alignof/as, attribute, raw string literal

Author: elloop

understanding-c++11/alignof_alignas.cpp

@@ -0,0 +1,29 @@
+#include "alignof_alignas.h"
+
+NS_BEGIN( elloop )
+NS_BEGIN( alignof_alignas )
+
+TEST( Align, Alignof ) {
+#ifdef _MSC_VER
+#else
+    int a;
+    long long ll;
+    auto & c = ll;
+    char carry[1024];
+    //psln( alignof( int ) );
+#endif
+    
+}
+
+TEST( Align, Alignas ) {
+#ifdef _MSC_VER
+#else
+    alignas(10) char c;
+    alignas( double ) char c1;
+    alignas(alignof(double)) c2;
+#endif
+
+}
+
+NS_END( alignof_alignas )
+NS_END( elloop )

understanding-c++11/alignof_alignas.h

@@ -0,0 +1,24 @@
+#ifdef _MSC_VER
+#pragma once
+#else
+_Pragma( "once" )
+#endif
+#include "inc.h"
+
+NS_BEGIN( elloop )
+NS_BEGIN( alignof_alignas )
+
+
+
+// ALIGNOF is like sizeof, it return a std::size_t type, indicate how many
+// bytes the data is align. it's a platform related value.
+
+// TODO: followings wait to be completed.
+// ALIGNAS
+
+// std::align
+// std::align_storage
+// std::align_union
+
+NS_END(alignof_alignas )
+NS_END(elloop )

understanding-c++11/attribute.cpp

@@ -0,0 +1,31 @@
+#include "attribute.h"
+
+NS_BEGIN( elloop )
+NS_BEGIN( attribute )
+
+#ifdef _MSC_VER
+#else
+[[noreturn]]void throwAway() {
+    throw "away";
+}
+#endif
+
+
+void foo() {
+    pln( "in foo" );
+#ifdef _MSC_VER
+    pln( "vc don't work" );
+#else
+    throwAway();
+#endif
+    pln( "can't reach here" );
+}
+
+TEST( Attribute, NoReturn ) {
+    foo();
+}
+
+
+
+NS_END( attribute )
+NS_END( elloop )

understanding-c++11/attribute.h

@@ -0,0 +1,21 @@
+#ifdef _MSC_VER
+#pragma once
+#else
+_Pragma( "once" )
+#endif
+#include "inc.h"
+
+NS_BEGIN( elloop )
+NS_BEGIN( attribute )
+
+// there are only two attributes in cpp11:
+// 1. [[noreturn]]
+// 2. [[carries_dependency]]
+
+#ifdef _MSC_VER
+#else
+[[noreturn]]void throwAway();
+#endif
+
+NS_END(attribute )
+NS_END(elloop )

understanding-c++11/raw_string_literal.cpp

@@ -0,0 +1,20 @@
+#include "raw_string_literal.h"
+
+NS_BEGIN( elloop )
+NS_BEGIN( raw_string_literal )
+
+TEST( RawStringLiteral, Test ) {
+    using std::cout;
+    using string = std::string;
+    cout << R"(hello\nworld)";
+    string s = R"(hello\nworld)";
+    EXPECT_EQ( "hello\\nworld", s );
+
+    //cout << u8R"(ÄãºÃ)";
+    //cout << uR"(hello)";
+
+
+}
+
+NS_END( raw_string_literal )
+NS_END( elloop )

understanding-c++11/raw_string_literal.h

@@ -0,0 +1,14 @@
+#ifdef _MSC_VER
+#pragma once
+#else
+_Pragma( "once" )
+#endif
+#include "inc.h"
+
+NS_BEGIN( elloop )
+NS_BEGIN( raw_string_literal )
+
+
+
+NS_END(raw_string_literal )
+NS_END(elloop )

understanding-c++11/todo_next.h

@@ -1,7 +1,10 @@
 /*
-1. constexpr
-2. std::function
-3. template varargs
 
+// 2015/3/27
+// 1. rvalue, move semantic
+// 2. constexpr
+// 3. unicode
+
+// test tuple, function
 
 */

understanding-c++11/understanding-c++11.vcxproj

@@ -79,6 +79,8 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClCompile Include="alignof_alignas.cpp" />
+    <ClCompile Include="attribute.cpp" />
     <ClCompile Include="auto.cpp" />
     <ClCompile Include="compatibility.cpp" />
     <ClCompile Include="constructor_test.cpp" />
@@ -88,6 +90,7 @@
     <ClCompile Include="main.cpp" />
     <ClCompile Include="pod_test.cpp" />
     <ClCompile Include="range_based_for_loop.cpp" />
+    <ClCompile Include="raw_string_literal.cpp" />
     <ClCompile Include="SFINEA.cpp" />
     <ClCompile Include="smart_pointer.cpp" />
     <ClCompile Include="strongly_typed_enum.cpp" />
@@ -102,6 +105,8 @@
     <ClCompile Include="variadic_template.cpp" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="alignof_alignas.h" />
+    <ClInclude Include="attribute.h" />
     <ClInclude Include="auto.h" />
     <ClInclude Include="decltype.h" />
     <ClInclude Include="inline_namespace.h" />
@@ -116,6 +121,7 @@
     <ClInclude Include="pod_test.h" />
     <ClInclude Include="print_util.h" />
     <ClInclude Include="range_based_for_loop.h" />
+    <ClInclude Include="raw_string_literal.h" />
     <ClInclude Include="SFINEA.h" />
     <ClInclude Include="smart_pointer.h" />
     <ClInclude Include="strongly_typed_enum.h" />

understanding-c++11/understanding-c++11.vcxproj.filters

@@ -56,6 +56,9 @@
     <ClCompile Include="variadic_template.cpp">
       <Filter>c++11</Filter>
     </ClCompile>
+    <ClCompile Include="alignof_alignas.cpp" />
+    <ClCompile Include="attribute.cpp" />
+    <ClCompile Include="raw_string_literal.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="inc.h">
@@ -126,6 +129,9 @@
     <ClInclude Include="variadic_template.h">
       <Filter>c++11</Filter>
     </ClInclude>
+    <ClInclude Include="alignof_alignas.h" />
+    <ClInclude Include="attribute.h" />
+    <ClInclude Include="raw_string_literal.h" />
   </ItemGroup>
   <ItemGroup>
     <Filter Include="include">

understanding-c++11/variadic_template.cpp

@@ -90,7 +90,11 @@ TEST(VariadicTemplate, TemplateVariadicTemplate) {
 TEST(VariadicTemplate, PerfectForwardUsingVariadicTemplate) {
 	Fa fa;
 	Fb fb;
-	build<MultiTypes>(fa, fb);
+	auto mul = build<MultiTypes>(fa, fb);
+    //Fa fa1 = mul.t_;
+    EXPECT_EQ( &mul.t_, &fa );
+    // how to find fb in mul?
+
 }
 
 NS_END( variadic_template )