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Diffstat (limited to 'U/d_safemcpy.U')
| -rw-r--r-- | U/d_safemcpy.U | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/U/d_safemcpy.U b/U/d_safemcpy.U deleted file mode 100644 index 2f32680709..0000000000 --- a/U/d_safemcpy.U +++ /dev/null @@ -1,82 +0,0 @@ -?RCS: $Id: d_safemcpy.U,v 3.0 1993/08/18 12:06:58 ram Exp $ -?RCS: -?RCS: Copyright (c) 1991-1993, Raphael Manfredi -?RCS: -?RCS: You may redistribute only under the terms of the Artistic Licence, -?RCS: as specified in the README file that comes with the distribution. -?RCS: You may reuse parts of this distribution only within the terms of -?RCS: that same Artistic Licence; a copy of which may be found at the root -?RCS: of the source tree for dist 3.0. -?RCS: -?RCS: $Log: d_safemcpy.U,v $ -?RCS: -?RCS: Copy "abcde..." string to char abc[] so that -?RCS: gcc doesn't try to store the string in read-only memory. -?RCS: -?RCS: Revision 3.0 1993/08/18 12:06:58 ram -?RCS: Baseline for dist 3.0 netwide release. -?RCS: -?MAKE:d_safemcpy: cat d_memcpy +cc +ccflags +libs rm Oldconfig Setvar -?MAKE: -pick add $@ %< -?S:d_safemcpy: -?S: This variable conditionally defines the HAS_SAFE_MEMCPY symbol if -?S: the memcpy() routine can do overlapping copies. -?S:. -?C:HAS_SAFE_MEMCPY (SAFE_MEMCPY): -?C: This symbol, if defined, indicates that the memcpy routine is available -?C: to copy potentially overlapping memory blocks. Otherwise you should -?C: probably use memmove() or memcpy(). If neither is defined, roll your -?C: own version. -?C:. -?H:#$d_safemcpy HAS_SAFE_MEMCPY /**/ -?H:. -?LINT: set d_safemcpy -: can memcpy handle overlapping blocks? -?X: assume the worst -val="$undef" -case "$d_memcpy" in -"$define") - echo " " - echo "Checking to see if your memcpy() can do overlapping copies..." >&4 - $cat >foo.c <<'EOCP' -main() -{ -char buf[128], abc[128]; -char *b; -int len; -int off; -int align; - -memcpy(abc, "abcdefghijklmnopqrstuvwxyz0123456789", 36); - -for (align = 7; align >= 0; align--) { - for (len = 36; len; len--) { - b = buf+align; - memcpy(abc, b, len); - for (off = 1; off <= len; off++) { - memcpy(b, b+off, len); - memcpy(b+off, b, len); - if (memcmp(b, abc, len)) - exit(1); - } - } -} -exit(0); -} -EOCP - if $cc foo.c -o safemcpy $ccflags $libs >/dev/null 2>&1 ; then - if ./safemcpy 2>/dev/null; then - echo "Yes, it can." - val="$define" - else - echo "It can't, sorry." - fi - else - echo "(I can't compile the test program, so we'll assume not...)" - fi - ;; -esac -$rm -f foo.* safemcpy core -set d_safemcpy -eval $setvar - |