String: equals : string compare « string « C++ Tutorial

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C++ Tutorial » string » string compare

15.7.1.String: equals

#include <iostream.h>

#include <string>

using std::string;



main(void)

{

   string s1 = "abcdefghijk", s2 = "1234567890", s3,s4,s5;



   s3=s1+s2;

   cout << s3 <<endl;



   s4=s3;

   if (s4==s3) 

      cout << " s4==s3 is true\n";



   return(0);

}

abcdefghijk1234567890
 s4==s3 is true

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

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