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| author | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
|---|---|---|
| committer | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
| commit | 33613a85afc4b1481367fbe92a17ee59c240250b (patch) | |
| tree | 670b842326116b376b505ec2263878912fca97e2 /Bachelor/Prog2/Codebeispiele/7_ch21/fig21_29.CPP | |
| download | Studium-33613a85afc4b1481367fbe92a17ee59c240250b.tar.gz Studium-33613a85afc4b1481367fbe92a17ee59c240250b.tar.bz2 | |
Diffstat (limited to 'Bachelor/Prog2/Codebeispiele/7_ch21/fig21_29.CPP')
| -rw-r--r-- | Bachelor/Prog2/Codebeispiele/7_ch21/fig21_29.CPP | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/Bachelor/Prog2/Codebeispiele/7_ch21/fig21_29.CPP b/Bachelor/Prog2/Codebeispiele/7_ch21/fig21_29.CPP new file mode 100644 index 0000000..252fed4 --- /dev/null +++ b/Bachelor/Prog2/Codebeispiele/7_ch21/fig21_29.CPP @@ -0,0 +1,99 @@ +// Fig. 21.29: fig21_29.cpp
+// Standard library functions replace, replace_if,
+// replace_copy and replace_copy_if.
+#include <iostream>
+
+using std::cout;
+using std::endl;
+
+#include <algorithm>
+#include <vector>
+
+bool greater9( int );
+
+int main()
+{
+ const int SIZE = 10;
+ int a[ SIZE ] = { 10, 2, 10, 4, 16, 6, 14, 8, 12, 10 };
+
+ std::ostream_iterator< int > output( cout, " " );
+
+ std::vector< int > v1( a, a + SIZE );
+ cout << "Vector v1 before replacing all 10s:\n ";
+ std::copy( v1.begin(), v1.end(), output );
+
+ // replace 10s in v1 with 100
+ std::replace( v1.begin(), v1.end(), 10, 100 );
+
+ cout << "\nVector v1 after replacing 10s with 100s:\n ";
+ std::copy( v1.begin(), v1.end(), output );
+
+ std::vector< int > v2( a, a + SIZE );
+ std::vector< int > c1( SIZE );
+
+ cout << "\n\nVector v2 before replacing all 10s "
+ << "and copying:\n ";
+ std::copy( v2.begin(), v2.end(), output );
+
+ // copy from v2 to c1, replacing 10s with 100s
+ std::replace_copy(
+ v2.begin(), v2.end(), c1.begin(), 10, 100 );
+
+ cout << "\nVector c1 after replacing all 10s in v2:\n ";
+ std::copy( c1.begin(), c1.end(), output );
+
+ std::vector< int > v3( a, a + SIZE );
+
+ cout << "\n\nVector v3 before replacing values greater"
+ << " than 9:\n ";
+ std::copy( v3.begin(), v3.end(), output );
+
+ // replace values greater than 9 in v3 with 100
+ std::replace_if( v3.begin(), v3.end(), greater9, 100 );
+
+ cout << "\nVector v3 after replacing all values greater"
+ << "\nthan 9 with 100s:\n ";
+ std::copy( v3.begin(), v3.end(), output );
+
+ std::vector< int > v4( a, a + SIZE );
+ std::vector< int > c2( SIZE );
+
+ cout << "\n\nVector v4 before replacing all values greater "
+ << "than 9 and copying:\n ";
+ std::copy( v4.begin(), v4.end(), output );
+
+ // copy v4 to c2, replacing elements greater than 9 with 100
+ std::replace_copy_if(
+ v4.begin(), v4.end(), c2.begin(), greater9, 100 );
+
+ cout << "\nVector c2 after replacing all values greater "
+ << "than 9 in v4:\n ";
+ std::copy( c2.begin(), c2.end(), output );
+
+ cout << endl;
+
+ return 0;
+
+} // end main
+
+// determine whether argument is greater than 9
+bool greater9( int x )
+{
+ return x > 9;
+
+} // end function greater9
+
+/**************************************************************************
+ * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice *
+ * Hall. All Rights Reserved. *
+ * *
+ * DISCLAIMER: The authors and publisher of this book have used their *
+ * best efforts in preparing the book. These efforts include the *
+ * development, research, and testing of the theories and programs *
+ * to determine their effectiveness. The authors and publisher make *
+ * no warranty of any kind, expressed or implied, with regard to these *
+ * programs or to the documentation contained in these books. The authors *
+ * and publisher shall not be liable in any event for incidental or *
+ * consequential damages in connection with, or arising out of, the *
+ * furnishing, performance, or use of these programs. *
+ *************************************************************************/
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