Using strcmp and strncmp : string function « Data Types

Using strcmp and strncmp : string function « Data Types « C++ Tutorial

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C++ Tutorial » Data Types » string function

2.24.6.Using strcmp and strncmp

#include <iostream>

using std::cout;

using std::endl;



#include <iomanip>

using std::setw;



#include <cstring>

using std::strcmp;                                     

using std::strncmp;                                     



int main()

{

   char *s1 = "abc";

   char *s2 = "abC";

   char *s3 = "Abc";

 

   cout << "s1 = " << s1 << "\ns2 = " << s2 << "\ns3 = " << s3 

      << "\n\nstrcmp(s1, s2) = " << strcmp( s1, s2 ) 

      << "\nstrcmp(s1, s3) = " << strcmp( s1, s3 ) 

      << "\nstrcmp(s3, s1) = " << strcmp( s3, s1 );



   cout << "\n\nstrncmp(s1, s3, 6) = "

      << strncmp( s1, s3, 2 ) << "\nstrncmp(s1, s3, 7) = " 

      << strncmp( s1, s3, 2 ) << "\nstrncmp(s3, s1, 7) = " 

      << strncmp( s3, s1, 5 ) << endl;

   return 0;

}

s1 = abc
s2 = abC
s3 = Abc

strcmp(s1, s2) = 1
strcmp(s1, s3) = 1
strcmp(s3, s1) = -1

strncmp(s1, s3, 6) = 1
strncmp(s1, s3, 7) = 1
strncmp(s3, s1, 7) = -1

2.24.string function
	2.24.1.	Using strcpy()
	2.24.2.	Using strncpy()
	2.24.3.	strcpy, strlen, strcmp, strcat
	2.24.4.	Convert a string to uppercase.
	2.24.5.	Using strcat and strncat.
	2.24.6.	Using strcmp and strncmp
	2.24.7.	Using strtok
	2.24.8.	Using strlen

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