Make basic_string_view ctors constexpr

This commit is contained in:
Victor Zverovich 2017-09-29 12:26:57 -07:00
parent d5e918b61f
commit 17f93fe084

View File

@ -353,10 +353,11 @@ class basic_string_view {
public:
using char_type = Char;
basic_string_view() : data_(0), size_(0) {}
constexpr basic_string_view() noexcept : data_(0), size_(0) {}
/** Constructs a string reference object from a C string and a size. */
basic_string_view(const Char *s, std::size_t size) : data_(s), size_(size) {}
constexpr basic_string_view(const Char *s, std::size_t size) noexcept
: data_(s), size_(size) {}
/**
\rst
@ -364,7 +365,7 @@ class basic_string_view {
the size with ``std::char_traits<Char>::length``.
\endrst
*/
basic_string_view(const Char *s)
constexpr basic_string_view(const Char *s)
: data_(s), size_(std::char_traits<Char>::length(s)) {}
/**
@ -372,7 +373,7 @@ class basic_string_view {
Constructs a string reference from an ``std::string`` object.
\endrst
*/
basic_string_view(const std::basic_string<Char> &s)
constexpr basic_string_view(const std::basic_string<Char> &s) noexcept
: data_(s.c_str()), size_(s.size()) {}
/**