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16 Commits

Author SHA1 Message Date
Elliott Hughes
bf018299bd Fix strerror(3) for errno 0. 
Everyone else's C library says "Success". We say "Unknown error: 0", which
isn't really true.

Change-Id: I9f9054779123eda996634e5f7a277789b6805809
 2011-05-13 10:54:34 -07:00
Johannes Carlsson
0f67de14e6 Use more optimized version of memmove 
On ARM there is currently no assembler optimized memmove in libc.
There is however a more optimized bcopy which copies long instead
of bytes where possible. This almost doubles the performance in
best case.

Change-Id: I1f1cd27529443358047c385730deaf938ce4e642
 2011-02-03 15:17:13 +01:00
David 'Digit' Turner
5b81b91817 libc: optimize memmove() with memcpy() if possible. 
Change-Id: I90e578fdc82e427caee8fa4157ce3f8c6c99926d
 2010-10-07 11:03:32 +02:00
Marco Nelissen
af00228b70 Revert "libc: memmove(): non-overlapping block optim." 
This reverts commit 80fba9a2fe,
which caused the system to not boot anymore, aborting with:
"java.lang.RuntimeException: Missing static main on com.android.server.SystemServer".

Change-Id: I745e0a23c728cccf5f95a3c7642d544478a4e57e
 2010-09-28 10:24:20 -07:00
David 'Digit' Turner
80fba9a2fe libc: memmove(): non-overlapping block optim. 
Change-Id: I5652f4f97ca59d95176443fc27c737ef76258183
 2010-09-27 17:34:41 +02:00
rich cannings
e44cb1a35c Fix return value. 
Return a valid pointer (not NULL) when the character "c" is at the end of "src".

Change-Id: Iab0b677943f2c8a9fbb255c44689f5d6dc3535d7
Example:
  memccpy(dest, "xzy", 'y', 3) should return dest+3 rather than null.
 2010-08-31 15:19:38 -07:00
David Turner
d791da7943 Merge "string: tidy up strndup()" 2010-05-10 14:52:02 -07:00
David Turner
8ab5b02b5f Merge changes Ibdc6e3c8,I9bcb91a2 
* changes:
  Correct generic memset implementation
  Generic memcpy should define MEMCOPY before including bcopy.c
 2010-03-29 15:05:47 -07:00
Chris Dearman
bdc6e3c83f Correct generic memset implementation 
Signed-off-by: Chris Dearman <chris@mips.com>
 2010-02-05 15:13:55 -08:00
Chris Dearman
9bcb91a212 Generic memcpy should define MEMCOPY before including bcopy.c 
Signed-off-by: Chris Dearman <chris@mips.com>
 2010-02-05 15:13:55 -08:00
André Goddard Rosa
aba3ee7d32 string: tidy up strndup() 
It decreases code size:
   text    data     bss     dec     hex filename
    161       0       0     161      a1 strndup-BEFORE.o
    153       0       0     153      99 strndup-AFTER.o

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
 2010-01-30 22:29:59 -02:00
André Goddard Rosa
30a419afc3 improve readability of string: fix indentation and remove trailing spaces 
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
 2010-01-30 22:28:49 -02:00
The Android Open Source Project
1dc9e472e1 auto import from //depot/cupcake/@135843 2009-03-03 19:28:35 -08:00
The Android Open Source Project
1767f908af auto import from //depot/cupcake/@135843 2009-03-03 18:28:13 -08:00
The Android Open Source Project
9f65adf2ba auto import from //branches/cupcake/...@130745 2009-02-10 15:43:56 -08:00
The Android Open Source Project
a27d2baa0c Initial Contribution 2008-10-21 07:00:00 -07:00