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add functions for comparing and duplicating arrays

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This commit is contained in:
B. Petersen 2018-03-02 21:47:48 +01:00
parent e6f14ab8e0
commit 17b080fc11
2 changed files with 40 additions and 0 deletions
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8
cmdline/stress.c
View file

@ -390,6 +390,14 @@ void stress_functions(mrmailbox_t* mailbox)
mrarray_empty(arr);
assert( mrarray_get_cnt(arr) == 0 );
mrarray_add_id(arr, 13);
mrarray_add_id(arr, 7);
mrarray_add_id(arr, 666);
mrarray_add_id(arr, 0);
mrarray_add_id(arr, 5000);
mrarray_sort(arr);
assert( mrarray_get_id(arr, 0)==0 && mrarray_get_id(arr, 1)==7 && mrarray_get_id(arr, 2)==13 && mrarray_get_id(arr, 3)==666 );
mrarray_unref(arr);
}

32
src/mrarray.c
View file

@ -80,6 +80,38 @@ void mrarray_unref(mrarray_t* array)
}
mrarray_t* mrarray_duplicate(const mrarray_t* array)
{
mrarray_t* ret = NULL;
if( array==NULL || array->m_magic != MR_ARRAY_MAGIC ) {
return NULL;
}
ret = mrarray_new(array->m_mailbox, array->m_allocated);
ret->m_count = array->m_count;
memcpy(ret->m_array, array->m_array, array->m_count * sizeof(uintptr_t));
return ret;
}
static int cmp_intptr_t(const void* p1, const void* p2)
{
uintptr_t v1 = *(uintptr_t*)p1, v2 = *(uintptr_t*)p2;
return (v1<v2)? -1 : ((v1>v2)? 1 : 0); /* CAVE: do not use v1-v2 as the uintptr_t may be 64bit and the return value may be 32bit only... */
}
void mrarray_sort(mrarray_t* array)
{
if( array == NULL || array->m_magic != MR_ARRAY_MAGIC || array->m_count <= 1 ) {
return;
}
qsort(array->m_array, array->m_count, sizeof(uintptr_t), cmp_intptr_t);
}
/**
* Empty an array object. Allocated data is not freed by this function, only the count is set to null.
*