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authorKaveh R. Ghazi <ghazi@caip.rutgers.edu>2000-08-10 15:21:18 +0000
committerKaveh Ghazi <ghazi@gcc.gnu.org>2000-08-10 15:21:18 +0000
commit7da92c086fa7008497a8f959418c7ce05e048d24 (patch)
tree30a07535a16520798c29038412313aa0bf2aecde /gcc/c-lex.c
parentb498d041faed872eb206182e619ebcc22327a2c9 (diff)
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c-lex.c (parse_float, yylex): For -Wtraditional, issue a warning about non-traditional numeric constant suffixes.
* c-lex.c (parse_float, yylex): For -Wtraditional, issue a warning about non-traditional numeric constant suffixes. * cppexp.c (parse_number): Likewise. * invoke.texi: (-Wtraditional): Document new behavior. From-SVN: r35607
Diffstat (limited to 'gcc/c-lex.c')
-rw-r--r--gcc/c-lex.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/c-lex.c b/gcc/c-lex.c
index 9cbbc4d..77442e3 100644
--- a/gcc/c-lex.c
+++ b/gcc/c-lex.c
@@ -1109,12 +1109,16 @@ parse_float (data)
case 'f': case 'F':
if (fflag)
error ("more than one `f' in numeric constant");
+ else if (warn_traditional && !in_system_header)
+ warning ("traditional C rejects the `%c' suffix", args->c);
fflag = 1;
break;
case 'l': case 'L':
if (lflag)
error ("more than one `l' in numeric constant");
+ else if (warn_traditional && !in_system_header)
+ warning ("traditional C rejects the `%c' suffix", args->c);
lflag = 1;
break;
@@ -1773,6 +1777,8 @@ yylex ()
{
if (spec_unsigned)
error ("two `u's in integer constant");
+ else if (warn_traditional && !in_system_header)
+ warning ("traditional C rejects the `%c' suffix", c);
spec_unsigned = 1;
if (spec_long)
suffix_lu = 1;