comparison: ucx/comparator.c
ucx/comparator.c
- changeset 94
- 57ea041df22f
- parent 93
- a6a99e721660
- child 95
- ecfdc1c4a552
equal
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replaced
| 93:a6a99e721660 | 94:57ea041df22f |
|---|---|
| 1 #include "comparator.h" | |
| 2 #include "math.h" | |
| 3 | |
| 4 int ucx_strcmp(void *s1, void *s2, void *data) { | |
| 5 return strcmp((char*)s1, (char*)s2); | |
| 6 } | |
| 7 | |
| 8 int ucx_strncmp(void *s1, void *s2, void *n) { | |
| 9 return strncmp((char*)s1, (char*)s2, *((size_t*) n)); | |
| 10 } | |
| 11 | |
| 12 int ucx_intcmp(void *i1, void *i2, void *data) { | |
| 13 int a = *((int*) i1); | |
| 14 int b = *((int*) i2); | |
| 15 if (a == b) { | |
| 16 return 0; | |
| 17 } else { | |
| 18 return a < b ? -1 : 1; | |
| 19 } | |
| 20 } | |
| 21 | |
| 22 int ucx_floatcmp(void *f1, void *f2, void *epsilon) { | |
| 23 float a = *((float*) f1); | |
| 24 float b = *((float*) f2); | |
| 25 float e = !epsilon ? 1e-6f : *((float*)epsilon); | |
| 26 if (fabsf(a - b) < e) { | |
| 27 return 0; | |
| 28 } else { | |
| 29 return a < b ? -1 : 1; | |
| 30 } | |
| 31 } | |
| 32 | |
| 33 int ucx_doublecmp(void *d1, void *d2, void *epsilon) { | |
| 34 double a = *((float*) d1); | |
| 35 double b = *((float*) d2); | |
| 36 double e = !epsilon ? 1e-14 : *((double*)epsilon); | |
| 37 if (fabs(a - b) < e) { | |
| 38 return 0; | |
| 39 } else { | |
| 40 return a < b ? -1 : 1; | |
| 41 } | |
| 42 } | |
| 43 | |
| 44 int ucx_ptrcmp(void *ptr1, void *ptr2, void *data) { | |
| 45 if (ptr1 == ptr2) { | |
| 46 return 0; | |
| 47 } else { | |
| 48 return ptr1 < ptr2 ? -1 : 1; | |
| 49 } | |
| 50 } | |
| 51 | |
| 52 int ucx_memcmp(void *ptr1, void *ptr2, void *n) { | |
| 53 return memcmp(ptr1, ptr2, *((size_t*)n)); | |
| 54 } |
