CFunction Class Reference

#include <mathexpr_c.h>

Collaboration diagram for CFunction:

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List of all members.

Public Member Functions
	double_complex ((*pfuncval)(double_complex))
	CFunction ()
	CFunction (double_complex((*pfuncvalp)(double_complex)))
	CFunction (const COperation &opp, CVar *pvarp)
	CFunction (const COperation &opp, int nvarsp, CVar **ppvarp)
	CFunction (const CFunction &)
	~CFunction ()
CFunction &	operator= (const CFunction &)
void	SetName (const char *s)
double_complex	Val (double_complex) const
double_complex	Val (double_complex *) const
COperation	operator() (const COperation &)
Public Attributes
signed char	type
COperation	op
int	nvars
CVar **	ppvar
char *	name
Private Attributes
double_complex *	buf
Friends
int	operator== (const CFunction &, const CFunction &)

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Detailed Description

Definition at line 137 of file mathexpr_c.h.

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Constructor & Destructor Documentation

CFunction::CFunction

(

)

Definition at line 95 of file mathexpr_c.cpp.

References buf, ErrVal, name, NULL, nvars, op, ppvar, and type.

{
    type=-1;name=new char[1];name[0]=0;
    nvars=0;ppvar=NULL;pfuncval=NULL;op=ErrVal;buf=NULL;
}

CFunction::CFunction

(

double_complex((*pfuncvalp)(double_complex))

)

Definition at line 101 of file mathexpr_c.cpp.

References buf, ErrVal, name, NULL, nvars, op, ppvar, and type.

{
    type=0;pfuncval=pfuncvalp;name=new char[1];name[0]=0;
    nvars=1;ppvar=NULL;op=ErrVal;buf=NULL;
}

CFunction::CFunction	(	const COperation &	opp,
		CVar *	pvarp
	)

Definition at line 121 of file mathexpr_c.cpp.

References buf, double_complex(), name, nvars, ppvar, and type.

                                                     :op(opp)
{
    type=1;name=new char[1];name[0]=0;
    nvars=1;ppvar=new PCVar[1];ppvar[0]=pvarp;buf=new double_complex[1];
}

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CFunction::CFunction	(	const COperation &	opp,
		int	nvarsp,
		CVar **	ppvarp
	)

Definition at line 127 of file mathexpr_c.cpp.

References buf, double_complex(), name, NULL, nvars, ppvar, and type.

                                                                  :op(opp)
{
    type=1;name=new char[1];name[0]=0;
    nvars=nvarsp;
    if(nvars){
        ppvar=new PCVar[nvars];
        int i;for(i=0;i<nvars;i++)ppvar[i]=ppvarp[i];
        buf=new double_complex[nvars];
    }else {ppvar=NULL;buf=NULL;}
}

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CFunction::CFunction

(

const CFunction &

rfunc

)

Definition at line 107 of file mathexpr_c.cpp.

References buf, CopyStr(), double_complex(), name, NULL, nvars, op, ppvar, and type.

{
    if(this==&rfunc)return;
    type=rfunc.type;op=rfunc.op;
    pfuncval=rfunc.pfuncval;
    name=CopyStr(rfunc.name);
    nvars=rfunc.nvars;
    if(rfunc.ppvar!=NULL&&nvars){
        ppvar=new PCVar[nvars];
        int i;for(i=0;i<nvars;i++)ppvar[i]=rfunc.ppvar[i];
        buf=new double_complex[nvars];
    }else {ppvar=NULL;buf=NULL;}
}

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CFunction::~CFunction

(

)

Definition at line 138 of file mathexpr_c.cpp.

References buf, name, NULL, and ppvar.

{
    if(name!=NULL)delete[]name;
    if(ppvar!=NULL)delete[]ppvar;
    if(buf!=NULL)delete[]buf;
}

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Member Function Documentation

CFunction::double_complex

(

(*)(double_complex)

pfuncval

)

Referenced by CFunction(), operator=(), and Val().

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CFunction & CFunction::operator=

(

const CFunction &

rfunc

)

Definition at line 145 of file mathexpr_c.cpp.

References buf, CopyStr(), double_complex(), name, NULL, nvars, op, ppvar, and type.

{
    if(this==&rfunc)return *this;
    type=rfunc.type;op=rfunc.op;
    pfuncval=rfunc.pfuncval;
    delete[]name;
    name=CopyStr(rfunc.name);
    if(ppvar!=NULL)delete[]ppvar;
    ppvar=NULL;
    if(buf!=NULL)delete[]buf;
    buf=NULL;
    nvars=rfunc.nvars;
    if(type==1&&nvars){
        ppvar=new PCVar[nvars];buf=new double_complex[nvars];
        int i;for(i=0;i<nvars;i++)ppvar[i]=rfunc.ppvar[i];
    }
    return *this;
}

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void CFunction::SetName

(

const char *

s

)

Definition at line 164 of file mathexpr_c.cpp.

References CopyStr(), name, and NULL.

Referenced by main(), and COperation::NthMember().

{if(name!=NULL)delete[]name;name=CopyStr(s);}

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double_complex CFunction::Val

(

double_complex

x

)

const

Definition at line 167 of file mathexpr_c.cpp.

References double_complex(), ErrVal, nvars, op, type, and COperation::Val().

Referenced by ApplyRFunc().

{
    if(type==-1||nvars>=2)return ErrVal;
    if(type==0)return (*pfuncval)(x);
    double_complex xb=*(*ppvar)->pval,y;
    *(*ppvar)->pval=x;  // Warning : could cause trouble if this value is used in a parallel process
    y=op.Val();
    *(*ppvar)->pval=xb;
    return y;
}

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double_complex CFunction::Val

(

double_complex *

pv

)

const

Definition at line 178 of file mathexpr_c.cpp.

References buf, double_complex(), ErrVal, nvars, op, ppvar, CVar::pval, type, and COperation::Val().

{
    if(type==-1)return ErrVal;
    if(type==0)return (*pfuncval)(*pv);
    double_complex y;
    int i;
    for(i=0;i<nvars;i++){
        buf[i]=*ppvar[i]->pval;
        // Warning : could cause trouble if this value is used in a parallel process
        *ppvar[i]->pval=pv[i];
    }
    y=op.Val();
    for(i=0;i<nvars;i++)*ppvar[i]->pval=buf[i];
    return y;
}

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COperation CFunction::operator()

(

const COperation &

op

)

Definition at line 391 of file mathexpr_c.cpp.

References Fun, COperation::mmb2, COperation::op, and COperation::pfunc.

{
    /* Code to use to replace explcitly instead of using a pointer to
       if(nvars!=op.NMembers()||type==-1||type==0)return ErrVal;
       COperation op2=*pop;int i;
       CVar**ppvar2=new PCVar[nvars];char s[11]="";
       for(i=0;i<nvars;i++){
       sprintf(s,";var%i;",i);
       ppvar2[i]=new CVar(s,NULL);
       op2=op2.Substitute(*ppvar[i],(COperation)*ppvar2[i]);
       }
       for(i=0;i<nvars;i++){
       op2=op2.Substitute(*ppvar2[i],op.NthMember(i+1));
       delete ppvar2[i];
       }
       delete[]ppvar2;
       return op2;
    */
    COperation op2;op2.op=Fun;op2.pfunc=this;op2.mmb2=new COperation(op);
    return op2;
}

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Friends And Related Function Documentation

int operator==	(	const CFunction &	f1,
		const CFunction &	f2
	)			[friend]

Definition at line 730 of file mathexpr_c.cpp.

{
    if(f1.type!=f2.type)return 0;
    if(f1.type==-1)return 1; // Nonfunction==nonfunction
    if(f1.type==0)return (f1.pfuncval==f2.pfuncval&&EqStr(f1.name,f2.name));
    if(f1.op!=f2.op)return 0;
    if(!EqStr(f1.name,f2.name))return 0;
    if(f1.nvars!=f2.nvars)return 0;
    int i;
    for(i=0;i<f1.nvars;i++)if(!(*f1.ppvar[i]==*f2.ppvar[i]))return 0;
    return 1;
}

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Member Data Documentation

double_complex* CFunction::buf [private]

Definition at line 138 of file mathexpr_c.h.

Referenced by CFunction(), operator=(), Val(), and ~CFunction().

signed char CFunction::type

Definition at line 140 of file mathexpr_c.h.

Referenced by CFunction(), COperation::Diff(), COperation::DiffConj(), COperation::HasError(), COperation::NMembers(), COperation::NthMember(), operator=(), operator==(), and Val().

COperation CFunction::op

Definition at line 142 of file mathexpr_c.h.

Referenced by CFunction(), COperation::ContainFunc(), COperation::Diff(), COperation::DiffConj(), COperation::HasError(), COperation::NMembers(), COperation::NthMember(), operator=(), operator==(), and Val().

int CFunction::nvars

Definition at line 142 of file mathexpr_c.h.

Referenced by ApplyRFunc(), CFunction(), COperation::COperation(), COperation::Diff(), COperation::DiffConj(), COperation::NthMember(), operator=(), operator==(), and Val().

CVar** CFunction::ppvar

Definition at line 142 of file mathexpr_c.h.

Referenced by CFunction(), COperation::Diff(), COperation::DiffConj(), COperation::NthMember(), operator=(), operator==(), Val(), and ~CFunction().

char* CFunction::name

Definition at line 143 of file mathexpr_c.h.

Referenced by CFunction(), COperation::Expr(), IsFunction(), IsVar(), COperation::NthMember(), operator=(), operator==(), SetName(), and ~CFunction().

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The documentation for this class was generated from the following files:

• src/thirdparty/mathexpr/mathexpr_c.h
• src/thirdparty/mathexpr/mathexpr_c.cpp

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