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, 34 insertions, 0 deletions

diff --git a/cli/option-types.hxx b/cli/option-types.hxx
new file mode 100644
index 0000000..03cfbaa
--- /dev/null
+++ b/cli/option-types.hxx
@@ -0,0 +1,34 @@
+// file      : cli/option-types.hxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2009-2011 Code Synthesis Tools CC
+// license   : MIT; see accompanying LICENSE file
+
+#ifndef CLI_OPTION_TYPES_HXX
+#define CLI_OPTION_TYPES_HXX
+
+#include <iosfwd>
+#include <string>
+
+struct cxx_version
+{
+  enum value
+  {
+    cxx98,
+    cxx11,
+    cxx14
+  };
+
+  cxx_version (value v = value (0)) : v_ (v) {}
+  operator value () const {return v_;}
+
+  std::string
+  string () const;
+
+private:
+  value v_;
+};
+
+std::istream&
+operator>> (std::istream&, cxx_version&);
+
+#endif // CLI_OPTION_TYPES_HXX