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65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/*
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* have_memmv - Determine if we memmove()
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*
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* usage:
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* have_memmv
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*
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* Not all systems with memcpy() have memmove() functions, so this may not
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* compile on your system.
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*
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* This prog outputs several defines:
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*
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* HAVE_MEMMOVE
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* defined ==> use memmove()
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* undefined ==> use internal slow memmove() instead
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*/
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/*
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* Copyright (c) 1997 by Landon Curt Noll. All Rights Reserved.
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright, this permission notice and text
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* this comment, and the disclaimer below appear in all of the following:
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*
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* supporting documentation
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* source copies
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* source works derived from this source
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* binaries derived from this source or from derived source
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*
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* LANDON CURT NOLL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
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* EVENT SHALL LANDON CURT NOLL BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
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* USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*
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* chongo was here /\../\
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*/
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#include <stdio.h>
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#define MOVELEN 3
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char src[] = "chongo was here";
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char dest[MOVELEN+1];
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int
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main(void)
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{
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#if defined(HAVE_NO_MEMMOVE)
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printf("#undef HAVE_MEMMOVE /* no */\n");
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#else /* HAVE_NO_MEMMOVE */
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(void) memmove(dest, src, MOVELEN);
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printf("#define HAVE_MEMMOVE /* yes */\n");
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#endif /* HAVE_NO_MEMMOVE */
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/* exit(0); */
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return 0;
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}
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