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Diffstat (limited to 'pjlib/src/pj/array.c')
-rw-r--r-- | pjlib/src/pj/array.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/pjlib/src/pj/array.c b/pjlib/src/pj/array.c new file mode 100644 index 0000000..5b39d19 --- /dev/null +++ b/pjlib/src/pj/array.c @@ -0,0 +1,71 @@ +/* $Id: array.c 3553 2011-05-05 06:14:19Z nanang $ */ +/* + * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) + * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <pj/array.h> +#include <pj/string.h> +#include <pj/assert.h> +#include <pj/errno.h> + +PJ_DEF(void) pj_array_insert( void *array, + unsigned elem_size, + unsigned count, + unsigned pos, + const void *value) +{ + if (count && pos < count) { + pj_memmove( (char*)array + (pos+1)*elem_size, + (char*)array + pos*elem_size, + (count-pos)*elem_size); + } + pj_memmove((char*)array + pos*elem_size, value, elem_size); +} + +PJ_DEF(void) pj_array_erase( void *array, + unsigned elem_size, + unsigned count, + unsigned pos) +{ + pj_assert(count != 0); + if (pos < count-1) { + pj_memmove( (char*)array + pos*elem_size, + (char*)array + (pos+1)*elem_size, + (count-pos-1)*elem_size); + } +} + +PJ_DEF(pj_status_t) pj_array_find( const void *array, + unsigned elem_size, + unsigned count, + pj_status_t (*matching)(const void *value), + void **result) +{ + unsigned i; + const char *char_array = (const char*)array; + for (i=0; i<count; ++i) { + if ( (*matching)(char_array) == PJ_SUCCESS) { + if (result) { + *result = (void*)char_array; + } + return PJ_SUCCESS; + } + char_array += elem_size; + } + return PJ_ENOTFOUND; +} + |