ucx/utils.c@57ea041df22f (annotated)
ucx/utils.c
Wed, 27 Feb 2013 11:48:29 +0100
- author
- Mike Becker <universe@uap-core.de>
- date
- Wed, 27 Feb 2013 11:48:29 +0100
- changeset 94
- 57ea041df22f
- parent 92
- ucx/comparator.c@7625a8efcc97
- child 103
- 08018864fb91
- permissions
- -rw-r--r--
renamed comparator to utils module and added copy functions
| universe@94 | 1 | #include "utils.h" |
| universe@92 | 2 | #include "math.h" |
| universe@89 | 3 | |
| universe@94 | 4 | /* COPY FUCNTIONS */ |
| universe@94 | 5 | void* ucx_strcpy(void* s, void* data) { |
| universe@94 | 6 | char *str = (char*) s; |
| universe@94 | 7 | size_t n = 1+strlen(str); |
| universe@94 | 8 | char *cpy = (char*) malloc(n); |
| universe@94 | 9 | memcpy(cpy, str, n); |
| universe@94 | 10 | return cpy; |
| universe@94 | 11 | } |
| universe@94 | 12 | |
| universe@94 | 13 | void* ucx_memcpy(void* m, void* n) { |
| universe@94 | 14 | size_t k = *((size_t*)n); |
| universe@94 | 15 | void *cpy = malloc(k); |
| universe@94 | 16 | memcpy(cpy, m, k); |
| universe@94 | 17 | return cpy; |
| universe@94 | 18 | } |
| universe@94 | 19 | |
| universe@94 | 20 | /* COMPARE FUNCTION */ |
| universe@94 | 21 | |
| universe@89 | 22 | int ucx_strcmp(void *s1, void *s2, void *data) { |
| universe@89 | 23 | return strcmp((char*)s1, (char*)s2); |
| universe@89 | 24 | } |
| universe@89 | 25 | |
| universe@89 | 26 | int ucx_strncmp(void *s1, void *s2, void *n) { |
| universe@89 | 27 | return strncmp((char*)s1, (char*)s2, *((size_t*) n)); |
| universe@89 | 28 | } |
| universe@89 | 29 | |
| universe@89 | 30 | int ucx_intcmp(void *i1, void *i2, void *data) { |
| universe@89 | 31 | int a = *((int*) i1); |
| universe@89 | 32 | int b = *((int*) i2); |
| universe@89 | 33 | if (a == b) { |
| universe@89 | 34 | return 0; |
| universe@89 | 35 | } else { |
| universe@89 | 36 | return a < b ? -1 : 1; |
| universe@89 | 37 | } |
| universe@89 | 38 | } |
| universe@89 | 39 | |
| universe@92 | 40 | int ucx_floatcmp(void *f1, void *f2, void *epsilon) { |
| universe@92 | 41 | float a = *((float*) f1); |
| universe@92 | 42 | float b = *((float*) f2); |
| universe@92 | 43 | float e = !epsilon ? 1e-6f : *((float*)epsilon); |
| universe@92 | 44 | if (fabsf(a - b) < e) { |
| universe@92 | 45 | return 0; |
| universe@92 | 46 | } else { |
| universe@92 | 47 | return a < b ? -1 : 1; |
| universe@92 | 48 | } |
| universe@92 | 49 | } |
| universe@92 | 50 | |
| universe@92 | 51 | int ucx_doublecmp(void *d1, void *d2, void *epsilon) { |
| universe@92 | 52 | double a = *((float*) d1); |
| universe@92 | 53 | double b = *((float*) d2); |
| universe@92 | 54 | double e = !epsilon ? 1e-14 : *((double*)epsilon); |
| universe@92 | 55 | if (fabs(a - b) < e) { |
| universe@92 | 56 | return 0; |
| universe@92 | 57 | } else { |
| universe@92 | 58 | return a < b ? -1 : 1; |
| universe@92 | 59 | } |
| universe@92 | 60 | } |
| universe@92 | 61 | |
| universe@89 | 62 | int ucx_ptrcmp(void *ptr1, void *ptr2, void *data) { |
| universe@89 | 63 | if (ptr1 == ptr2) { |
| universe@89 | 64 | return 0; |
| universe@89 | 65 | } else { |
| universe@89 | 66 | return ptr1 < ptr2 ? -1 : 1; |
| universe@89 | 67 | } |
| universe@89 | 68 | } |
| universe@91 | 69 | |
| universe@91 | 70 | int ucx_memcmp(void *ptr1, void *ptr2, void *n) { |
| universe@91 | 71 | return memcmp(ptr1, ptr2, *((size_t*)n)); |
| universe@91 | 72 | } |
