Benny Prijono | 4766ffe | 2005-11-01 17:56:59 +0000 | [diff] [blame^] | 1 | /* $Id$ |
| 2 | * |
Benny Prijono | dd859a6 | 2005-11-01 16:42:51 +0000 | [diff] [blame] | 3 | */ |
| 4 | #include <pj/array.h> |
| 5 | #include <pj/string.h> |
| 6 | #include <pj/assert.h> |
| 7 | #include <pj/errno.h> |
| 8 | |
| 9 | PJ_DEF(void) pj_array_insert( void *array, |
| 10 | unsigned elem_size, |
| 11 | unsigned count, |
| 12 | unsigned pos, |
| 13 | const void *value) |
| 14 | { |
| 15 | if (count && pos < count-1) { |
| 16 | pj_memmove( (char*)array + (pos+1)*elem_size, |
| 17 | (char*)array + pos*elem_size, |
| 18 | (count-pos)*elem_size); |
| 19 | } |
| 20 | pj_memmove((char*)array + pos*elem_size, value, elem_size); |
| 21 | } |
| 22 | |
| 23 | PJ_DEF(void) pj_array_erase( void *array, |
| 24 | unsigned elem_size, |
| 25 | unsigned count, |
| 26 | unsigned pos) |
| 27 | { |
| 28 | pj_assert(count != 0); |
| 29 | if (pos < count-1) { |
| 30 | pj_memmove( (char*)array + pos*elem_size, |
| 31 | (char*)array + (pos+1)*elem_size, |
| 32 | (count-pos-1)*elem_size); |
| 33 | } |
| 34 | } |
| 35 | |
| 36 | PJ_DEF(pj_status_t) pj_array_find( const void *array, |
| 37 | unsigned elem_size, |
| 38 | unsigned count, |
| 39 | pj_status_t (*matching)(const void *value), |
| 40 | void **result) |
| 41 | { |
| 42 | unsigned i; |
| 43 | const char *char_array = array; |
| 44 | for (i=0; i<count; ++i) { |
| 45 | if ( (*matching)(char_array) == PJ_SUCCESS) { |
| 46 | if (result) { |
| 47 | *result = (void*)char_array; |
| 48 | } |
| 49 | return PJ_SUCCESS; |
| 50 | } |
| 51 | char_array += elem_size; |
| 52 | } |
| 53 | return PJ_ENOTFOUND; |
| 54 | } |
| 55 | |