| Server IP : 13.213.54.232 / Your IP : 216.73.216.72 Web Server : Apache/2.4.52 (Ubuntu) System : Linux ip-172-31-17-110 6.8.0-1029-aws #31~22.04.1-Ubuntu SMP Thu Apr 24 21:16:18 UTC 2025 x86_64 User : www-data ( 33) PHP Version : 7.1.33-67+ubuntu22.04.1+deb.sury.org+1 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals, MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /proc/thread-self/root/usr/lib/modules/6.8.0-1031-aws/build/scripts/coccinelle/misc/ |
Upload File : |
// SPDX-License-Identifier: GPL-2.0-only
///
/// Check for opencoded swap() implementation.
///
// Confidence: High
// Copyright: (C) 2021 Denis Efremov ISPRAS
// Options: --no-includes --include-headers
//
// Keywords: swap
//
virtual patch
virtual org
virtual report
virtual context
@rvar depends on !patch@
identifier tmp;
expression a, b;
type T;
position p;
@@
(
* T tmp;
|
* T tmp = 0;
|
* T *tmp = NULL;
)
... when != tmp
* tmp = a;
* a = b;@p
* b = tmp;
... when != tmp
@r depends on !patch@
identifier tmp;
expression a, b;
position p != rvar.p;
@@
* tmp = a;
* a = b;@p
* b = tmp;
@rpvar depends on patch@
identifier tmp;
expression a, b;
type T;
@@
(
- T tmp;
|
- T tmp = 0;
|
- T *tmp = NULL;
)
... when != tmp
- tmp = a;
- a = b;
- b = tmp
+ swap(a, b)
;
... when != tmp
@rp depends on patch@
identifier tmp;
expression a, b;
@@
- tmp = a;
- a = b;
- b = tmp
+ swap(a, b)
;
@depends on patch && (rpvar || rp)@
@@
(
for (...;...;...)
- {
swap(...);
- }
|
while (...)
- {
swap(...);
- }
|
if (...)
- {
swap(...);
- }
)
@script:python depends on report@
p << r.p;
@@
coccilib.report.print_report(p[0], "WARNING opportunity for swap()")
@script:python depends on org@
p << r.p;
@@
coccilib.org.print_todo(p[0], "WARNING opportunity for swap()")
@script:python depends on report@
p << rvar.p;
@@
coccilib.report.print_report(p[0], "WARNING opportunity for swap()")
@script:python depends on org@
p << rvar.p;
@@
coccilib.org.print_todo(p[0], "WARNING opportunity for swap()")