comparison: ucx/utils.c
ucx/utils.c
- changeset 94
- 57ea041df22f
- parent 92
- 7625a8efcc97
- child 103
- 08018864fb91
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| 93:a6a99e721660 | 94:57ea041df22f |
|---|---|
| 1 #include "utils.h" | |
| 2 #include "math.h" | |
| 3 | |
| 4 /* COPY FUCNTIONS */ | |
| 5 void* ucx_strcpy(void* s, void* data) { | |
| 6 char *str = (char*) s; | |
| 7 size_t n = 1+strlen(str); | |
| 8 char *cpy = (char*) malloc(n); | |
| 9 memcpy(cpy, str, n); | |
| 10 return cpy; | |
| 11 } | |
| 12 | |
| 13 void* ucx_memcpy(void* m, void* n) { | |
| 14 size_t k = *((size_t*)n); | |
| 15 void *cpy = malloc(k); | |
| 16 memcpy(cpy, m, k); | |
| 17 return cpy; | |
| 18 } | |
| 19 | |
| 20 /* COMPARE FUNCTION */ | |
| 21 | |
| 22 int ucx_strcmp(void *s1, void *s2, void *data) { | |
| 23 return strcmp((char*)s1, (char*)s2); | |
| 24 } | |
| 25 | |
| 26 int ucx_strncmp(void *s1, void *s2, void *n) { | |
| 27 return strncmp((char*)s1, (char*)s2, *((size_t*) n)); | |
| 28 } | |
| 29 | |
| 30 int ucx_intcmp(void *i1, void *i2, void *data) { | |
| 31 int a = *((int*) i1); | |
| 32 int b = *((int*) i2); | |
| 33 if (a == b) { | |
| 34 return 0; | |
| 35 } else { | |
| 36 return a < b ? -1 : 1; | |
| 37 } | |
| 38 } | |
| 39 | |
| 40 int ucx_floatcmp(void *f1, void *f2, void *epsilon) { | |
| 41 float a = *((float*) f1); | |
| 42 float b = *((float*) f2); | |
| 43 float e = !epsilon ? 1e-6f : *((float*)epsilon); | |
| 44 if (fabsf(a - b) < e) { | |
| 45 return 0; | |
| 46 } else { | |
| 47 return a < b ? -1 : 1; | |
| 48 } | |
| 49 } | |
| 50 | |
| 51 int ucx_doublecmp(void *d1, void *d2, void *epsilon) { | |
| 52 double a = *((float*) d1); | |
| 53 double b = *((float*) d2); | |
| 54 double e = !epsilon ? 1e-14 : *((double*)epsilon); | |
| 55 if (fabs(a - b) < e) { | |
| 56 return 0; | |
| 57 } else { | |
| 58 return a < b ? -1 : 1; | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 int ucx_ptrcmp(void *ptr1, void *ptr2, void *data) { | |
| 63 if (ptr1 == ptr2) { | |
| 64 return 0; | |
| 65 } else { | |
| 66 return ptr1 < ptr2 ? -1 : 1; | |
| 67 } | |
| 68 } | |
| 69 | |
| 70 int ucx_memcmp(void *ptr1, void *ptr2, void *n) { | |
| 71 return memcmp(ptr1, ptr2, *((size_t*)n)); | |
| 72 } |
