MPD  0.20.18
Compare.hxx
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19 
20 #ifndef MPD_ICU_COMPARE_HXX
21 #define MPD_ICU_COMPARE_HXX
22 
23 #include "check.h"
24 #include "Compiler.h"
25 #include "util/AllocatedString.hxx"
26 
32 class IcuCompare {
33  AllocatedString<> needle;
34 
35 public:
36  IcuCompare():needle(nullptr) {}
37 
38  explicit IcuCompare(const char *needle) noexcept;
39 
40  IcuCompare(const IcuCompare &src) noexcept
41  :needle(src
42  ? AllocatedString<>::Duplicate(src.needle.c_str())
43  : nullptr) {}
44 
45  IcuCompare &operator=(const IcuCompare &src) noexcept {
46  needle = src
47  ? AllocatedString<>::Duplicate(src.needle.c_str())
48  : nullptr;
49  return *this;
50  }
51 
52  IcuCompare(IcuCompare &&) = default;
53  IcuCompare &operator=(IcuCompare &&) = default;
54 
55  gcc_pure
56  operator bool() const noexcept {
57  return !needle.IsNull();
58  }
59 
60  gcc_pure
61  bool operator==(const char *haystack) const noexcept;
62 
63  gcc_pure
64  bool IsIn(const char *haystack) const noexcept;
65 };
66 
67 #endif
IcuCompare & operator=(const IcuCompare &src) noexcept
Definition: Compare.hxx:45
constexpr bool IsNull() const
gcc_pure bool operator==(const char *haystack) const noexcept
This class can compare one string ("needle") with lots of other strings ("haystacks") efficiently...
Definition: Compare.hxx:32
IcuCompare()
Definition: Compare.hxx:36
static AllocatedString Duplicate(const_pointer_type src)
A string pointer whose memory is managed by this class.
Definition: Util.hxx:29
IcuCompare(const IcuCompare &src) noexcept
Definition: Compare.hxx:40
gcc_pure bool IsIn(const char *haystack) const noexcept
#define gcc_pure
Definition: Compiler.h:116