diff options
Diffstat (limited to 'gcc/cpplib.h')
| -rw-r--r-- | gcc/cpplib.h | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/gcc/cpplib.h b/gcc/cpplib.h index 85d0744..a9e8f15 100644 --- a/gcc/cpplib.h +++ b/gcc/cpplib.h @@ -612,22 +612,23 @@ enum node_type { #define IShspace 0x08 /* ' ' \t \f \v */ #define ISspace 0x10 /* ' ' \t \f \v \n */ -#define is_idchar(x) (IStable[x] & ISidnum) -#define is_numchar(x) (IStable[x] & ISidnum) -#define is_idstart(x) (IStable[x] & ISidstart) -#define is_numstart(x) (IStable[x] & ISnumstart) -#define is_hspace(x) (IStable[x] & IShspace) -#define is_space(x) (IStable[x] & ISspace) - -/* This table is not really `const', but it is only modified at - initialization time, in a separate translation unit from the rest - of the library. We let the rest of the library think it is `const' - to get better code and some additional compile-time checks. */ -#ifndef FAKE_CONST -#define FAKE_CONST const +#define _dollar_ok(x) ((x) == '$' && CPP_OPTIONS (pfile)->dollars_in_ident) + +#define is_idchar(x) ((_cpp_IStable[x] & ISidnum) || _dollar_ok(x)) +#define is_idstart(x) ((_cpp_IStable[x] & ISidstart) || _dollar_ok(x)) +#define is_numchar(x) (_cpp_IStable[x] & ISidnum) +#define is_numstart(x) (_cpp_IStable[x] & ISnumstart) +#define is_hspace(x) (_cpp_IStable[x] & IShspace) +#define is_space(x) (_cpp_IStable[x] & ISspace) + +/* This table is constant if it can be initialized at compile time, + which is the case if cpp was compiled with GCC >=2.7, or another + compiler that supports C99. */ +#if (GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L) +extern const unsigned char _cpp_IStable[256]; +#else +extern unsigned char _cpp_IStable[256]; #endif -extern FAKE_CONST unsigned char IStable[256]; -#undef FAKE_CONST /* Stack of conditionals currently in progress (including both successful and failing conditionals). */ |