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// 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()")