operator<

Tests for a lexicographically less than condition.

  template <class charT, class traits, class Allocator>

  bool operator<

  const basic_string<charT,traits,Allocator>& lhs,

  const basic_string<charT,traits,Allocator>& rhs);

  template <class charT, class traits, class Allocator>

  bool operator< 

  (const charT* lhs, const basic_string

  <charT,traits,Allocator>& rhs);

  template <class charT, class traits, class Allocator>

  bool operator< 

  (const basic_string <charT,traits,Allocator>& lhs,

  const charT* rhs);

Remarks

Returns true if the first argument is lexicographically less than the second argument otherwise false.