Add --std option with c++{98,11,14} values; use function-static in C++11

This way we can use option descriptions during static initialization (e.g.,
of an Apache module).

1 files changed, 44 insertions, 0 deletions

diff --git a/cli/option-types.cxx b/cli/option-types.cxx
new file mode 100644
index 0000000..b3bc6ad
--- /dev/null
+++ b/cli/option-types.cxx
@@ -0,0 +1,44 @@
+// file      : cli/option-types.cxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
+// license   : MIT; see accompanying LICENSE file
+
+#include <istream>
+
+#include "option-types.hxx"
+
+using namespace std;
+
+static const char* cxx_version_[] =
+{
+  "c++98",
+  "c++11"
+  "c++14"
+};
+
+string cxx_version::
+string () const
+{
+  return cxx_version_[v_];
+}
+
+istream&
+operator>> (istream& is, cxx_version& v)
+{
+  string s;
+  is >> s;
+
+  if (!is.fail ())
+  {
+    if (s == "c++98")
+      v = cxx_version::cxx98;
+    else if (s == "c++11")
+      v = cxx_version::cxx11;
+    else if (s == "c++14")
+      v = cxx_version::cxx14;
+    else
+      is.setstate (istream::failbit);
+  }
+
+  return is;
+}