| George Burgess IV | 148e0d3 | 2015-10-29 00:28:52 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -verify -fsyntax-only %s -Wdouble-promotion |
| 2 | |
| 3 | float ReturnFloatFromDouble(double d) { |
| 4 | return d; |
| 5 | } |
| 6 | |
| 7 | float ReturnFloatFromLongDouble(long double ld) { |
| 8 | return ld; |
| 9 | } |
| 10 | |
| 11 | double ReturnDoubleFromLongDouble(long double ld) { |
| 12 | return ld; |
| 13 | } |
| 14 | |
| 15 | double ReturnDoubleFromFloat(float f) { |
| 16 | return f; //expected-warning{{implicit conversion increases floating-point precision: 'float' to 'double'}} |
| 17 | } |
| 18 | |
| 19 | long double ReturnLongDoubleFromFloat(float f) { |
| 20 | return f; //expected-warning{{implicit conversion increases floating-point precision: 'float' to 'long double'}} |
| 21 | } |
| 22 | |
| 23 | long double ReturnLongDoubleFromDouble(double d) { |
| 24 | return d; //expected-warning{{implicit conversion increases floating-point precision: 'double' to 'long double'}} |
| 25 | } |
| 26 | |
| 27 | void Convert(float f, double d, long double ld) { |
| 28 | d = f; //expected-warning{{implicit conversion increases floating-point precision: 'float' to 'double'}} |
| 29 | ld = f; //expected-warning{{implicit conversion increases floating-point precision: 'float' to 'long double'}} |
| 30 | ld = d; //expected-warning{{implicit conversion increases floating-point precision: 'double' to 'long double'}} |
| 31 | f = d; |
| 32 | f = ld; |
| 33 | d = ld; |
| 34 | } |