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| author | Robert Lipe <robertlipe@usa.net> | 2000-04-18 19:42:30 +0000 |
|---|---|---|
| committer | Robert Lipe <robertl@gcc.gnu.org> | 2000-04-18 19:42:30 +0000 |
| commit | c149cc37c87cd454fec56f5032cc1e4b10feca16 (patch) | |
| tree | 796b4e2bf06329dfa2420c489ee8acf507d84c7f /gcc/system.h | |
| parent | aa4661f82360b21f5048823019740e80ed4efbe3 (diff) | |
| download | gcc-c149cc37c87cd454fec56f5032cc1e4b10feca16.zip gcc-c149cc37c87cd454fec56f5032cc1e4b10feca16.tar.gz gcc-c149cc37c87cd454fec56f5032cc1e4b10feca16.tar.bz2 | |
configure.in (ENUM_BITFIELDS_ARE_UNSIGNED): Added.
* configure.in (ENUM_BITFIELDS_ARE_UNSIGNED): Added. Check that
bitfields of the host compiler are not signed quantities.
* config.in: Regenerate.
* configure: Regenerate.
* system.h (USE_ENUM_BITFIELDS): Added.
(ENUM_BITFIELDS): Added.
* rtl.h (rtx_def): Members `code', `mode', now ENUM_BITFIELD.
(SHORT_ENUM_BUG): Deleted.
* tree.h (tree_common): Members `code', `mode', `built_in_class',
now ENUM_BITFIELD.
* config/i386/xm-sco.h (ONLY_INT_FIELDS): Deleted.
(CODE_FIELD_BUG): Likewise.
* config/m68k/x-apollo68 (CC): Deleted SHORT_ENUM_BUG.
(OLD_CC): Likewise.
* config/m68k/x-ccur (X_CFLAGS): Likewise.
From-SVN: r33233
Diffstat (limited to 'gcc/system.h')
| -rw-r--r-- | gcc/system.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/system.h b/gcc/system.h index cdbcf9d..6a74946 100644 --- a/gcc/system.h +++ b/gcc/system.h @@ -547,4 +547,16 @@ extern void abort PARAMS ((void)); /* Get libiberty declarations. */ #include "libiberty.h" +/* Enumerated bitfields are safe to use unless we've been explictly told + * otherwise or if they are signed. */ + +#define USE_ENUM_BITFIELDS __GNUC__ || (!ONLY_INT_FIELDS && ENUM_BTIFIELDS_ARE_UNSIGNED) + +#if USE_ENUM_BITFIELDS +#define ENUM_BITFIELD(TYPE) enum TYPE +#else +#define ENUM_BITFIELD(TYPE) unsigned int +#endif + + #endif /* __GCC_SYSTEM_H__ */ |