operator-bitwise.c   [plain text]

/* { dg-do compile } */
/* { dg-options "-std=gnu99" } */

/* C99 6.5.10: Bitwise AND operator.
   C99 6.5.11: Bitwise exclusive OR operator.
   C99 6.5.12: Bitwise inclusive OR operator.

   Test that these operators do not accept decimal float operands.  */

extern void abort (void);

#define OPERATE(OPRD1,OPRT,OPRD2)		\
do						\
{						\
  OPRD1 OPRT OPRD2;				\
} while (0)



#define DECIMAL_BITWISE_OPERATOR(OPRT,OPRD)	\
do						\
{						\
OPERATE(OPRD,OPRT,1);				\
OPERATE(OPRD,OPRT,0);				\
OPERATE(OPRD,OPRT,0x15);			\
OPERATE(0,OPRT,OPRD);				\
OPERATE(1,OPRT,OPRD);				\
OPERATE(0x15,OPRT,OPRD);			\
} while (0)

void operator_notfor_decimal()
{
  _Decimal32 d32;
  _Decimal64 d64;
  _Decimal128 d128;

  /* C99 Section 6.5.7 Bitwise shift operators.  Operands must have
     integer type (which the decimal float types are not).  */

  d32 << 1;   /* { dg-error "invalid operands to binary" } */
  d32 >> 1;   /* { dg-error "invalid operands to binary" } */
  d64 << 1;   /* { dg-error "invalid operands to binary" } */
  d64 >> 1;   /* { dg-error "invalid operands to binary" } */
  d128 << 1;  /* { dg-error "invalid operands to binary" } */
  d128 >> 1;  /* { dg-error "invalid operands to binary" } */

  DECIMAL_BITWISE_OPERATOR(&,d32); /* { dg-error "invalid operands to binary" } */
  DECIMAL_BITWISE_OPERATOR(&,d64); /* { dg-error "invalid operands to binary" } */
  DECIMAL_BITWISE_OPERATOR(&,d128); /* { dg-error "invalid operands to binary" } */

  /* C99 Section 6.5.{10,11,12} Bitwise operator.  Constraints: Each of
   the operands shall have integer type.  DFP type is reject by compiler
   when bitwise operation is performed.  */

  DECIMAL_BITWISE_OPERATOR(&,d32); /* { dg-error "invalid operands to binary" } */
  DECIMAL_BITWISE_OPERATOR(&,d64); /* { dg-error "invalid operands to binary" } */
  DECIMAL_BITWISE_OPERATOR(&,d128); /* { dg-error "invalid operands to binary" } */

  DECIMAL_BITWISE_OPERATOR(|,d32); /* { dg-error "invalid operands to binary" } */
  DECIMAL_BITWISE_OPERATOR(|,d64); /* { dg-error "invalid operands to binary" } */
  DECIMAL_BITWISE_OPERATOR(|,d128); /* { dg-error "invalid operands to binary" } */

  DECIMAL_BITWISE_OPERATOR(^,d32); /* { dg-error "invalid operands to binary" } */
  DECIMAL_BITWISE_OPERATOR(^,d64); /* { dg-error "invalid operands to binary" } */
  DECIMAL_BITWISE_OPERATOR(^,d128); /* { dg-error "invalid operands to binary" } */
}