llvm-project

Commit Graph

Author	SHA1	Message	Date
Tim Northover	0241637c0e	Sema: disable implicit conversion from _Complex to real types in C++. Converting a _Complex type to a real one simply discards the imaginary part. This can easily lead to loss of information so for safety (and GCC compatibility) this patch disallows that when the conversion would be implicit. The one exception is bool, which actually compares both real and imaginary parts and so is safe. llvm-svn: 310427	2017-08-08 23:18:05 +00:00
Richard Trieu	beffb833dc	Make -Wabsolute-value C++-aware. Warn on std::abs() with unsigned argument. Suggest std::abs as replacement for the C absolute value functions. Suggest C++ headers if the specific std::abs overload is not found. llvm-svn: 206340	2014-04-15 23:47:53 +00:00

Author

SHA1

Message

Date

Tim Northover

0241637c0e

Sema: disable implicit conversion from _Complex to real types in C++.

Converting a _Complex type to a real one simply discards the imaginary part.
This can easily lead to loss of information so for safety (and GCC
compatibility) this patch disallows that when the conversion would be implicit.

The one exception is bool, which actually compares both real and imaginary
parts and so is safe.

llvm-svn: 310427

2017-08-08 23:18:05 +00:00

Richard Trieu

beffb833dc

Make -Wabsolute-value C++-aware.

Warn on std::abs() with unsigned argument.
Suggest std::abs as replacement for the C absolute value functions.
Suggest C++ headers if the specific std::abs overload is not found.

llvm-svn: 206340

2014-04-15 23:47:53 +00:00

2 Commits