problem with const pointers

You could declare currentColor as a pointer to float...

float *currentColor=White;

If you want to change the currentColor to red, just do:

currentColor=Red;

Thanks for the reply~!

I gave this a shot but its giving me an invalid initializer on that line when I compile:

// global colors
const float Grey[]	= { 0.5, 0.5, 0.5 };
const float Red[]	    = { 1.0, 0.0, 0.0 };
const float Green[]	= { 0.0, 1.0, 0.0 };
const float Blue[]	= { 0.0, 0.0, 1.0 };
const float Magenta[]	= { 1.0, 0.0, 1.0 };
const float Cyan[]	= { 0.0, 1.0, 1.0 };
const float Yellow[]	= { 1.0, 1.0, 0.0 };
const float White[]	= { 1.0, 1.0, 1.0 };
const float Orange[]  = { 1.0, 0.5, 0.0 };
const float Purple[]  = { 0.4, 0.0, 0.7 }; 
const float Black[]   = { 0.0, 0.0, 0.0 };

float *currentColor[] = White;
 

I''m using g++ if that helps any :s
Thanks!

I''m not entirely sure about this, but probably since your color arrays are all const, if you point currentColor to one of them, that memory is still const, so you shouldn''t be able to change it... (I know... my explanation sucks...)

anyways, since more than likely that little blurb makes next to no sense whatsoever, here''s a possible solution

float* currentColor = const_cast( White );


dunno if that''ll actually work, but it might... other than that, I think you''d just have to make currentColor a separate array in memory and copy values into it

float currentColor[3];
memcpy( currentColor, Magenta, 3 * sizeof( float ) );

or whatever...

quote:

---

float *currentColor[] = White;

---

Try:

float *currentColor=White;

without the [].

[edited by - danielf on January 31, 2004 5:56:16 PM]

wooot! finally got it. I needed a pointer to a constant float:

.
.
.
const float White[]	= { 1.0, 1.0, 1.0 };
const float Orange[]  = { 1.0, 0.5, 0.0 };
const float Purple[]  = { 0.4, 0.0, 0.7 }; 
const float Black[]   = { 0.0, 0.0, 0.0 };

float const *currentColor = White;
 

lol mixing const and pointers is just coming back to me know. Thanks guys!!





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