clang/test/C/drs/dr290.c

   1 /* RUN: %clang_cc1 -ast-dump %s | FileCheck %s
   2  */
   3
   4 /* WG14 DR290: no
   5  * FLT_EVAL_METHOD and extra precision and/or range
   6  *
   7  * We retain an implicit conversion based on the float eval method being used
   8  * instead of dropping it due to the explicit cast. See GH86304 and C23 6.5.5p7.
   9  */
  10
  11 #pragma clang fp eval_method(double)
  12 _Static_assert((float)(123.0F * 2.0F) == (float)246.0F, "");
  13
  14 // CHECK: StaticAssertDecl
  15 // CHECK-NEXT: ImplicitCastExpr {{.*}} '_Bool' <IntegralToBoolean>
  16 // CHECK-NEXT: BinaryOperator {{.*}} 'int' '=='
  17 // NB: the following implicit cast is incorrect.
  18 // CHECK-NEXT: ImplicitCastExpr {{.*}} 'double' <FloatingCast> FPEvalMethod=1
  19 // CHECK-NEXT: CStyleCastExpr {{.*}} 'float' <FloatingCast> FPEvalMethod=1
  20