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constexpr bool | operator() (std::string_view l, std::string_view r) const noexcept |
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static constexpr bool | alphanum_isdigit (const char c) noexcept |
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| static constexpr int | impl (std::string_view ll, std::string_view rr) noexcept |
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◆ impl()
| static constexpr int doj::alphanum_compare::impl |
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std::string_view |
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inlinestaticconstexprnoexcept |
compare l and r with strcmp() semantics, but using the "Alphanum Algorithm". This function is designed to read through the l and r strings only one time, for maximum performance. It does not allocate memory for substrings. It can either use the C-library functions isdigit() and atoi() to honour your locale settings, when recognizing digit characters when you "#define ALPHANUM_LOCALE=1" or use it's own digit character handling which only works with ASCII digit characters, but provides better performance.
- Parameters
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| l | NULL-terminated C-style string |
| r | NULL-terminated C-style string |
- Returns
- negative if l<r, 0 if l equals r, positive if l>r
The documentation for this struct was generated from the following file: