VectorView supports all types of EPS, Ai, SVG and SWF files. There are several drawing programs and vector graphic editing applications that supports EPS, Ai, SVG and SWF file extensions and these file are usually used as a standard means for transferring image data between different operating systems (Windows, Linux, macOS). VectorView allows you open and view CorelDRAW files on iPhone and iPad. To open cdr files, click Copy to CDRViewer from any app like Mail, WhatsApp, Telegram, WeChat or just send cdr files from.
-->Definition
Represents an immutable view into a vector.
.NETThis interface appears to .NET code as System.Collections.Generic.IReadOnlyList due to .NET language projection. In any case where a Windows Runtime type has implemented IVectorView<T>, .NET code can use the APIs of IReadOnlyList instead.
Type Parameters
- T
- Attributes
Vector Viewer For Mac
Windows 10 requirements
Vector Viewer Program
| Device family | |
| API contract | Windows.Foundation.FoundationContract (introduced in v1.0) |
Remarks
For read-write collections, the IVectorView<T> interface is still relevant, because the IVector.GetView method returns an IVectorView<T> instance.
When programming with .NET, this interface is hidden and developers should use the interface if they want to implement a read-only vector/list type. In any case where a Windows Runtime type has implemented IVectorView<T>, .NET code can use the APIs of instead. This includes all the existing Windows Runtime API and also scenarios such as using the APIs of Windows Runtime components originally implemented in Visual C++ component extensions (C++/CX) from a C# or Visual Basic app.
Interface inheritance
IVectorView inherits IIterable. Types that implement IVectorView also implement the interface members of IIterable. Similarly, if you're using .NET, there is support for IEnumerable.
Properties
| Size | Gets the number of items in the vector view. |
Methods
| GetAt(UInt32) | Returns the item at the specified index in the vector view. |
| GetMany(UInt32, T[]) | Gets a collection of items from the vector view beginning at the given index. |
| IndexOf(T, UInt32) | Retrieves the index of a specified item in the vector view. |
Applies to
| Language | ||||
| Standard Library Headers | ||||
| Freestanding and hosted implementations | ||||
| Named requirements | ||||
| Language support library | ||||
| Concepts library(C++20) | ||||
| Diagnostics library | ||||
| Utilities library | ||||
| Strings library | ||||
| Containers library | ||||
| Iterators library | ||||
| Ranges library(C++20) | ||||
| Algorithms library | ||||
| Numerics library | ||||
| Localizations library | ||||
| Input/output library | ||||
| Filesystem library(C++17) | ||||
| Regular expressions library(C++11) | ||||
| Atomic operations library(C++11) | ||||
| Thread support library(C++11) | ||||
| Technical Specifications |
| Null-terminated strings | ||||
| Byte strings | ||||
| Multibyte strings | ||||
| Wide strings | ||||
| Classes | ||||
(C++17) |
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Defined in header <string_view> | |
template< class CharT, | (since C++17) |
The class template basic_string_view describes an object that can refer to a constant contiguous sequence of char-like objects with the first element of the sequence at position zero.
A typical implementation holds only two members: a pointer to constant CharT and a size.
Several typedefs for common character types are provided:
| Type | Definition |
| std::string_view | std::basic_string_view<char> |
| std::wstring_view | std::basic_string_view<wchar_t> |
| std::u8string_view(C++20) | std::basic_string_view<char8_t> |
| std::u16string_view | std::basic_string_view<char16_t> |
| std::u32string_view | std::basic_string_view<char32_t> |
Contents
|
[edit]Template parameters
| CharT | - | character type |
| Traits | - | CharTraits class specifying the operations on the character type. Like for basic_string, Traits::char_type must name the same type as CharT or the program is ill-formed. |
[edit]Member types
| Member type | Definition |
traits_type | Traits |
value_type | CharT |
pointer | CharT* |
const_pointer | const CharT* |
reference | CharT& |
const_reference | const CharT& |
const_iterator | implementation-defined constant LegacyRandomAccessIterator, ConstexprIterator(since C++20) and LegacyContiguousIterator whose value_type is CharT |
iterator | const_iterator |
const_reverse_iterator | std::reverse_iterator<const_iterator> |
reverse_iterator | const_reverse_iterator |
size_type | std::size_t |
difference_type | std::ptrdiff_t |
Note: iterator and const_iterator are the same type because string views are views into constant character sequences.
All requirements on the iterator types of a Container applies to the iterator and const_iterator types of basic_string_view as well.
[edit]Member functions
Constructors and assignment | |
constructs a basic_string_view(public member function)[edit] | |
| assigns a view (public member function)[edit] | |
Iterators | |
| returns an iterator to the beginning (public member function)[edit] | |
| returns an iterator to the end (public member function)[edit] | |
| returns a reverse iterator to the beginning (public member function)[edit] | |
| returns a reverse iterator to the end (public member function)[edit] | |
Element access | |
| accesses the specified character (public member function)[edit] | |
| accesses the specified character with bounds checking (public member function)[edit] | |
| accesses the first character (public member function)[edit] | |
| accesses the last character (public member function)[edit] | |
| returns a pointer to the first character of a view (public member function)[edit] | |
Capacity | |
| returns the number of characters (public member function)[edit] | |
| returns the maximum number of characters (public member function)[edit] | |
| checks whether the view is empty (public member function)[edit] | |
Modifiers | |
| shrinks the view by moving its start forward (public member function)[edit] | |
| shrinks the view by moving its end backward (public member function)[edit] | |
| swaps the contents (public member function)[edit] | |
Operations | |
| copies characters (public member function)[edit] | |
| returns a substring (public member function)[edit] | |
| compares two views (public member function)[edit] | |
(C++20) | checks if the string view starts with the given prefix (public member function)[edit] |
(C++20) | checks if the string view ends with the given suffix (public member function)[edit] |
(C++23) | checks if the string view contains the given substring or character (public member function)[edit] |
| find characters in the view (public member function)[edit] | |
| find the last occurrence of a substring (public member function)[edit] | |
| find first occurrence of characters (public member function)[edit] | |
| find last occurrence of characters (public member function)[edit] | |
| find first absence of characters (public member function)[edit] | |
| find last absence of characters (public member function)[edit] | |
Constants | |
[static] | special value. The exact meaning depends on the context (public static member constant)[edit] |
[edit]Non-member functions
(removed in C++20)(removed in C++20)(removed in C++20)(removed in C++20)(removed in C++20)(C++20) | lexicographically compares two string views (function template)[edit] |
Input/output | |
| performs stream output on string views (function template)[edit] | |
Vectorview
[edit]Literals
Defined in inline namespace std::literals::string_view_literals | |
(C++17) | Creates a string view of a character array literal (function)[edit] |
[edit]Helper classes
| hash support for string views (class template specialization)[edit] |
[edit]Helper templates
Vector Views
template<class CharT, class Traits> inlineconstexprboolranges::enable_borrowed_range<std::basic_string_view<CharT, Traits>>=true; | (since C++20) |
This specialization of std::ranges::enable_borrowed_range makes basic_string_view satisfy borrowed_range.
template<class CharT, class Traits> inlineconstexprboolranges::enable_view<std::basic_string_view<CharT, Traits>>=true; | (since C++20) |
This specialization of std::ranges::enable_view makes basic_string_view satisfy view.
[edit]Deduction guides(since C++20)
[edit]Notes
It is the programmer's responsibility to ensure that std::string_view does not outlive the pointed-to character array:
[edit]Example
Output:
[edit]See also
| stores and manipulates sequences of characters (class template)[edit] | |
(C++20) | a non-owning view over a contiguous sequence of objects (class template)[edit] |
(C++11) | creates a temporary array in list-initialization and then references it (class template)[edit] |