Compare string ignoring the case : string compare « string « C++ Tutorial






#include <string>
#include <iostream>
#include <algorithm>
#include <cctype>
#include <cwctype>

using namespace std;

inline bool caseInsCharCompareN(char a, char b) {
   return(toupper(a) == toupper(b));
}


bool caseInsCompare(const string& s1, const string& s2) {
   return((s1.size( ) == s2.size( )) &&
          equal(s1.begin( ), s1.end( ), s2.begin( ), caseInsCharCompareN));
}

int main( ) {
   string s1 = "In the BEGINNING...";
   string s2 = "In the beginning...";

   if (caseInsCompare(s1, s2))
      cout << "Equal!\n";

}
Equal!








15.7.string compare
15.7.1.String: equals
15.7.2.string overloaded equality and relational operators
15.7.3.Compare string ignoring the case
15.7.4.Compare sub string: string4.compare( 0, string2.length(), string2 )
15.7.5.Use == > and < to compare strings
15.7.6.Use string.compare to compare two strings
15.7.7.Compare strings by index: string1.compare( 2, 5, string3, 0, 5)
15.7.8.Set with functor for string comparison
15.7.9.Case-Sensitive Substring Comparison: equivalent of strncmp()
15.7.10.Case-Sensitive Substring Comparison: generalization of strncmp()
15.7.11.Case-Sensitive String Comparisons
15.7.12.Use std::lexicographical_compare to compare two char arrays