ucx: ucx/comparator.c@7625a8efcc97 (annotated)

ucx/comparator.c@7625a8efcc97 (annotated)

Wed, 27 Feb 2013 10:57:40 +0100

added floating point comparators

 #include "comparator.h"
 #include "math.h"
 int ucx_strcmp(void *s1, void *s2, void *data) {
     return strcmp((char*)s1, (char*)s2);
 }
 int ucx_strncmp(void *s1, void *s2, void *n) {
     return strncmp((char*)s1, (char*)s2, *((size_t*) n));
 }
 int ucx_intcmp(void *i1, void *i2, void *data) {
    int a = *((int*) i1);
    int b = *((int*) i2);
    if (a == b) {
        return 0;
    } else {
        return a < b ? -1 : 1;
    }
 }
 int ucx_floatcmp(void *f1, void *f2, void *epsilon) {
    float a = *((float*) f1);
    float b = *((float*) f2);
    float e = !epsilon ? 1e-6f : *((float*)epsilon);
    if (fabsf(a - b) < e) {
        return 0;
    } else {
        return a < b ? -1 : 1;
    }
 }
 int ucx_doublecmp(void *d1, void *d2, void *epsilon) {
    double a = *((float*) d1);
    double b = *((float*) d2);
    double e = !epsilon ? 1e-14 : *((double*)epsilon);
    if (fabs(a - b) < e) {
        return 0;
    } else {
        return a < b ? -1 : 1;
    }
 }
 int ucx_ptrcmp(void *ptr1, void *ptr2, void *data) {
     if (ptr1 == ptr2) {
         return 0;
     } else {
         return ptr1 < ptr2 ? -1 : 1;
     }
 }
 int ucx_memcmp(void *ptr1, void *ptr2, void *n) {
     return memcmp(ptr1, ptr2, *((size_t*)n));
 }