Auto

(with signal storage reuse optimizations on)

In model.c or model.cpp

real_T rtb_sumSig;

rtb_sumSig = signal_examp_U.In1 +
  signal_examp_P.Constant_Value;
rtb_sumSig *=
  signal_examp_P.Gain_Gain;
signal_examp_Y.Out1 = rtb_sumSig;

Test point (for sumSig only)

In model.h

typedef struct
_BlockIO_signal_examp 
{
  real_T sumSig;
}
BlockIO_signal_examp;

In model.c or model.cpp

BlockIO_signal_examp
signal_examp_B; 
real_T rtb_gainSig;

signal_examp_B.sumSig =
  signal_examp_U.In1 +
  signal_examp_P.Constant_Value;
rtb_gainSig = 
  signal_examp_B.sumSig * 
  signal_examp_P.Gain_Gain;
signal_examp_Y.Out1 = rtb_gainSig;

ExportedGlobal (for sumSig only)

In model.h

extern real_T sumSig;

In model.c or model.cpp

real_T sumSig; 
real_T rtb_gainSig; 

sumSig = signal_examp_U.In1 +
signal_examp_P.Constant_Value;
rtb_gainSig = sumSig *
  signal_examp_P.Gain_Gain;
signal_examp_Y.Out1 = rtb_gainSig;

ImportedExtern

In model_private.h

extern real_T sumSig;

In model.c or model.cpp

real_T rtb_gainSig;

sumSig = signal_examp_U.In1 +
signal_examp_P.Constant_Value;
rtb_gainSig = sumSig *
  signal_examp_P.Gain_Gain;
signal_examp_Y.Out1 = rtb_gainSig;

ImportedExternPointer

In model_private.h

extern real_T *sumSig;

In model.c or model.cpp

real_T rtb_gainSig;

(*sumSig) = signal_examp_U.In1 +
  signal_examp_P.Constant_Value;
rtb_gainSig = (*sumSig) *
  signal_examp_P.Gain_Gain;
signal_examp_Y.Out1 = rtb_gainSig;