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author | schwarze <> | 2011-07-25 00:38:53 +0000 |
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committer | schwarze <> | 2011-07-25 00:38:53 +0000 |
commit | 339c056f856313e215baab8ddc4bc0ce064b4571 (patch) | |
tree | 7c0511efd76ae46bc18c0955627ddf69509014c6 /src/lib/libc/string/memcpy.3 | |
parent | 3ad0ccfe078fe407c711a9d1fb21b9b79aa67f2c (diff) | |
download | openbsd-339c056f856313e215baab8ddc4bc0ce064b4571.tar.gz openbsd-339c056f856313e215baab8ddc4bc0ce064b4571.tar.bz2 openbsd-339c056f856313e215baab8ddc4bc0ce064b4571.zip |
update HISTORY and SEE ALSO for all of string(3), together with various
smaller improvements; jmc@ and nicm@ both ask me to get this in because
further tweaking will be easier in-tree
Diffstat (limited to 'src/lib/libc/string/memcpy.3')
-rw-r--r-- | src/lib/libc/string/memcpy.3 | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/src/lib/libc/string/memcpy.3 b/src/lib/libc/string/memcpy.3 index 1deb03631b..e95d670ad9 100644 --- a/src/lib/libc/string/memcpy.3 +++ b/src/lib/libc/string/memcpy.3 | |||
@@ -1,3 +1,5 @@ | |||
1 | .\" $OpenBSD: memcpy.3,v 1.8 2011/07/25 00:38:52 schwarze Exp $ | ||
2 | .\" | ||
1 | .\" Copyright (c) 1990, 1991 The Regents of the University of California. | 3 | .\" Copyright (c) 1990, 1991 The Regents of the University of California. |
2 | .\" All rights reserved. | 4 | .\" All rights reserved. |
3 | .\" | 5 | .\" |
@@ -29,9 +31,7 @@ | |||
29 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | 31 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
30 | .\" SUCH DAMAGE. | 32 | .\" SUCH DAMAGE. |
31 | .\" | 33 | .\" |
32 | .\" $OpenBSD: memcpy.3,v 1.7 2007/05/31 19:19:32 jmc Exp $ | 34 | .Dd $Mdocdate: July 25 2011 $ |
33 | .\" | ||
34 | .Dd $Mdocdate: May 31 2007 $ | ||
35 | .Dt MEMCPY 3 | 35 | .Dt MEMCPY 3 |
36 | .Os | 36 | .Os |
37 | .Sh NAME | 37 | .Sh NAME |
@@ -60,18 +60,26 @@ function returns the original value of | |||
60 | .Xr memccpy 3 , | 60 | .Xr memccpy 3 , |
61 | .Xr memmove 3 , | 61 | .Xr memmove 3 , |
62 | .Xr strcpy 3 , | 62 | .Xr strcpy 3 , |
63 | .Xr strlcpy 3 | 63 | .Xr strlcpy 3 , |
64 | .Xr wmemcpy 3 | ||
64 | .Sh STANDARDS | 65 | .Sh STANDARDS |
65 | The | 66 | The |
66 | .Fn memcpy | 67 | .Fn memcpy |
67 | function conforms to | 68 | function conforms to |
68 | .St -ansiC . | 69 | .St -ansiC . |
69 | .Sh BUGS | 70 | .Sh HISTORY |
71 | The | ||
72 | .Fn memcpy | ||
73 | function first appeared in | ||
74 | .At V | ||
75 | and was reimplemented for | ||
76 | .Bx 4.3 Tahoe . | ||
77 | .Sh CAVEATS | ||
70 | In this implementation | 78 | In this implementation |
71 | .Fn memcpy | 79 | .Fn memcpy |
72 | is implemented using | 80 | is implemented using |
73 | .Xr bcopy 3 , | 81 | .Xr bcopy 3 , |
74 | and therefore the buffers may overlap. | 82 | and therefore the buffers may overlap. |
75 | On other systems, copying overlapping buffers may produce surprises. | 83 | On other systems, copying overlapping buffers may produce surprises. |
76 | A simpler solution is to not use | 84 | A portable, safe solution is to use |
77 | .Fn memcpy . | 85 | .Xr memmove 3 . |