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41 lines
1.1 KiB
ReStructuredText
41 lines
1.1 KiB
ReStructuredText
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.. _sprout-string-char_traits-compare:
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###############################################################################
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compare
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###############################################################################
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Interface
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========================================
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.. sourcecode:: c++
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static SPROUT_CONSTEXPR int compare(char_type const* s1, char_type const* s2, std::size_t n);
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Returns
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========================================
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| Equivalent to ``std::char_traits<Char>::compare(s1, s2, n)`` in constant expression.
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Examples
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========================================
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.. sourcecode:: c++
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#include <sprout/string.hpp>
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using namespace sprout;
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SPROUT_STATIC_CONSTEXPR char const* x = "homuhomu";
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SPROUT_STATIC_CONSTEXPR char const* y = "madocchi";
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SPROUT_STATIC_CONSTEXPR auto result = char_traits<char>::compare(x, y, 8);
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static_assert(result < 0, "x is less than y.");
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Complexity
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========================================
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| linear.
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| Recursive function invocations in *O(logN)* (logarithmic) depth.
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Header
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========================================
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| ``sprout/string/char_traits.hpp``
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| Convenience header: ``sprout/string.hpp``
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