varable.h

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/**********************************************************************
 * File:        varable.h  (Formerly variable.h)
 * Description: Class definitions of the *_VAR classes for tunable constants.
 * Author:					Ray Smith
 * Created:					Fri Feb 22 11:26:25 GMT 1991
 *
 * (C) Copyright 1991, Hewlett-Packard Ltd.
 ** Licensed under the Apache License, Version 2.0 (the "License");
 ** you may not use this file except in compliance with the License.
 ** You may obtain a copy of the License at
 ** http://www.apache.org/licenses/LICENSE-2.0
 ** Unless required by applicable law or agreed to in writing, software
 ** distributed under the License is distributed on an "AS IS" BASIS,
 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 ** See the License for the specific language governing permissions and
 ** limitations under the License.
 *
 **********************************************************************/

#ifndef           VARABLE_H
#define           VARABLE_H

#include          <stdio.h>
#include          "clst.h"
#include          "strngs.h"

class DLLSYM INT_VARIABLE;

                                 //read the file
extern DLLSYM BOOL8 read_variables_file(const char *file  //name to read
                                       );
                                 //print all vars
extern DLLSYM void print_variables(FILE *fp  //file to print on
                                  );

CLISTIZEH (INT_VARIABLE)
class DLLSYM INT_VAR_FROM
{
  friend class INT_VAR_TO;
  public:
    INT_VAR_FROM();  //constructor
  private:
    INT_VARIABLE_CLIST list;     //copy of list
};

class DLLSYM INT_VAR_TO
{
  public:
    INT_VAR_TO();  //constructor
  private:
    INT_VARIABLE_CLIST dummy;
};

class DLLSYM INT_VARIABLE
{
  friend class INT_VAR_TO;
  friend class INT_VAR_FROM;
                                 //for setting values
  friend DLLSYM BOOL8 read_variables_file(const char *file);  //file to read

  public:
    INT_VARIABLE(                       //constructor
                 INT32 v,               //initial value
                 const char *vname,     //name of variable
                 const char *comment);  //info on variable

    INT_VARIABLE() {  //for elist only
      value = 0;
      name = "NONAME";
      info = "Uninitialized";
    }
    ~INT_VARIABLE ();            //for elist only

    operator INT32() {  //conversion
      return value;              //access as int
    }

    void set_value(            //assign to value
                   INT32 v) {  //value to set
      value = v;
    }

    const char *name_str() {  //access name
      return name;
    }

    const char *info_str() {  //access name
      return info;
    }

                                 //access list head
    static INT_VARIABLE_CLIST *get_head(); 

    static void print(            //print whole list
                      FILE *fp);  //file to print on

  private:
    INT32 value;                 //the variable
    const char *name;            //name of variable
    const char *info;            //for menus
    static INT_VAR_FROM copy;    //pre constructor
                                 //start  of list
    static INT_VARIABLE_CLIST head;
    static INT_VAR_TO replace;   //post constructor
};

class DLLSYM BOOL_VARIABLE;

CLISTIZEH (BOOL_VARIABLE)
class DLLSYM BOOL_VAR_FROM
{
  friend class BOOL_VAR_TO;
  public:
    BOOL_VAR_FROM();  //constructor
  private:
    BOOL_VARIABLE_CLIST list;    //copy of list
};

class DLLSYM BOOL_VAR_TO
{
  public:
    BOOL_VAR_TO();  //constructor
  private:
    BOOL_VARIABLE_CLIST dummy;
};

class DLLSYM BOOL_VARIABLE
{
  friend class BOOL_VAR_FROM;
  friend class BOOL_VAR_TO;
                                 //for setting values
  friend DLLSYM BOOL8 read_variables_file(const char *file);  //file to read

  public:
    BOOL_VARIABLE(                       //constructor
                  BOOL8 v,               //initial value
                  const char *vname,     //name of variable
                  const char *comment);  //info on variable

    BOOL_VARIABLE() {  //for elist only
      value = FALSE;
      name = "NONAME";
      info = "Uninitialized";
    }
    ~BOOL_VARIABLE ();           //for elist only

    operator BOOL8() {  //conversion
      return value;              //access as int
    }

    void set_value(            //assign to value
                   BOOL8 v) {  //value to set
      value = v;
    }

    const char *name_str() {  //access name
      return name;
    }

    const char *info_str() {  //access name
      return info;
    }

                                 //access list head
    static BOOL_VARIABLE_CLIST *get_head(); 

    static void print(            //print whole list
                      FILE *fp);  //file to print on

  private:
    BOOL8 value;                 //the variable
    const char *name;            //name of variable
    const char *info;            //for menus
    static BOOL_VAR_FROM copy;   //pre constructor
                                 //start  of list
    static BOOL_VARIABLE_CLIST head;
    static BOOL_VAR_TO replace;  //post constructor
};

class DLLSYM STRING_VARIABLE;

CLISTIZEH (STRING_VARIABLE)
class DLLSYM STRING_VAR_FROM
{
  friend class STRING_VAR_TO;
  public:
    STRING_VAR_FROM();  //constructor
  private:
    STRING_VARIABLE_CLIST list;  //copy of list
};

class DLLSYM STRING_VAR_TO
{
  public:
    STRING_VAR_TO();  //constructor
  private:
    STRING_VARIABLE_CLIST dummy;
};

class DLLSYM STRING_VARIABLE
{
  friend class STRING_VAR_TO;
  friend class STRING_VAR_FROM;
                                 //for setting values
  friend DLLSYM BOOL8 read_variables_file(const char *file);  //file to read

  public:
    STRING_VARIABLE(                       //constructor
                    const char *v,         //initial value
                    const char *vname,     //name of variable
                    const char *comment);  //info on variable

    STRING_VARIABLE() {  //for elist only
      name = "NONAME";
      info = "Uninitialized";
    }
    ~STRING_VARIABLE ();         //for elist only

                                 //conversion
    operator const STRING &() { 
      return value;              //access as int
    }

    void set_value(             //assign to value
                   STRING v) {  //value to set
      value = v;
    }

    const char *string() const {  //get string
      return value.string ();
    }

    const char *name_str() {  //access name
      return name;
    }

    const char *info_str() {  //access name
      return info;
    }

                                 //access list head
    static STRING_VARIABLE_CLIST *get_head(); 

    static void print(            //print whole list
                      FILE *fp);  //file to print on

  private:
    STRING value;                //the variable
    const char *name;            //name of variable
    const char *info;            //for menus
    static STRING_VAR_FROM copy; //pre constructor
                                 //start  of list
    static STRING_VARIABLE_CLIST head;
    static STRING_VAR_TO replace;//post constructor
};

class DLLSYM double_VARIABLE;

CLISTIZEH (double_VARIABLE)
class DLLSYM double_VAR_FROM
{
  friend class double_VAR_TO;
  public:
    double_VAR_FROM();  //constructor
  private:
    double_VARIABLE_CLIST list;  //copy of list
};

class DLLSYM double_VAR_TO
{
  public:
    double_VAR_TO();  //constructor
  private:
    double_VARIABLE_CLIST dummy;
};

class DLLSYM double_VARIABLE
{
  friend class double_VAR_TO;
  friend class double_VAR_FROM;
                                 //for setting values
  friend DLLSYM BOOL8 read_variables_file(const char *file);  //file to read

  public:
    double_VARIABLE(                       //constructor
                    double v,              //initial value
                    const char *vname,     //name of variable
                    const char *comment);  //info on variable

    double_VARIABLE() {  //for elist only
      value = 0.0;
      name = "NONAME";
      info = "Uninitialized";
    }
    ~double_VARIABLE ();         //for elist only

    operator double() {  //conversion
      return value;              //access as int
    }

    void set_value(             //assign to value
                   double v) {  //value to set
      value = v;
    }

    const char *name_str() {  //access name
      return name;
    }

    const char *info_str() {  //access name
      return info;
    }

                                 //access list head
    static double_VARIABLE_CLIST *get_head(); 

    static void print(            //print whole list
                      FILE *fp);  //file to print on

  private:
    double value;                //the variable
    const char *name;            //name of variable
    const char *info;            //for menus
    static double_VAR_FROM copy; //pre constructor
                                 //start  of list
    static double_VARIABLE_CLIST head;
    static double_VAR_TO replace;//post constructor
};

/*************************************************************************
 * NOTE ON DEFINING VARIABLES
 *
 * For our normal code, the ***_VAR and ***_EVAR macros for variable
 * definitions are identical.  HOWEVER, for the code version to ship to NEVADA
 * (or anywhere else where we want to hide the majority of variables) the
 * **_VAR macros are changed so that the "#name" and "comment" parameters
 * to the variable constructor are changed to empty strings.  This prevents the
 * variable name or comment string appearing in the object code file (after it
 * has gone through strip).
 *
 * Certain variables can remain EXPOSED and hence be used in config files given
 * to UNLV. These are variable which have been declared with the ***_EVAR
 * macros.
 *
 *************************************************************************/

/* SECURE_NAMES is defined in senames.h when necessary */
#ifdef SECURE_NAMES

#define INT_VAR(name,val,comment)						/*make INT_VARIABLE*/\
	INT_VARIABLE			name(val,"","")

#define BOOL_VAR(name,val,comment)						/*make BOOL_VARIABLE*/\
	BOOL_VARIABLE			name(val,"","")

#define STRING_VAR(name,val,comment)					/*make STRING_VARIABLE*/\
	STRING_VARIABLE			name(val,"","")

#define double_VAR(name,val,comment)					/*make double_VARIABLE*/\
	double_VARIABLE			name(val,"","")

#else

#define INT_VAR(name,val,comment)						/*make INT_VARIABLE*/\
	INT_VARIABLE			name(val,#name,comment)

#define BOOL_VAR(name,val,comment)						/*make BOOL_VARIABLE*/\
	BOOL_VARIABLE			name(val,#name,comment)

#define STRING_VAR(name,val,comment)					/*make STRING_VARIABLE*/\
	STRING_VARIABLE			name(val,#name,comment)

#define double_VAR(name,val,comment)					/*make double_VARIABLE*/\
	double_VARIABLE			name(val,#name,comment)
#endif

#define INT_VAR_H(name,val,comment)						/*declare one*/\
	INT_VARIABLE			name

#define BOOL_VAR_H(name,val,comment)					/*declare one*/\
	BOOL_VARIABLE			name

#define STRING_VAR_H(name,val,comment)					/*declare one*/\
	STRING_VARIABLE			name

#define double_VAR_H(name,val,comment)					/*declare one*/\
	double_VARIABLE			name

#define INT_EVAR(name,val,comment)						/*make INT_VARIABLE*/\
	INT_VARIABLE			name(val,#name,comment)

#define INT_EVAR_H(name,val,comment)					/*declare one*/\
	INT_VARIABLE			name

#define BOOL_EVAR(name,val,comment)						/*make BOOL_VARIABLE*/\
	BOOL_VARIABLE			name(val,#name,comment)

#define BOOL_EVAR_H(name,val,comment)					/*declare one*/\
	BOOL_VARIABLE			name

#define STRING_EVAR(name,val,comment)					/*make STRING_VARIABLE*/\
	STRING_VARIABLE			name(val,#name,comment)

#define STRING_EVAR_H(name,val,comment)					/*declare one*/\
	STRING_VARIABLE			name

#define double_EVAR(name,val,comment)					/*make double_VARIABLE*/\
	double_VARIABLE			name(val,#name,comment)

#define double_EVAR_H(name,val,comment)					/*declare one*/\
	double_VARIABLE			name
#endif