LCOV - code coverage report
Current view: directory - objdir/dist/include - nsAlgorithm.h (source / functions) Found Hit Coverage
Test: app.info Lines: 20 16 80.0 %
Date: 2012-06-02 Functions: 48 24 50.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is mozilla.org code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Scott Collins <scc@mozilla.org> (original author)
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      27                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : #ifndef nsAlgorithm_h___
      40                 : #define nsAlgorithm_h___
      41                 : 
      42                 : #ifndef nsCharTraits_h___
      43                 : #include "nsCharTraits.h"
      44                 :   // for |nsCharSourceTraits|, |nsCharSinkTraits|
      45                 : #endif
      46                 : 
      47                 : #ifndef prtypes_h___
      48                 : #include "prtypes.h"
      49                 :   // for |PRUint32|...
      50                 : #endif
      51                 : 
      52                 : #ifndef nsDebug_h___
      53                 : #include "nsDebug.h"
      54                 :   // for NS_ASSERTION
      55                 : #endif
      56                 : 
      57                 : 
      58                 : template <class T>
      59                 : inline
      60                 : T
      61               0 : NS_ROUNDUP( const T& a, const T& b )
      62                 :   {
      63               0 :     return ((a + (b - 1)) / b) * b;
      64                 :   }
      65                 : 
      66                 : template <class T>
      67                 : inline
      68                 : const T&
      69        50872291 : NS_MIN( const T& a, const T& b )
      70                 :   {
      71        50872291 :     return b < a ? b : a;
      72                 :   }
      73                 : 
      74                 : // Must return b when a == b in case a is -0
      75                 : template <class T>
      76                 : inline
      77                 : const T&
      78           92732 : NS_MAX( const T& a, const T& b )
      79                 :   {
      80           92732 :     return a > b ? a : b;
      81                 :   }
      82                 : 
      83                 : namespace mozilla {
      84                 : 
      85                 : template <class T>
      86                 : inline
      87                 : const T&
      88           10931 : clamped( const T& a, const T& min, const T& max )
      89                 :   {
      90           10931 :     NS_ABORT_IF_FALSE(max >= min, "clamped(): max must be greater than or equal to min");
      91           10931 :     return NS_MIN(NS_MAX(a, min), max);
      92                 :   }
      93                 : 
      94                 : }
      95                 : 
      96                 : template <class T>
      97                 : inline
      98                 : T
      99               0 : NS_ABS( const T& a )
     100                 :   {
     101               0 :     return a < 0 ? -a : a;
     102                 :   }
     103                 : 
     104                 : template <class InputIterator, class T>
     105                 : inline
     106                 : PRUint32
     107              50 : NS_COUNT( InputIterator& first, const InputIterator& last, const T& value )
     108                 :   {
     109              50 :     PRUint32 result = 0;
     110            3550 :     for ( ; first != last; ++first )
     111            3500 :       if ( *first == value )
     112              50 :         ++result;
     113              50 :     return result;
     114                 :   }
     115                 : 
     116                 : template <class InputIterator, class OutputIterator>
     117                 : inline
     118                 : OutputIterator&
     119         5745231 : copy_string( const InputIterator& first, const InputIterator& last, OutputIterator& result )
     120                 :   {
     121                 :     typedef nsCharSourceTraits<InputIterator> source_traits;
     122                 :     typedef nsCharSinkTraits<OutputIterator>  sink_traits;
     123                 : 
     124         5745231 :     sink_traits::write(result, source_traits::read(first), source_traits::readable_distance(first, last));
     125         5745231 :     return result;
     126                 :   }
     127                 : 
     128                 : #endif // !defined(nsAlgorithm_h___)

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