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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [cpp/] [charconst-4.c] - Blame information for rev 307

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Line No. Rev Author Line
1 298 jeremybenn
/* Copyright (C) 2001 Free Software Foundation, Inc.  */
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/* { dg-do run } */
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/* { dg-options "-Wno-multichar -fsigned-char" } */
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/* This tests how overly-long multichar charconsts are truncated, and
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   whether "short" multichar charconsts are incorrectly sign extended
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   (regardless of char signedness).  Preprocessor is used so that we
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   have only one place where the too long warning is generated, so
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   that the test works for all targets.
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   Neil Booth, 8 May 2002.  */
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#include <limits.h>
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extern void abort (void);
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#if INT_MAX == 32767
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# define LONG_CHARCONST '!\234a'
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# define SHORT_CHARCONST '\234a'
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# define POS_CHARCONST '\1'
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#elif INT_MAX == 2147483647
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# define LONG_CHARCONST '!\234abc'
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# define SHORT_CHARCONST '\234abc'
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# define POS_CHARCONST '\234a'
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#elif INT_MAX == 9223372036854775807
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# define LONG_CHARCONST '!\234abcdefg'
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# define SHORT_CHARCONST '\234abcdefg'
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# define POS_CHARCONST '\234a'
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#else
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/* Target int size not handled, do something that won't fail.  */
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# define LONG_CHARCONST '\234a'
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# define SHORT_CHARCONST '\234a'
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# define POS_CHARCONST '\1'
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#endif
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#if POS_CHARCONST < 0
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# error Charconst incorrectly sign-extended
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#endif
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#if LONG_CHARCONST != SHORT_CHARCONST /* { dg-warning "too long" "" } */
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# error Overly long charconst truncates wrongly for preprocessor
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#endif
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int main ()
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{
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  if (POS_CHARCONST < 0)
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    abort ();
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  if (LONG_CHARCONST != SHORT_CHARCONST)  /* { dg-warning "too long" "" } */
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    abort ();
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  return 0;
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}

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