gcc/testsuite/c-c++-common/Wconversion-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Wconversion" } */
   3
   4 typedef char T;
   5
   6 void g()
   7 {
   8   char c = 300; /* { dg-warning "conversion from .int. to .char. changes value from .300. to .44." } */
   9   T t = 300; /* { dg-warning "conversion from .int. to .T. {aka .char.} changes value from .300. to .44." } */
  10   signed char sc = 300; /* { dg-warning "conversion from .int. to .signed char. changes value from .300. to .44." } */
  11   unsigned char uc = 300; /* { dg-warning "conversion from .int. to .unsigned char. changes value from .300. to .44." } */
  12   unsigned char uc2 = 300u; /* { dg-warning "conversion from .unsigned int. to .unsigned char. changes value from .300. to .44." } */
  13   signed char c2 = (double)1.0 + 200; /* { dg-warning "overflow in conversion from .double. to .signed char. changes value from .2.01e\\+2. to .127." } */
  14 }