#define APT_STRINGVIEW_H
#include <string.h>
#include <string>
+#include <apt-pkg/macros.h>
namespace APT {
* used by APT. It is not meant to be used in programs, only inside the
* library for performance critical paths.
*/
-class StringView {
+class APT_HIDDEN StringView {
const char *data_;
size_t size_;
- // without this little stunt the "char const *" overload is always preferred
- // over char[], but if we got a char[] we can deduct the length at compile time
- #define APT_T_IS_CHARPOINTER template<class T, typename std::enable_if<std::is_pointer<T>{} && !std::is_array<T>{}>::type* = nullptr>
-
public:
static constexpr size_t npos = static_cast<size_t>(-1);
static_assert(APT::StringView::npos == std::string::npos, "npos values are different");
constexpr StringView() : data_(""), size_(0) {}
constexpr StringView(const char *data, size_t size) : data_(data), size_(size) {}
- template<size_t N> constexpr StringView(char const (&data)[N]) : StringView(data, N-1) {}
- APT_T_IS_CHARPOINTER StringView(T data) : data_(data), size_(strlen(data)) {}
-
+ StringView(const char *data) : data_(data), size_(strlen(data)) {}
StringView(std::string const & str): data_(str.data()), size_(str.size()) {}
+
/* Viewers */
constexpr StringView substr(size_t pos, size_t n = npos) const {
return StringView(data_ + pos, n > (size_ - pos) ? (size_ - pos) : n);
}
-template<size_t N> inline bool operator ==(char const (&other)[N], APT::StringView that) { return that.operator==(other); }
-APT_T_IS_CHARPOINTER inline bool operator ==(T other, APT::StringView that) { return that.operator==(other); }
+inline bool operator ==(const char *other, APT::StringView that);
+inline bool operator ==(const char *other, APT::StringView that) { return that.operator==(other); }
-#undef APT_T_IS_CHARPOINTER
#endif