optional_optimization branch

[SVN r77091]

build/Jamfile.v2

@@ -12,6 +12,8 @@ SOURCES =
 lib boost_program_options
     : $(SOURCES).cpp
     : <link>shared:<define>BOOST_PROGRAM_OPTIONS_DYN_LINK=1 # tell source we're building dll's
+      # See https://svn.boost.org/trac/boost/ticket/5049
+      <target-os>hpux,<toolset>gcc:<define>_INCLUDE_STDC__SOURCE_199901
     :
     : <link>shared:<define>BOOST_PROGRAM_OPTIONS_DYN_LINK=1
     ;

doc/overview.xml

@@ -181,7 +181,7 @@ options_description desc;
 desc.add_options()
     ("help", "produce help message")
     ("compression", value<string>(), "compression level")
-    ("verbose", value<string>()->zero_tokens(), "verbosity level")
+    ("verbose", value<string>()->implicit_value("0"), "verbosity level")
     ("email", value<string>()->multitoken(), "email to send to")
     ;
       </programlisting>

example/first.cpp

@@ -29,7 +29,7 @@ int main(int ac, char* av[])
 
         if (vm.count("help")) {
             cout << desc << "\n";
-            return 1;
+            return 0;
         }
 
         if (vm.count("compression")) {

include/boost/program_options.hpp

@@ -8,7 +8,7 @@
 #ifndef PROGRAM_OPTIONS_VP_2003_05_19
 #define PROGRAM_OPTIONS_VP_2003_05_19
 
-#if _MSC_VER >= 1020
+#if defined(_MSC_VER) && _MSC_VER >= 1020
 #pragma once
 #endif
 

include/boost/program_options/config.hpp

@@ -34,17 +34,14 @@
 #endif  // BOOST_VERSION
 
 ///////////////////////////////////////////////////////////////////////////////
-// Windows DLL suport
-#ifdef BOOST_HAS_DECLSPEC
 #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_PROGRAM_OPTIONS_DYN_LINK)
 // export if this is our own source, otherwise import:
 #ifdef BOOST_PROGRAM_OPTIONS_SOURCE
-# define BOOST_PROGRAM_OPTIONS_DECL __declspec(dllexport)
+# define BOOST_PROGRAM_OPTIONS_DECL BOOST_SYMBOL_EXPORT
 #else
-# define BOOST_PROGRAM_OPTIONS_DECL __declspec(dllimport)
+# define BOOST_PROGRAM_OPTIONS_DECL BOOST_SYMBOL_IMPORT
 #endif  // BOOST_PROGRAM_OPTIONS_SOURCE
 #endif  // DYN_LINK
-#endif  // BOOST_HAS_DECLSPEC
 
 #ifndef BOOST_PROGRAM_OPTIONS_DECL
 #define BOOST_PROGRAM_OPTIONS_DECL

include/boost/program_options/parsers.hpp

@@ -260,6 +260,10 @@ namespace boost { namespace program_options {
 
 }}
 
+#if defined(BOOST_MSVC)
+#   pragma warning (pop)
+#endif
+
 #undef DECL
 
 #include "boost/program_options/detail/parsers.hpp"

include/boost/program_options/value_semantic.hpp

@@ -261,13 +261,21 @@ namespace boost { namespace program_options {
             return this;
         }
 
-        /** Specifies that the value can span multiple tokens. */
+        /** Specifies that the value can span multiple tokens. 
+        */
         typed_value* multitoken()
         {
             m_multitoken = true;
             return this;
         }
 
+        /** Specifies that no tokens may be provided as the value of
+            this option, which means that only presense of the option
+            is significant. For such option to be useful, either the
+            'validate' function should be specialized, or the 
+            'implicit_value' method should be also used. In most
+            cases, you can use the 'bool_switch' function instead of
+            using this method. */
         typed_value* zero_tokens() 
         {
             m_zero_tokens = true;

include/boost/program_options/variables_map.hpp

@@ -153,6 +153,9 @@ namespace boost { namespace program_options {
         // Resolve conflict between inherited operators.
         const variable_value& operator[](const std::string& name) const
         { return abstract_variables_map::operator[](name); }
+
+        // Override to clear some extra fields.
+        void clear(); 
         
         void notify();
 
@@ -208,4 +211,8 @@ namespace boost { namespace program_options {
 
 }}
 
+#if defined(BOOST_MSVC)
+#   pragma warning (pop)
+#endif
+
 #endif

src/cmdline.cpp

@@ -277,7 +277,7 @@ namespace boost { namespace program_options { namespace detail {
         }
 
         /* If an key option is followed by a positional option,
-           can can consume more tokens (e.g. it's multitoke option),
+           can can consume more tokens (e.g. it's multitoken option),
            give those tokens to it.  */
         vector<option> result2;
         for (unsigned i = 0; i < result.size(); ++i)

src/options_description.cpp

@@ -174,10 +174,13 @@ namespace boost { namespace program_options {
     option_description::format_name() const
     {
         if (!m_short_name.empty())
-            return string(m_short_name).append(" [ --").
-            append(m_long_name).append(" ]");
-        else
-            return string("--").append(m_long_name);
+        {
+            return m_long_name.empty() 
+                ? m_short_name 
+                : string(m_short_name).append(" [ --").
+                  append(m_long_name).append(" ]");
+        }
+        return string("--").append(m_long_name);
     }
 
     std::string 

src/parsers.cpp

@@ -45,7 +45,10 @@
 // See: http://article.gmane.org/gmane.comp.lib.boost.devel/103843
 // See: http://lists.gnu.org/archive/html/bug-guile/2004-01/msg00013.html
 #if defined(__APPLE__) && defined(__DYNAMIC__)
-#include <crt_externs.h>
+// The proper include for this is crt_externs.h, however it's not
+// available on iOS. The right replacement is not known. See
+// https://svn.boost.org/trac/boost/ticket/5053
+extern "C" { extern char ***_NSGetEnviron(void); }
 #define environ (*_NSGetEnviron()) 
 #else
 #if defined(__MWERKS__)

src/variables_map.cpp

@@ -182,6 +182,13 @@ namespace boost { namespace program_options {
     : abstract_variables_map(next)
     {}
 
+    void variables_map::clear()
+    {
+        std::map<std::string, variable_value>::clear();
+        m_final.clear();
+        m_required.clear();
+    }
+
     const variable_value&
     variables_map::get(const std::string& name) const
     {

test/cmdline_test.cpp

@@ -378,6 +378,15 @@ void test_guessing()
         {0, 0, 0}
     };
     test_cmdline("opt123 opt56 foo,f=", style, test_cases1);
+
+    test_case test_cases2[] = { 
+        {"--fname file --fname2 file2", s_success, "fname: file fname2: file2"},
+        {"--fnam file --fnam file2", s_ambiguous_option, ""},
+        {"--fnam file --fname2 file2", s_ambiguous_option, ""},
+        {"--fname2 file2 --fnam file", s_ambiguous_option, ""},
+        {0, 0, 0} 
+    };
+    test_cmdline("fname fname2", style, test_cases2);
 }
 
 void test_arguments()

test/program_options_size_test.py

@@ -21,7 +21,7 @@ void do_it()
       f.write("(\"opt%d\", value<int>())\n")
    f.write(";\n}\n")   
    f.close()
-   os.system(compiler_command + " -c -save-temps -I /home/ghost/Work/boost-rc program_options_test.cpp")
+   os.system(compiler_command + " -c -save-temps -I /home/ghost/Work/Boost/boost-svn program_options_test.cpp")
 
    nm = os.popen("nm -S program_options_test.o")
    for l in nm:
@@ -45,7 +45,7 @@ def run_tests(range, compiler_command):
    print "Avarage: ", (last_size-first_size)/(range[-1]-range[0])
 
 if __name__ == '__main__':
-   for compiler in [ "g++-3.3 -Os", "g++-3.3 -O3", "g++-3.4 -Os", "g++-3.4 -O3"]:
+   for compiler in [ "g++ -Os", "g++ -O3"]:
       print "****", compiler, "****"
       run_tests(range(1, 20), compiler)