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Added .empty() to all collection types (#1887)

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Sergei Lebedev 2019-08-16 14:43:08 -07:00 committed by Wenzel Jakob
parent 08b0bda4bc
commit 046267c629
1 changed files with 5 additions and 0 deletions
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5
include/pybind11/pytypes.h
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@ -1202,6 +1202,7 @@ public:
if (!m_ptr) pybind11_fail("Could not allocate tuple object!");
}
size_t size() const { return (size_t) PyTuple_Size(m_ptr); }
bool empty() const { return size() == 0; }
detail::tuple_accessor operator[](size_t index) const { return {*this, index}; }
detail::item_accessor operator[](handle h) const { return object::operator[](h); }
detail::tuple_iterator begin() const { return {*this, 0}; }
@ -1221,6 +1222,7 @@ public:
explicit dict(Args &&...args) : dict(collector(std::forward<Args>(args)...).kwargs()) { }
size_t size() const { return (size_t) PyDict_Size(m_ptr); }
bool empty() const { return size() == 0; }
detail::dict_iterator begin() const { return {*this, 0}; }
detail::dict_iterator end() const { return {}; }
void clear() const { PyDict_Clear(ptr()); }
@ -1241,6 +1243,7 @@ class sequence : public object {
public:
PYBIND11_OBJECT_DEFAULT(sequence, object, PySequence_Check)
size_t size() const { return (size_t) PySequence_Size(m_ptr); }
bool empty() const { return size() == 0; }
detail::sequence_accessor operator[](size_t index) const { return {*this, index}; }
detail::item_accessor operator[](handle h) const { return object::operator[](h); }
detail::sequence_iterator begin() const { return {*this, 0}; }
@ -1254,6 +1257,7 @@ public:
if (!m_ptr) pybind11_fail("Could not allocate list object!");
}
size_t size() const { return (size_t) PyList_Size(m_ptr); }
bool empty() const { return size() == 0; }
detail::list_accessor operator[](size_t index) const { return {*this, index}; }
detail::item_accessor operator[](handle h) const { return object::operator[](h); }
detail::list_iterator begin() const { return {*this, 0}; }
@ -1273,6 +1277,7 @@ public:
if (!m_ptr) pybind11_fail("Could not allocate set object!");
}
size_t size() const { return (size_t) PySet_Size(m_ptr); }
bool empty() const { return size() == 0; }
template <typename T> bool add(T &&val) const {
return PySet_Add(m_ptr, detail::object_or_cast(std::forward<T>(val)).ptr()) == 0;
}