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# /home/coin/SVN-release/Ipopt-3.5.1/Ipopt/contrib/MatlabInterface/src/matlabstring.h

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    00001 // Copyright (C) 2007 Peter Carbonetto. All Rights Reserved.
    00002 // This code is published under the Common Public License.
    00003 //
    00004 // Author: Peter Carbonetto
    00005 //         Dept. of Computer Science
    00006 //         University of British Columbia
    00007 //         May 19, 2007
    00008
    00009 #ifndef INCLUDE_MATLABSTRING
    00010 #define INCLUDE_MATLABSTRING
    00011
    00012 #include "mex.h"
    00013 #include <string>
    00014
    00015 // Function declarations.
    00016 // -----------------------------------------------------------------
    00017 // Copy a C-style string (i.e. a null-terminated character array).
    00018 char* copystring (const char* source);
    00019
    00020 // Class MatlabString.
    00021 // -----------------------------------------------------------------
    00022 // This class encapsulates read-only access to a MATLAB character
    00023 // array.
    00024 class MatlabString {
    00025 public:
    00026
    00027   // The constructor accepts as input a pointer to a Matlab array,
    00028   // which must be a valid string (array of type CHAR).
    00029   explicit MatlabString (const mxArray* ptr);
    00030
    00031   // This constructor accepts as input a null-terminated string.
    00032   explicit MatlabString (const char* s);
    00033
    00034   // The copy constructor makes a full copy of the source string.
    00035   MatlabString (const MatlabString& source);
    00036
    00037   // The destructor.
    00038   ~MatlabString();
    00039
    00040   // Return true if the string is empty.
    00041   bool isempty () const { return strlen(s) == 0; };
    00042
    00043   // Conversion operator for null-terminated string.
    00044   operator const char* () const { return s; };
    00045
    00046   // Conversion operator for string object.
    00047   operator std::string () const { return std::string(s); };
    00048
    00049 protected:
    00050   char* s;  // The null-terminated string.
    00051
    00052   // The copy assignment operator is not proper, thus remains
    00053   // protected.
    00054   MatlabString& operator= (const MatlabString& source) { return *this; };
    00055 };
    00056
    00057 #endif