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Update uuid.cpp

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2 pass format_token, 1st gets the length required second passes it to target.
This commit is contained in:
marauder2k7 2024-07-23 07:58:03 +01:00
parent 3e57c709d9
commit 0853748f12
1 changed files with 8 additions and 1 deletions
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9
Engine/source/core/util/uuid.cpp
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@ -146,7 +146,14 @@ static void create_uuid_state(uuid_state *st)
*/
static void format_token(char *target, const xuuid_t *u)
{
snprintf(target, strlen(target), "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
// first loop, figure out the size needed.
size_t len = (size_t)snprintf(NULL, 0, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
u->time_low, u->time_mid, u->time_hi_and_version,
u->clock_seq_hi_and_reserved, u->clock_seq_low,
u->node[0], u->node[1], u->node[2],
u->node[3], u->node[4], u->node[5]);
snprintf(target, len+1, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
u->time_low, u->time_mid, u->time_hi_and_version,
u->clock_seq_hi_and_reserved, u->clock_seq_low,
u->node[0], u->node[1], u->node[2],