5 Commits

Author	SHA1	Message	Date
Richard Smith	d7293d7fcb	Implement C++'s restrictions on the type of an expression passed to a vararg ... function: it can't be 'void' and it can't be an initializer list. We give a hard error for these rather than treating them as undefined behavior (we can and probably should do the same for non-POD types in C++11, but as of this change we don't). Slightly rework the checking of variadic arguments in a function with a format attribute to ensure that certain kinds of format string problem (non-literal string, too many/too few arguments, ...) don't suppress this error. llvm-svn: 187735	2013-08-05 18:49:43 +00:00
Richard Smith	4060f77462	PR13099: Teach -Wformat about raw string literals, UTF-8 strings and Unicode escape sequences. ... llvm-svn: 158390	2012-06-13 05:37:23 +00:00
David Blaikie	59fe3f89cb	Support all null pointer literals in format strings. ... llvm-svn: 150276	2012-02-10 21:07:25 +00:00
Ted Kremenek	e7b9d4342b	Tighten format string diagnostic and make it a bit clearer (and a bit closer to GCC's). ... llvm-svn: 148579	2012-01-20 21:52:58 +00:00
Hans Wennborg	e5f554ac48	Support the 'a' scanf length modifier as an extension in C++. ... It should not be supported in C++11, since that uses the C99 standard library, in which 'a' is a format specifier. llvm-svn: 147310	2011-12-28 13:10:50 +00:00