C / C++ / MFC

Vaclav_ wrote:

char *TXBuffer = (char*) 0x04;

unsigned char TXBuffer = 0x04; // a single character
function(&TXBuffer); // use the addressOf operator to pass the address of the character to the function 

// or

unsigned char TXBuffer[] = { 0x04, 0 }; // multiple characters
function(TXBuffer); // TXBuffer is an array, so its name will be translated to its address by the compiler.


// the receiving function should be coded as
xxx function(unsigned char* buffer)
{
    // xxx is the return type
    // the function must know how many characters will be sent in the buffer
    // either a number that is always the same, or the length passed as a second parameter.
    // to access items from the buffer you use:
    unsigned char value = *buffer; // get the first value
    buffer++;                      // increment the pointer to the next element (if more than 1)
    value = *buffer;               // get the next value 
}

focusdoit wrote:

char str123[] = "Test123\r\n"; //Global
UART_print(strtest); //in a loop

focusdoit wrote:

But when I try code:

char str123[] = "Test123\r\n";  //Global
UART_print(strtest); //in a loop

Faith Burnett wrote:

To be honest I’m new to this and thought it would simply print out two right aligned pyramids with a gap in between.

for (int i = 0; i < h; i++)
{
    ...
    // Print out this many spaces
    for (int j = 0; j < h - i - 1; j++)
    ...
    // Print left hashes
    for (int j = 0; j < i + 1; j++)
    ...
    // Print right hashes
    for (int j = 0; j < i + 1; j++)
    ...
}

cout << hex << (int)buf[0] << endl;

Vaclav_ wrote:

I am having issues verifying that the struct has all of the necessary data.

obj = static_cast<Test *>(m->obj); // static_cast is C++ not C
obj->funcref(&h,&b);  // The C compiler may not generate what you expect here
}

wrap_funcref(&p,&nn);	//not sure does not work	

extern "C" wrapper_API void wrap_funcref(wrap_t *m, int *h, BSTR* b); //?

Lapmangfpt wrote:

j = find(MyList[i].key.begin(), MyList[i].key.end(), tkey); // ERROR 1
// If not, add key and content
if (j == -1) // ERROR 2