misc: Add extern "C" blocks to headers

[simavr] / simavr / sim / avr_twi.h

diff --git a/simavr/sim/avr_twi.h b/simavr/sim/avr_twi.h
index 5a84ba9..e21e3b6 100644 (file)
--- a/simavr/sim/avr_twi.h
+++ b/simavr/sim/avr_twi.h
@@ -22,6 +22,10 @@
 #ifndef AVR_TWI_H_
 #define AVR_TWI_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include "sim_avr.h"
 
 //#include "sim_twi.h"
@@ -97,18 +101,14 @@ avr_twi_init(
  * Create a message value for twi including the 'msg' bitfield,
  * 'addr' and data. This value is what is sent as the IRQ value
  */
-static inline uint32_t
+uint32_t
 avr_twi_irq_msg(
                uint8_t msg,
                uint8_t addr,
-               uint8_t data)
-{
-       avr_twi_msg_irq_t _msg = {
-                       .u.twi.msg = msg,
-                       .u.twi.addr = addr,
-                       .u.twi.data = data,
-       };
-       return _msg.u.v;
-}
+               uint8_t data);
+
+#ifdef __cplusplus
+};
+#endif
 
 #endif /* AVR_TWI_H_ */