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contents of empty shared array


From: SZAVAI Gyula
Subject: contents of empty shared array
Date: Thu, 30 Nov 2006 14:20:57 +0100
User-agent: Mozilla/5.0 (Windows NT 5.1; hu-HU) Thunderbird/1.5 Mnenhy/0.7.4.666


guile-1.8-20061126


(let ((a (make-shared-array #() (lambda x #f) 0 2)))
 (array-contents a))
==> #f

---------------

(let ((a (make-shared-array #() (lambda x #f) 0 2)))
 (array-for-each display a))     ; and other scm_ramapc-based functions

Backtrace:
In current input:
  3: {0}* (let* ((a (make-shared-array # # ...))) (display a) ...)
  5: 1  [array-for-each #<primitive-generic display> #2:0:2()]

<unnamed port>:5:3: In procedure array-for-each in expression (array-for-each di
splay a):
<unnamed port>:5:3: Value out of range: 0
ABORT: (out-of-range)





--- orig/libguile/unif.c        2006-11-30 10:25:50.101433600 +0100
+++ mod/libguile/unif.c 2006-11-30 13:03:16.244320000 +0100
@@ -900,6 +900,7 @@
       {
         SCM_I_ARRAY_V (ra) = make_typed_vector (scm_array_type (ra), 0);
         scm_array_handle_release (&old_handle);
+         SCM_SET_ARRAY_CONTIGUOUS_FLAG (ra);
         return ra;
       }
    }






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