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| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-10-10 05:17:41 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-10-10 05:17:41 +0000 |
| commit | b7e644ba4600ba3ba49b889d0ddbde68ff3a6f2a (patch) | |
| tree | a00089698e35510504f9a3c898a4eb7641f9ed8f | |
| parent | 3843b057af1305e615283cb83bc74b4080598996 (diff) | |
| download | gcc-b7e644ba4600ba3ba49b889d0ddbde68ff3a6f2a.tar.gz | |
* c-common.c (check_format_info): Warn if format string isn't a
string literal.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@29881 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/c-common.c | 14 |
2 files changed, 17 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2257112c707..da2340a6fea 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Sat Oct 9 23:16:01 1999 Ken Raeburn <raeburn@mit.edu> + + * c-common.c (check_format_info): Warn if format string isn't a + string literal. + Sat Oct 9 23:04:02 1999 Jonathan Larmour <jlarmour@cygnus.co.uk> * configure.in (arm*-*-*): Don't let autoconf remove brackets diff --git a/gcc/c-common.c b/gcc/c-common.c index afdea93853a..3e9d962bde9 100644 --- a/gcc/c-common.c +++ b/gcc/c-common.c @@ -1488,10 +1488,20 @@ check_format_info (info, params) return; } if (TREE_CODE (format_tree) != ADDR_EXPR) - return; + { + /* The user may get multiple warnings if the supplied argument + isn't even a string pointer. */ + warning ("format not a string literal, argument types not checked"); + return; + } format_tree = TREE_OPERAND (format_tree, 0); if (TREE_CODE (format_tree) != STRING_CST) - return; + { + /* The user may get multiple warnings if the supplied argument + isn't even a string pointer. */ + warning ("format not a string literal, argument types not checked"); + return; + } format_chars = TREE_STRING_POINTER (format_tree); format_length = TREE_STRING_LENGTH (format_tree); if (format_length <= 1) |