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| author | Zack Weinberg <zack@gcc.gnu.org> | 2002-08-02 04:18:16 +0000 |
|---|---|---|
| committer | Zack Weinberg <zack@gcc.gnu.org> | 2002-08-02 04:18:16 +0000 |
| commit | 56da7207c1b5d008ead2df641f3008c25568f3ca (patch) | |
| tree | c63ec9dce2bc93a6a52925534a75b6d065be7679 /gcc/cppexp.c | |
| parent | 88c3865996f3be69203664a3889ec54bbeeb8c04 (diff) | |
| download | gcc-56da7207c1b5d008ead2df641f3008c25568f3ca.zip gcc-56da7207c1b5d008ead2df641f3008c25568f3ca.tar.gz gcc-56da7207c1b5d008ead2df641f3008c25568f3ca.tar.bz2 | |
c-common.c (c_common_init): -Wtraditional also implies -Wlong-long.
* c-common.c (c_common_init): -Wtraditional also implies -Wlong-long.
* cppinit.c (cpp_post_options): Likewise.
* cppexp.c (cpp_classify_number): Suppress -Wtraditional
warning about 'LL' suffix (but not 'ULL' etc) when
-Wno-long-long is in effect.
* cppmacro.c (_cpp_builtin_macro_text) [BT_TIME, BT_DATE]:
Check for failing time()/localtime(), issue a warning, and
make __TIME__ and __DATE__ expand to fallback strings.
* doc/cpp.texi, doc/extend.texi: Document behavior of __DATE__
and __TIME__ when the date and time cannot be determined.
From-SVN: r55969
Diffstat (limited to 'gcc/cppexp.c')
| -rw-r--r-- | gcc/cppexp.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/gcc/cppexp.c b/gcc/cppexp.c index 5690436..a3ef965 100644 --- a/gcc/cppexp.c +++ b/gcc/cppexp.c @@ -270,13 +270,18 @@ cpp_classify_number (pfile, token) return CPP_N_INVALID; } - /* Traditional C only accepted the 'L' suffix. */ - if (result != CPP_N_SMALL && result != CPP_N_MEDIUM - && CPP_WTRADITIONAL (pfile) - && ! cpp_sys_macro_p (pfile)) - cpp_error (pfile, DL_WARNING, - "traditional C rejects the \"%.*s\" suffix", - (int) (limit - str), str); + /* Traditional C only accepted the 'L' suffix. + Suppress warning about 'LL' with -Wno-long-long. */ + if (CPP_WTRADITIONAL (pfile) && ! cpp_sys_macro_p (pfile)) + { + int u_or_i = (result & (CPP_N_UNSIGNED|CPP_N_IMAGINARY)); + int large = (result & CPP_N_WIDTH) == CPP_N_LARGE; + + if (u_or_i || (large && CPP_OPTION (pfile, warn_long_long))) + cpp_error (pfile, DL_WARNING, + "traditional C rejects the \"%.*s\" suffix", + (int) (limit - str), str); + } if ((result & CPP_N_WIDTH) == CPP_N_LARGE && ! CPP_OPTION (pfile, c99) |