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  • Committer: Bazaar Package Importer
  • Author(s): Christoph Egger
  • Date: 2011-02-19 12:19:56 UTC
  • mfrom: (1.3.2 upstream) (0.1.5 experimental)
  • mto: This revision was merged to the branch mainline in revision 14.
  • Revision ID: james.westby@ubuntu.com-20110219121956-67rb69xlt5nud3v2
Tags: 1:7.1-5
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tests/huge_test.c
 
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#include <stdlib.h>
 
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#include <limits.h>
 
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#include <stdio.h>
 
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#include <gc.h>
 
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/*
 
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 * Check that very large allocation requests fail.  "Success" would usually
 
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 * indicate that the the size was somehow converted to a negative
 
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 * number.  Clients shouldn't do this, but we should fail in the
 
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 * expected manner.
 
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 */
 
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main()
 
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{
 
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    GC_INIT();
 
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    GC_set_max_heap_size(100*1024*1024);
 
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        /* Otherwise heap expansion aborts when deallocating large block. */
 
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        /* That's OK.  We test this corner case mostly to make sure that  */
 
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        /* it fails predictably.                                          */
 
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    GC_expand_hp(1024*1024*5);
 
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    if (sizeof(long) == sizeof(void *)) {
 
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        void *r = GC_MALLOC(LONG_MAX-1024);
 
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        if (0 != r) {
 
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            fprintf(stderr,
 
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                    "Size LONG_MAX-1024 allocation unexpectedly succeeded\n");
 
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            exit(1);
 
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        }
 
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        r = GC_MALLOC(LONG_MAX);
 
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        if (0 != r) {
 
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            fprintf(stderr,
 
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                    "Size LONG_MAX allocation unexpectedly succeeded\n");
 
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            exit(1);
 
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        }
 
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        r = GC_MALLOC((size_t)LONG_MAX + 1024);
 
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        if (0 != r) {
 
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            fprintf(stderr,
 
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                    "Size LONG_MAX+1024 allocation unexpectedly succeeded\n");
 
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            exit(1);
 
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        }
 
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    }
 
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    return 0;
 
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}
 
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