r261633 - in /trunk/gcc: ChangeLog doc/extend.t...

[nickc@gcc.gnu.org]

Author: nickc
Date: Fri Jun 15 15:25:16 2018
New Revision: 261633

URL: https://gcc.gnu.org/viewcvs?rev=261633&root=gcc&view=rev
Log:
Force user provided warning and error messages to only occupy one line.

 	PR 84195
gcc: 	* tree.c (escaped_string): New class.  Converts an unescaped
 	string into its escaped equivalent.
 	(warn_deprecated_use): Use the new class to convert the
 	deprecation message, if present.
 	(test_escaped_strings): New self test.
 	(test_c_tests): Add test_escaped_strings.
 	* doc/extend.texi (deprecated): Add a note that the
 	deprecation message is affected by the -fmessage-length
 	option, and that control characters will be escaped.
 	(#pragma GCC error): Document this pragma.
 	(#pragma GCC warning): Likewise.
 	* doc/invoke.texi (-fmessage-length): Document this option's
 	effect on the #warning and #error preprocessor directives and
 	the deprecated attribute.
	
testsuite;
 	* gcc.c-torture/compile/pr84195.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr84195.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/doc/extend.texi
    trunk/gcc/doc/invoke.texi
    trunk/gcc/testsuite/ChangeLog