diff options
Diffstat (limited to 'gcc/cpphash.h')
| -rw-r--r-- | gcc/cpphash.h | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/gcc/cpphash.h b/gcc/cpphash.h index a059e2b0aac..6d3f1b9fb09 100644 --- a/gcc/cpphash.h +++ b/gcc/cpphash.h @@ -126,16 +126,36 @@ struct tokenrun cpp_token *base, *limit; }; +/* Accessor macros for struct cpp_context. */ +#define FIRST(c) (c->u.iso.first) +#define LAST(c) (c->u.iso.last) +#define CUR(c) (c->u.trad.cur) +#define RLIMIT(c) (c->u.trad.rlimit) + typedef struct cpp_context cpp_context; struct cpp_context { /* Doubly-linked list. */ cpp_context *next, *prev; - /* Contexts other than the base context are contiguous tokens. - e.g. macro expansions, expanded argument tokens. */ - union utoken first; - union utoken last; + union + { + /* For ISO macro expansion. Contexts other than the base context + are contiguous tokens. e.g. macro expansions, expanded + argument tokens. */ + struct + { + union utoken first; + union utoken last; + } iso; + + /* For traditional macro expansion. */ + struct + { + const uchar *cur; + const uchar *rlimit; + } trad; + } u; /* If non-NULL, a buffer used for storage related to this context. When the context is popped, the buffer is released. */ |