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changeset 473:ec2b47ce2530

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Joshua Phillips fixed size of structs with empty array member.
author Rob Landley <rob@landley.net>
date Wed, 05 Sep 2007 17:47:17 -0500
parents 5ecdf063c480
children 254e8668fb9d
files tcc.c tests/tcctest.c
diffstat 2 files changed, 9 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/tcc.c	Wed Sep 05 17:36:42 2007 -0500
+++ b/tcc.c	Wed Sep 05 17:47:17 2007 -0500
@@ -5849,7 +5849,8 @@
                             if (a == TOK_STRUCT) {
                                 c = (c + align - 1) & -align;
                                 offset = c;
-                                c += size;
+                                if (size > 0)
+                                    c += size;
                             } else {
                                 offset = 0;
                                 if (size > c)
--- a/tests/tcctest.c	Wed Sep 05 17:36:42 2007 -0500
+++ b/tests/tcctest.c	Wed Sep 05 17:47:17 2007 -0500
@@ -794,6 +794,10 @@
 {
     struct1 *s;
     union union2 u;
+    struct foo {
+        int a;
+        void *b[];
+    };
 
     printf("struct:\n");
     printf("sizes: %d %d %d %d\n",
@@ -833,6 +837,9 @@
     /* empty structures (GCC extension) */
     printf("sizeof(struct empty) = %d\n", sizeof(struct empty));
     printf("alignof(struct empty) = %d\n", __alignof__(struct empty));
+
+    // Struct with zero size member.
+    printf("sizeof(struct foo)=%d\n", sizeof(struct foo));
 }
 
 /* XXX: depend on endianness */
@@ -2183,4 +2190,3 @@
 #  include <windows.h>
 #  include <gl\glaux.h>
 #endif
-