can't convert char* to const char* !?

[Gernot Frisch]

GLcharARB* pC;
glShaderSourceARB(m_Shaders[index][2], 1, &pC, NULL);

error C2664: 'void (GLhandleARB,GLsizei,const GLcharARB ** ,const
GLint *)' :
cannot convert parameter 3 from 'GLcharARB **__w64 '
to 'const GLcharARB ** '
Conversion loses qualifiers

This works:
const GLcharARB** ppA;
memcpy(&ppA, &pVert, sizeof(char*));
glShaderSourceARB(m_Shaders[index][1], 1, ppA, NULL);

What have I done?

Using VC7.1 here.

 

[Marcus Kwok]

GLcharARB* pC;
glShaderSourceARB(m_Shaders[index][2], 1, &pC, NULL);

error C2664: 'void (GLhandleARB,GLsizei,const GLcharARB ** ,const
GLint *)' :
cannot convert parameter 3 from 'GLcharARB **__w64 '
to 'const GLcharARB ** '
Conversion loses qualifiers

This is covered in the FAQ:
http://www.parashift.com/c++-faq-lite/const-correctness.html#faq-18.17

 

[Kaz Kylheku]

cannot convert parameter 3 from 'GLcharARB **__w64 '
to 'const GLcharARB ** '
Conversion loses qualifiers

[ snip ]

What have I done?

You lied in your subject line.