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Adding workarounds for MSVC 2015

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This commit is contained in:
Sergey Lyskov 2016-05-09 15:57:35 -04:00
parent 4d96a44414
commit 75ffdba9a3
1 changed files with 26 additions and 18 deletions
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44
include/pybind11/stl_binders.h
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@ -21,16 +21,18 @@
NAMESPACE_BEGIN(pybind11)
#if (!defined _MSC_VER) || (_MSC_VER > 1900)
#define INSERTION_OPERATOR_IMPLEMENTATION
#endif
template<typename T>
constexpr auto has_equal_operator(int) -> decltype(std::declval<T>() == std::declval<T>(), bool()) { return true; }
template<typename T>
constexpr bool has_equal_operator(...) { return false; }
// Workaround for MSVC 2015
template<typename T>
struct has_equal_operator_s {
static const bool value = has_equal_operator<T>(0);
};
template<typename T>
@ -38,8 +40,13 @@ constexpr auto has_not_equal_operator(int) -> decltype(std::declval<T>() != std:
template<typename T>
constexpr bool has_not_equal_operator(...) { return false; }
// Workaround for MSVC 2015
template<typename T>
struct has_not_equal_operator_s {
static const bool value = has_not_equal_operator<T>(0);
};
#ifdef INSERTION_OPERATOR_IMPLEMENTATION
namespace has_insertion_operator_implementation {
enum class False {};
struct any_type {
@ -52,7 +59,13 @@ constexpr bool has_insertion_operator() {
using namespace has_insertion_operator_implementation;
return std::is_same< decltype(std::declval<std::ostream&>() << std::declval<T>()), std::ostream & >::value;
}
#endif
// Workaround for MSVC 2015
template<typename T>
struct has_insertion_operator_s {
static const bool value = has_insertion_operator<T>();
};
template <typename T, typename Allocator = std::allocator<T>, typename holder_type = std::unique_ptr< std::vector<T, Allocator> > >
@ -98,7 +111,7 @@ class vector_binder {
void maybe_copy_constructible() {}
template<typename U = T, typename std::enable_if< has_equal_operator<U>(0) >::type * = nullptr>
template<typename U = T, typename std::enable_if< has_equal_operator_s<U>::value >::type * = nullptr>
void maybe_has_equal_operator() {
cl.def(pybind11::self == pybind11::self);
cl.def(pybind11::self != pybind11::self);
@ -113,25 +126,24 @@ class vector_binder {
cl.def("__contains__", [](Vector const &v, T const &t) { return std::find(v.begin(), v.end(), t) != v.end(); }, "return true if item in the container");
}
template<typename U = T, typename std::enable_if< !has_equal_operator<U>(0) >::type * = nullptr>
template<typename U = T, typename std::enable_if< !has_equal_operator_s<U>::value >::type * = nullptr>
void maybe_has_equal_operator() {}
template<typename U = T, typename std::enable_if< has_not_equal_operator<U>(0) >::type * = nullptr>
template<typename U = T, typename std::enable_if< has_not_equal_operator_s<U>::value >::type * = nullptr>
void maybe_has_not_equal_operator() {
cl.def(pybind11::self != pybind11::self);
}
template<typename U = T, typename std::enable_if< !has_not_equal_operator<U>(0) >::type * = nullptr>
template<typename U = T, typename std::enable_if< !has_not_equal_operator_s<U>::value >::type * = nullptr>
void maybe_has_not_equal_operator() {}
#ifdef INSERTION_OPERATOR_IMPLEMENTATION
template<typename U = T, typename std::enable_if< has_insertion_operator<U>() >::type * = nullptr>
template<typename U = T, typename std::enable_if< has_insertion_operator_s<U>::value >::type * = nullptr>
void maybe_has_insertion_operator(char const *name) {
cl.def("__repr__", [name](typename vector_binder<T>::Vector &v) {
std::ostringstream s;
s << name << '[';
for(uint i=0; i<v.size(); ++i) {
for(SizeType i=0; i<v.size(); ++i) {
s << v[i];
if(i != v.size()-1) s << ", ";
}
@ -140,10 +152,8 @@ class vector_binder {
});
}
template<typename U = T, typename std::enable_if< !has_insertion_operator<U>() >::type * = nullptr>
template<typename U = T, typename std::enable_if< !has_insertion_operator_s<U>::value >::type * = nullptr>
void maybe_has_insertion_operator(char const *) {}
#endif
public:
@ -242,9 +252,7 @@ public:
maybe_has_not_equal_operator();
// Printing
#ifdef INSERTION_OPERATOR_IMPLEMENTATION
maybe_has_insertion_operator(name);
#endif
// C++ style functions deprecated, leaving it here as an example
//cl.def("empty", &Vector::empty, "checks whether the container is empty");