioned namespace.

The only fix needed here seems to be qualifying std::isdigit (and
strictly-speaking we should also include <cctype> to declare that).


    * src/c++11/random.cc: Add _GLIBCXX_BEGIN_NAMESPACE_VERSION and
    _GLIBCXX_END_NAMESPACE_VERSION. Move anonymous namespace outside std
    namespace.

Tested under Linux x86_64 normal/debug/versioned namespace modes.

There are still tests failing in versioned namespace, more patches to come.

François


diff --git a/libstdc++-v3/src/c++11/random.cc b/libstdc++-v3/src/c++11/random.cc
index 10fbe1dc4c4..d4ebc9556ab 100644
--- a/libstdc++-v3/src/c++11/random.cc
+++ b/libstdc++-v3/src/c++11/random.cc
@@ -73,8 +73,6 @@
# define USE_MT19937 1
#endif

-namespace std _GLIBCXX_VISIBILITY(default)
-{
namespace
{
#if USE_RDRAND
@@ -124,6 +122,10 @@ namespace std _GLIBCXX_VISIBILITY(default)
#endif
}

+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
  void
  random_device::_M_init(const std::string& token)
  {
@@ -286,7 +288,7 @@ namespace std _GLIBCXX_VISIBILITY(default)
    _M_mt.seed(seed);
#else
    // Convert old default token "mt19937" or numeric seed tokens to "default".
-    if (token == "mt19937" || isdigit((unsigned char)token[0]))
+    if (token == "mt19937" || std::isdigit((unsigned char)token[0]))
      _M_init("default");
    else
      _M_init(token);
@@ -407,5 +409,7 @@ namespace std _GLIBCXX_VISIBILITY(default)
    0x9d2c5680UL, 15,
    0xefc60000UL, 18, 1812433253UL>;
#endif // USE_MT19937
-}
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
#endif // _GLIBCXX_USE_C99_STDINT_TR1

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