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make_cow

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邹晓航
2015-03-19 16:09:28 +08:00
parent 16fe2265b8
commit 39b6e637be
3 changed files with 7 additions and 2 deletions
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2
README.md
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@@ -569,7 +569,7 @@ TinySTL
####(19):cow_ptr ####(19):cow_ptr
cow_ptr<string> cp1(new string("zouxiaohang")); cow_ptr<string> cp1 = make_cow<string>("zouxiaohang");
auto cp2 = cp1, cp3 = cp1; auto cp2 = cp1, cp3 = cp1;
assert(cp1 == cp2 && cp2 == cp3); assert(cp1 == cp2 && cp2 == cp3);
assert(*cp1 == *cp2 && *cp2 == *cp3 && *cp3 == "zouxiaohang"); assert(*cp1 == *cp2 && *cp2 == *cp3 && *cp3 == "zouxiaohang");

5
TinySTL/COWPtr.h
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@@ -68,6 +68,11 @@ namespace TinySTL{
template<class _T> template<class _T>
friend class Detail::proxy; friend class Detail::proxy;
}; };
template<class T, class... Args>
cow_ptr<T> make_cow(Args...args){
return cow_ptr<T>(new T(std::forward<Args>(args)...));
}
} }
#include "Detail\COWPtr.impl.h" #include "Detail\COWPtr.impl.h"

2
TinySTL/Test/COWPtrTest.cpp
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@@ -28,7 +28,7 @@ namespace TinySTL{
assert(cp4 == nullptr); assert(cp4 == nullptr);
} }
void testCase2(){ void testCase2(){
cow_ptr<string> cp1(new string("zouxiaohang")); cow_ptr<string> cp1 = make_cow<string>("zouxiaohang");
auto cp2 = cp1, cp3 = cp1; auto cp2 = cp1, cp3 = cp1;
assert(cp1 == cp2 && cp2 == cp3); assert(cp1 == cp2 && cp2 == cp3);
assert(*cp1 == *cp2 && *cp2 == *cp3 && *cp3 == "zouxiaohang"); assert(*cp1 == *cp2 && *cp2 == *cp3 && *cp3 == "zouxiaohang");