sdcc/support/regression/tests/bug-460010.c

   1 /* bug 460010
   2  */
   3 #include <testfwk.h>
   4
   5 #ifdef __SDCC
   6 #if defined(__SDCC_pic16) || defined(__SDCC_pdk14) || defined(__SDCC_pdk15)
   7 #define ADDRESS 0x0070
   8 #else
   9 #define ADDRESS 0xa000
  10 #endif  /* SDCC_pic16 */
  11 #endif  /* SDCC */
  12
  13 void
  14 func (unsigned char a)
  15 {
  16   UNUSED (a);
  17 }
  18
  19 void
  20 testBadPromotion (void)
  21 {
  22 #ifdef __SDCC
  23   unsigned char c = *((unsigned __xdata char*)(ADDRESS));
  24 #else
  25   unsigned char loc_c;
  26   unsigned char c = *(unsigned char*)&loc_c;
  27 #endif
  28
  29   func (c);
  30
  31   c += '0';     /* is evaluated as an 8-bit expr */
  32
  33   func (c);
  34
  35   c += 'A'-'0'; /* is a 16-bit expr ??? */
  36
  37   func (c);
  38 }