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author	neil <neil@138bc75d-0d04-0410-961f-82ee72b054a4>
	Tue, 23 Oct 2001 18:14:31 +0000 (18:14 +0000)
committer	neil <neil@138bc75d-0d04-0410-961f-82ee72b054a4>
	Tue, 23 Oct 2001 18:14:31 +0000 (18:14 +0000)
commit	bd08a4e696f9fc58eb5a47250566867849a358e4
tree	a86518d1f2373ba547d08bd0867d006b5db75f24	tree \| snapshot
parent	753a360f09c905c575eb1a106827a2e74c2e6bdc	commit \| diff

* c-common.c (warn_div_by_zero): New.
* c-common.h (warn_div_by_zero): New.
* c-decl.c (c_decode_option): Take it on the command line.
* c-typeck.c (build_binary_op): Warn about division by zero.
* doc/invoke.texi: Document the new command line option, fix
documentation of -Wmultichar.
* testsuite/gcc.dg/divbyzero.c: New tests.
* testsuite/gcc.dg/noncompile/20010524-1.c: Update.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@46439 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/ChangeLog		diff \| blob \| history
gcc/c-common.c		diff \| blob \| history
gcc/c-common.h		diff \| blob \| history
gcc/c-decl.c		diff \| blob \| history
gcc/c-typeck.c		diff \| blob \| history
gcc/doc/invoke.texi		diff \| blob \| history
gcc/testsuite/gcc.dg/divbyzero.c	[new file with mode: 0644]	blob
gcc/testsuite/gcc.dg/noncompile/20010524-1.c		diff \| blob \| history

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