[avr-chat] casting problems?

[Steve Franks]

Hi all,

 

Anybody care to take a stab at why:

 

#include <stdint.h>

__inline__ void rx_addr(uint8_t a){tx( (uint8_t)(0x40) | a );}

 

Gives me:

 

C:/projects/include/test.hpp:84: error: call of overloaded `tx(int)' is ambiguous

 

Given that I have both:

 

void tx(uint16_t)

void tx(uint8_t)

 

defined in test.hpp.

 

I think the problems started with the upgrade from winavr 2005 to winavr 2006.

 

Also, if I change to:

 

__inline__ void rx_addr(uint8_t a){tx( (uint8_t)(0x0040 | (uint16_t)(a)) );}

 

The project builds, and tx(uint8_t) is called correctly, but from using the debugger, I have discovered that the 0x10 I pass in goes out to tx() as 0x10, not 0x50 like it should be.

 

I have built with both -Os and -O0, so it's not an optimization issue (why do we always blame the optimizer ;)

 

???

 

I'm going crazy here.

 

Thanks,

Steve