shithub: mc

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Make sizeof stuff work nicer.

--- a/parse/gram.y

+++ b/parse/gram.y

@@ -17,6 +17,7 @@

 void yyerror(const char *s);

 int yylex(void);

 static Op binop(int toktype);

+static Node *mkpseudodecl(Type *t);

 Stab *curscope;

 %}

@@ -461,8 +462,8 @@

         | literal {$$ = mkexpr($1->line, Olit, $1, NULL);}

         | Toparen expr Tcparen

             {$$ = $2;}

-        | Tsizeof atomicexpr

-            {$$ = mkexpr($1->line, Osize, $2, NULL);}

+        | Tsizeof Toparen type Tcparen

+            {$$ = mkexpr($1->line, Osize, mkpseudodecl($3), NULL);}

         ;

 literal : funclit       {$$ = $1;}

@@ -557,6 +558,16 @@

         ;

 %%

+

+static Node *mkpseudodecl(Type *t)

+{

+    static int nextpseudoid;

+    char buf[128];

+

+    snprintf(buf, 128, ".pdecl%d", nextpseudoid++);

+    return mkdecl(-1, mkname(-1, buf), t);

+}

+

 void yyerror(const char *s)

 {