Conversion from unsigned char* to unsigned char

[santosh.kumar]

hi

in my application there is some error:cast from unsigned char* to unsigned char..

how to convert unsigned char* to unsigned char.

if anybody knows then reply

[marcel]

Well, that (unsigned char*) variable can be either a pointer to a single char or can be an array.
Depends on how it is allocated.

Anyway, you have to dereference it:

unsigned char chr = 23;
unsigned char* ptrChar = &chr; // pointer to a char
unsigned char* arrayChar = new char[20]; //an array
unsigned char valChar = *ptrChar; // now val char equals 23
unsigned char firstChar = *arrayChar; //now firstChar equals arrayChar[0].

unsigned char chr = 23;
unsigned char* ptrChar = &chr; // pointer to a char
unsigned char* arrayChar = new char[20]; //an array
unsigned char valChar = *ptrChar; // now val char equals 23
unsigned char firstChar = *arrayChar; //now firstChar equals arrayChar[0].

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So, everything depends on how the pointer was allocated.

BTW, I think you should have posted in the general programming forum.

Regards