From 933274c438107adadde5ff854340ed1fae18d3fe Mon Sep 17 00:00:00 2001
From: dundargoc <33953936+dundargoc@users.noreply.github.com>
Date: Mon, 25 Apr 2022 03:51:22 +0200
Subject: fix/PVS #17863

* fix(PVS/V002): disable rule completely

V002: "Some diagnostic messages may contain incorrect line number in
this file." This particular check seems unreliable. It says on their
website https://pvs-studio.com/en/docs/warnings/v002/ that this warning
occurs when there are multiline pragmas, but there are none in
extmark.c.

* fix(PVS/V756): ignore "counter is not used inside a nested loop" warning

The nested loop starts with "AutoCmd *ac = ap->cmds" so "ap" is
definitely used.

* fix(PVS/V560): disable "a part of conditional expression is always true"

* fix(PVS/V614): potentially uninitialized variable 'blen' used
---
 src/nvim/autocmd.c | 2 +-
 src/nvim/fileio.c  | 2 +-
 src/nvim/fold.c    | 1 +
 3 files changed, 3 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/nvim/autocmd.c b/src/nvim/autocmd.c
index 77d4115b59..173f8e17af 100644
--- a/src/nvim/autocmd.c
+++ b/src/nvim/autocmd.c
@@ -2449,7 +2449,7 @@ bool autocmd_delete_id(int64_t id)
 
   // Note that since multiple AutoCmd objects can have the same ID, we need to do a full scan.
   FOR_ALL_AUEVENTS(event) {
-    FOR_ALL_AUPATS_IN_EVENT(event, ap) {
+    FOR_ALL_AUPATS_IN_EVENT(event, ap) {  // -V756
       for (AutoCmd *ac = ap->cmds; ac != NULL; ac = ac->next) {
         if (ac->id == id) {
           aucmd_del(ac);
diff --git a/src/nvim/fileio.c b/src/nvim/fileio.c
index d4407b4982..be66a6ce80 100644
--- a/src/nvim/fileio.c
+++ b/src/nvim/fileio.c
@@ -1118,7 +1118,7 @@ retry:
                   && tmpname == NULL
                   && (*fenc == 'u' || *fenc == NUL)))) {
         char_u *ccname;
-        int blen;
+        int blen = 0;
 
         // no BOM detection in a short file or in binary mode
         if (size < 2 || curbuf->b_p_bin) {
diff --git a/src/nvim/fold.c b/src/nvim/fold.c
index e08d6d4a4e..bc31fe42ba 100644
--- a/src/nvim/fold.c
+++ b/src/nvim/fold.c
@@ -2752,6 +2752,7 @@ static void truncate_fold(win_T *const wp, fold_T *fp, linenr_T end)
 }
 
 #define FOLD_END(fp) ((fp)->fd_top + (fp)->fd_len - 1)
+// -V:VALID_FOLD:V560
 #define VALID_FOLD(fp, gap) \
   ((gap)->ga_len > 0 && (fp) < ((fold_T *)(gap)->ga_data + (gap)->ga_len))
 #define FOLD_INDEX(fp, gap) ((size_t)((fp) - ((fold_T *)(gap)->ga_data)))
-- 
cgit