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[vcpkg] Collapse cXstring_views into a single template.

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This commit is contained in:
Robert Schumacher 2017-04-01 01:39:00 -07:00
parent aae15bd468
commit 162e9ce98f
1 changed files with 10 additions and 19 deletions
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29
toolsrc/include/cstring_view.h
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@ -3,34 +3,25 @@
namespace vcpkg namespace vcpkg
{ {
struct cstring_view template<class CharType>
struct basic_cstring_view
{ {
constexpr cstring_view(const char* cstr) : cstr(cstr) {} constexpr basic_cstring_view(const CharType* cstr) : cstr(cstr) {}
cstring_view(const std::string& str) : cstr(str.c_str()) {} basic_cstring_view(const std::basic_string<CharType>& str) : cstr(str.c_str()) {}
constexpr operator const char*() const { return cstr; } constexpr operator const CharType*() const { return cstr; }
constexpr const char* c_str() const { return cstr; } constexpr const CharType* c_str() const { return cstr; }
private: private:
const char* cstr; const CharType* cstr;
}; };
using cstring_view = basic_cstring_view<char>;
using cwstring_view = basic_cstring_view<wchar_t>;
inline const char* to_printf_arg(const cstring_view spec) { return spec.c_str(); } inline const char* to_printf_arg(const cstring_view spec) { return spec.c_str(); }
struct cwstring_view
{
constexpr cwstring_view(const wchar_t* cstr) : cstr(cstr) {}
cwstring_view(const std::wstring& str) : cstr(str.c_str()) {}
constexpr operator const wchar_t*() const { return cstr; }
constexpr const wchar_t* c_str() const { return cstr; }
private:
const wchar_t* cstr;
};
inline const wchar_t* to_wprintf_arg(const cwstring_view spec) { return spec.c_str(); } inline const wchar_t* to_wprintf_arg(const cwstring_view spec) { return spec.c_str(); }
static_assert(sizeof(cstring_view) == sizeof(void*), "cstring_view must be a simple wrapper around char*"); static_assert(sizeof(cstring_view) == sizeof(void*), "cstring_view must be a simple wrapper around char*");