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Re: C++ name with leading underscore character not Compiling


Thanks for the language correction. However the compiler is braking.
Here is some of the code and the error messages reported in compilation.

I have tested this on two different computers and the same error messages were
reported.  When I changed the _N to N or something else the
compilation continued
on to the next error. Hence it is an underscore problem.

g++ -Wall -I. -I../misclib/ -I../graphicslib/ -I../mathlib/  -c
../graphicslib/graphmisc.cpp
In file included from ../graphicslib/graphmisc.cpp:3:
../graphicslib/graphmisc.h:561: error: expected `,' or `...' before
numeric constant
../graphicslib/graphmisc.h:570: error: expected `,' or `...' before
numeric constant
../graphicslib/graphmisc.h:574: error: expected `,' or `...' before
numeric constant
../graphicslib/graphmisc.cpp:232: error: expected `,' or `...' before
numeric constant
../graphicslib/graphmisc.cpp:256: error: expected `,' or `...' before
numeric constant
../graphicslib/graphmisc.cpp: In constructor
`gobjMyCircle::gobjMyCircle(doublec, doublec, doublec, uintc)':
../graphicslib/graphmisc.cpp:258: error: default argument missing for
parameter 4 of `gobjMyCircle::gobjMyCircle(doublec, doublec, doublec,
uintc)'
../graphicslib/graphmisc.cpp: At global scope:
../graphicslib/graphmisc.cpp:299: error: expected `,' or `...' before
numeric constant
make: *** [graphmisc.o] Error 1



/*!
\brief Sampled circle or ellipse.

This can be used in drawing circles of different sizes
by gobjMyCircleDraw .
*/
class gobjMyCircle : public gobj
{
public:

 /** The number of sampled points. */
 uintc N;

 /** The samples x values. */
 float * const ptx;
 /** The samples y values. */
 float * const pty;

 /** General arcs can be created by changing the angle
    interval [theta0,theta1].  Ellipses can be made
    by changing the axis lengths.
  */
 gobjMyCircle
 (
   doublec theta0,
   doublec theta1,
   doublec xaxislength,
   doublec yaxislength,
   uintc _N=360
 );

 /** Create an arc. */
 gobjMyCircle
 (
   doublec theta0,
   doublec theta1,
   doublec radius=1.0,
   uintc _N=360
 );

Thanks for your response, I will think twice before using an
underscore, even though
I do no agree with it being reserved. It is very important to have
programs that
compile across other platforms.

Chelton Evans

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