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Fix deprecated use of 0/NULL in internal_repo_rocksdb/repo/utilities/transactions/lock/range/range_tree/lib/locktree/wfg.cc + 3 

Summary:
`nullptr` is typesafe. `0` and `NULL` are not. In the future, only `nullptr` will be allowed.

This diff helps us embrace the future _now_ in service of enabling `-Wzero-as-null-pointer-constant`.

Reviewed By: meyering

Differential Revision: D54163069

fbshipit-source-id: e5bb4b6ee79d82f1437ffed602bdb41dcfc0e59a
This commit is contained in:
Richard Barnes 2024-02-25 22:17:04 -08:00 committed by Facebook GitHub Bot
parent 2940acac00
commit a4ff83d1b2
2 changed files with 4 additions and 4 deletions
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2
utilities/transactions/lock/range/range_tree/lib/locktree/wfg.cc
View File

@ -91,7 +91,7 @@ void wfg::add_edge(TXNID a_txnid, TXNID b_txnid) {
// Return false otherwise.
bool wfg::node_exists(TXNID txnid) {
node *n = find_node(txnid);
return n != NULL;
return n != nullptr;
}
bool wfg::cycle_exists_from_node(node *target, node *head,

6
utilities/transactions/lock/range/range_tree/lib/util/dbt.cc
View File

@ -65,7 +65,7 @@ DBT *toku_init_dbt(DBT *dbt) {
}
DBT toku_empty_dbt(void) {
static const DBT empty_dbt = {.data = 0, .size = 0, .ulen = 0, .flags = 0};
static const DBT empty_dbt = {.data = nullptr, .size = 0, .ulen = 0, .flags = 0};
return empty_dbt;
}
@ -118,13 +118,13 @@ void toku_sdbt_cleanup(struct simple_dbt *sdbt) {
const DBT *toku_dbt_positive_infinity(void) {
static DBT positive_infinity_dbt = {
.data = 0, .size = 0, .ulen = 0, .flags = 0}; // port
.data = nullptr, .size = 0, .ulen = 0, .flags = 0}; // port
return &positive_infinity_dbt;
}
const DBT *toku_dbt_negative_infinity(void) {
static DBT negative_infinity_dbt = {
.data = 0, .size = 0, .ulen = 0, .flags = 0}; // port
.data = nullptr, .size = 0, .ulen = 0, .flags = 0}; // port
return &negative_infinity_dbt;
}