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Add strxfrm(3).

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This commit is contained in:
Jonas 'Sortie' Termansen 2012-11-08 19:04:55 +01:00
parent 0c54bcd6e9
commit e08c13b344
3 changed files with 34 additions and 1 deletions
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1
libc/Makefile
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@ -120,6 +120,7 @@ strspn.o \
strstr.o \
strtok.o \
strtok_r.o \
strxfrm.o \
ungetc.o \
vfscanf.o \
vsscanf.o \

2
libc/include/string.h
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@ -61,6 +61,7 @@ size_t strspn(const char*, const char*);
char* strstr(const char*, const char*);
char* strtok(char* restrict, const char* restrict);
char* strtok_r(char* restrict, const char* restrict, char** restrict);
size_t strxfrm(char* restrict, const char* restrict, size_t);
/* TODO: These are not implemented in sortix libc yet. */
#if defined(__SORTIX_SHOW_UNIMPLEMENTED)
@ -68,7 +69,6 @@ int strcoll_l(const char*, const char*, locale_t);
char* strerror_l(int, locale_t);
int strerror_r(int, char*, size_t);
char* strsignal(int);
size_t strxfrm(char* restrict, const char* restrict, size_t);
size_t strxfrm_l(char* restrict, const char* restrict, size_t, locale_t);
#endif

32
libc/strxfrm.cpp Normal file
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@ -0,0 +1,32 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012.
This file is part of the Sortix C Library.
The Sortix C Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
The Sortix C Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
strxfrm.cpp
Transform a string such that the result of strcmp is the same as strcoll.
*******************************************************************************/
#include <string.h>
extern "C" size_t strxfrm(char* dest, const char* src, size_t n)
{
size_t srclen = strlen(src);
strncpy(dest, src, n);
return srclen;
}