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glib-aux: add nm_memcmp_n()/nm_memeq_n() helpers

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Thomas Haller 2021-09-29 20:43:21 +02:00
parent 8ad4f7b70f
commit e60843e245
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1 changed files with 19 additions and 0 deletions
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19
src/libnm-glib-aux/nm-macros-internal.h
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@ -1174,6 +1174,25 @@ _NM_IN_STRSET_EVAL_op_streq_ascii_case(const char *x1, const char *x)
/*****************************************************************************/
static inline int
nm_memcmp_n(gconstpointer p1, gsize len1, gconstpointer p2, gsize len2, gsize element_size)
{
nm_assert(element_size > 0);
NM_CMP_DIRECT(len1, len2);
if (len1 > 0)
NM_CMP_DIRECT_MEMCMP(p1, p2, len1 * element_size);
return 0;
}
static inline int
nm_memeq_n(gconstpointer p1, gsize len1, gconstpointer p2, gsize len2, gsize element_size)
{
return nm_memcmp_n(p1, len1, p2, len2, element_size) == 0;
}
/*****************************************************************************/
/* like g_memdup(). The difference is that the @size argument is of type
* gsize, while g_memdup() has type guint. Since, the size of container types
* like GArray is guint as well, this means trying to g_memdup() an