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| author | Kaveh R. Ghazi <ghazi@caip.rutgers.edu> | 2000-07-12 21:03:29 +0000 |
|---|---|---|
| committer | Kaveh Ghazi <ghazi@gcc.gnu.org> | 2000-07-12 21:03:29 +0000 |
| commit | 1326a48bac7fc293be6e35e1e398cd897e6d7916 (patch) | |
| tree | 239fe82df92b5becd01501ce3dc7a59b3ac1f02c /gcc | |
| parent | 733dee92dc7e68e682501d06d68c09c1677ffe80 (diff) | |
| download | gcc-1326a48bac7fc293be6e35e1e398cd897e6d7916.zip gcc-1326a48bac7fc293be6e35e1e398cd897e6d7916.tar.gz gcc-1326a48bac7fc293be6e35e1e398cd897e6d7916.tar.bz2 | |
c-common.c (combine_strings): Emit a pedantic warning when a string length is greater than the minimum ANSI C...
* c-common.c (combine_strings): Emit a pedantic warning when a
string length is greater than the minimum ANSI C is required
to support.
From-SVN: r34999
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/c-common.c | 5 |
2 files changed, 11 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index eed3f14..bc3f53b 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2000-07-12 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> + + * c-common.c (combine_strings): Emit a pedantic warning when a + string length is greater than the minimum ANSI C is required + to support. + Wed Jul 12 13:24:30 2000 Jeffrey A Law (law@cygnus.com) * pa/xm-pa64.h (NO_SYS_SIGLIST): Kill. diff --git a/gcc/c-common.c b/gcc/c-common.c index b6cf58e..f72ec47 100644 --- a/gcc/c-common.c +++ b/gcc/c-common.c @@ -294,6 +294,7 @@ combine_strings (strings) int wide_flag = 0; int wchar_bytes = TYPE_PRECISION (wchar_type_node) / BITS_PER_UNIT; int nchars; + const int nchars_max = flag_isoc99 ? 4095 : 509; if (TREE_CHAIN (strings)) { @@ -373,6 +374,10 @@ combine_strings (strings) /* Compute the number of elements, for the array type. */ nchars = wide_flag ? length / wchar_bytes : length; + if (pedantic && nchars > nchars_max) + pedwarn ("string length `%d' is greater than the minimum length `%d' ANSI C is required to support", + nchars, nchars_max); + /* Create the array type for the string constant. -Wwrite-strings says make the string constant an array of const char so that copying it to a non-const pointer will get a warning. |