diff options
Diffstat (limited to 'bcc/declare.c')
| -rw-r--r-- | bcc/declare.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/bcc/declare.c b/bcc/declare.c index 0820c4b..a92c545 100644 --- a/bcc/declare.c +++ b/bcc/declare.c @@ -2,6 +2,9 @@ /* Copyright (C) 1992 Bruce Evans */ +#ifndef VERY_SMALL_MEMORY +#include <stdio.h> +#endif #include "bcc.h" #include "align.h" #include "byteord.h" @@ -26,6 +29,10 @@ PRIVATE char gvar2name[2 + NAMESIZE]; /* space for structure keys and .. */ PRIVATE struct typestruct *gvartype; /* type of last identifier declared */ PRIVATE bool_t initlistflag; /* remembers whether initializer is a list */ +#ifndef VERY_SMALL_MEMORY +PRIVATE int anons = 0; /* number of anonymous structures/unions seen */ +#endif + FORWARD struct typestruct *chainprefix P((struct typestruct *pretype, struct typestruct *sufftype)); FORWARD void declaf P((void)); @@ -219,7 +226,12 @@ PRIVATE void declarator() { rdeclarator(); if (gvartype->constructor == STRUCTU && gvartype->typesize == 0 && +/* We don't do the anonymous union/structure trickery on low mem machines */ +#ifdef VERY_SMALL_MEMORY gvarsc != TYPEDEFDECL && gvarsc != EXTERNDECL) +#else + gvarsc != TYPEDEFDECL && gvarsc != EXTERNDECL && gvarsc != NULLDECL) +#endif error("undefined structure"); } @@ -328,10 +340,21 @@ struct typelist **ptypelist; if (gvarsc != NULLDECL) error("illegal type name"); basetype = gvartype; + +#ifndef VERY_SMALL_MEMORY + if (sym == SEMICOLON || sym == EOFSYM) { + /* Generate a fake structure if none specified... */ + anonstruct (); + /* ....and pretend it was regularly present in source */ + goto anonstr; + } +#endif + while (sym != SEMICOLON && sym != EOFSYM) { gvartype = basetype; declarator(); +anonstr: fieldwidth = -1; if (sym == COLON) { @@ -1189,3 +1212,24 @@ PUBLIC struct typestruct *typename() gvartype = ogvartype; return type; } + +#ifndef VERY_SMALL_MEMORY +PUBLIC int lastanon() +{ + return anons; +} + +PUBLIC void anonname(name, i) +char *name; +int i; +{ + if (i == 0xfff) + fatalerror("Too many anonymous structs/unions"); + sprintf (name, "__an%03x", i); +} + +PUBLIC void anonstruct() +{ + anonname (gvarname, anons++); +} +#endif |