[Boost-commit] svn:boost r71899 - sandbox/local/libs/local/example

Subject: [Boost-commit] svn:boost r71899 - sandbox/local/libs/local/example
From: lorcaminiti_at_[hidden]
Date: 2011-05-12 12:01:27

Author: lcaminiti
Date: 2011-05-12 12:01:26 EDT (Thu, 12 May 2011)
New Revision: 71899
URL: http://svn.boost.org/trac/boost/changeset/71899

Log:
Added typed bind examples.
Added:
   sandbox/local/libs/local/example/add_this_typed.cpp   (contents, props changed)
   sandbox/local/libs/local/example/add_this_typed_va.cpp   (contents, props changed)

Added: sandbox/local/libs/local/example/add_this_typed.cpp
==============================================================================
--- (empty file)
+++ sandbox/local/libs/local/example/add_this_typed.cpp	2011-05-12 12:01:26 EDT (Thu, 12 May 2011)
@@ -0,0 +1,61 @@
+
+// Copyright (C) 2009-2011 Lorenzo Caminiti
+// Use, modification, and distribution is subject to the Boost Software
+// License, Version 1.0 (see accompanying file LICENSE_1_0.txt or a
+// copy at http://www.boost.org/LICENSE_1_0.txt).
+
+//[ add_this_typed_cpp
+#include <boost/local/function.hpp>
+#include <boost/local/block.hpp>
+#include <boost/local/exit.hpp>
+#include <vector>
+#include <algorithm>
+#include <iostream>
+#include <sstream>
+#include <cassert>
+
+class adder {
+public:
+    adder(): sum_(0.0) {}
+
+    double sum(const std::vector<double>& nums, const int& factor = 10) {
+        std::ostringstream out;
+
+        void BOOST_LOCAL_FUNCTION_PARAMS( (double num)
+                (const bind(const int&) factor) // Specify bind types
+                (bind(std::ostringstream)& out) // explicitly (so no
+                (bind(adder*) this) ) {         // Boost.Typeof for binds).
+            this_->sum_ += factor * num;
+            out << "Summed: " << this_->sum_ << std::endl;
+        } BOOST_LOCAL_FUNCTION_NAME(add)
+        std::for_each(nums.begin(), nums.end(), add);
+
+        BOOST_LOCAL_EXIT( (const bind(std::ostringstream)& out) ) {
+            std::cout << out.str();
+        } BOOST_LOCAL_EXIT_END
+
+        BOOST_LOCAL_BLOCK( (bind(std::ostringstream)& out)
+                (const bind(adder*) this) ) {
+            out << "Asserted: " << this_->sum_ << std::endl;
+            assert(this_->sum_ > 0.0);
+        } BOOST_LOCAL_BLOCK_END
+
+        return sum_;
+    }
+
+private:
+    double sum_;
+};
+
+int main() {
+    std::vector<double> v(3);
+    v[0] = 100.0; v[1] = 90.5; v[2] = 7.0;
+
+    adder a;
+    // sum = 10 * 100.0 + 10 * 90.5 + 10 * 7.0 = 1975.0
+    assert(a.sum(v) == 1975.0);
+
+    return 0;
+}
+//]
+

Added: sandbox/local/libs/local/example/add_this_typed_va.cpp
==============================================================================
--- (empty file)
+++ sandbox/local/libs/local/example/add_this_typed_va.cpp	2011-05-12 12:01:26 EDT (Thu, 12 May 2011)
@@ -0,0 +1,72 @@
+
+// Copyright (C) 2009-2011 Lorenzo Caminiti
+// Use, modification, and distribution is subject to the Boost Software
+// License, Version 1.0 (see accompanying file LICENSE_1_0.txt or a
+// copy at http://www.boost.org/LICENSE_1_0.txt).
+
+#include <boost/config.hpp>
+#if defined(BOOST_NO_VARIADIC_MACROS) || defined(BOOST_LOCAL_CONFIG_COMPLIANT)
+#include <iostream>
+int main() {
+    std::cerr << "Error: This program requires variadic macros" << std::endl;
+    return 0;
+}
+#else
+
+//[ add_this_typed_va_cpp
+#include <boost/local/function.hpp>
+#include <boost/local/block.hpp>
+#include <boost/local/exit.hpp>
+#include <vector>
+#include <algorithm>
+#include <iostream>
+#include <sstream>
+#include <cassert>
+
+class adder {
+public:
+    adder(): sum_(0.0) {}
+
+    double sum(const std::vector<double>& nums, const int& factor = 10) {
+        std::ostringstream out;
+
+        void BOOST_LOCAL_FUNCTION_PARAMS(double num,
+                const bind(const int&) factor,  // Specify bind types
+                bind(std::ostringstream)& out,  // explicitly (so no
+                bind(adder*) this) {            // Boost.Typeof for binds).
+            this_->sum_ += factor * num;
+            out << "Summed: " << this_->sum_ << std::endl;
+        } BOOST_LOCAL_FUNCTION_NAME(add)
+        std::for_each(nums.begin(), nums.end(), add);
+
+        BOOST_LOCAL_EXIT(const bind(std::ostringstream)& out) {
+            std::cout << out.str();
+        } BOOST_LOCAL_EXIT_END
+
+        BOOST_LOCAL_BLOCK(bind(std::ostringstream)& out,
+                const bind(adder*) this) {
+            out << "Asserted: " << this_->sum_ << std::endl;
+            assert(this_->sum_ > 0.0);
+        } BOOST_LOCAL_BLOCK_END
+
+        return sum_;
+    }
+
+private:
+    double sum_;
+};
+
+int main() {
+    std::vector<double> v(3);
+    v[0] = 100.0; v[1] = 90.5; v[2] = 7.0;
+
+    adder a;
+    // sum = 10 * 100.0 + 10 * 90.5 + 10 * 7.0 = 1975.0
+    assert(a.sum(v) == 1975.0);
+
+    return 0;
+}
+//]
+
+#endif
+