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Remove false positives for nested logic

This commit is contained in:
Richard Quirk 2011-11-12 10:23:34 +01:00
parent b0574cd02e
commit 511ac0ab1f
2 changed files with 18 additions and 3 deletions
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12
lib/checkother.cpp
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@ -2405,8 +2405,14 @@ void CheckOther::checkExpressionRange(const Token *start, const Token *end, cons
return;
Expressions expressions;
std::string opName;
int level = 0;
for (const Token *tok = start->next(); tok && tok != end; tok = tok->next()) {
if (Token::Match(tok, toCheck.c_str())) {
if (tok->str() == ")")
level--;
else if (tok->str() == "(")
level++;
if (level == 0 && Token::Match(tok, toCheck.c_str())) {
opName = tok->str();
expressions.endExpr();
} else {
@ -2445,7 +2451,7 @@ void CheckOther::complexDuplicateExpressionCheck(const Token *classStart,
else if (tok1->str() == "(")
level--;
if (level < 0 || Token::Match(tok1, statementStart.c_str())) {
if (level < 0 || (level == 0 && Token::Match(tok1, statementStart.c_str()))) {
start = tok1;
break;
}
@ -2459,7 +2465,7 @@ void CheckOther::complexDuplicateExpressionCheck(const Token *classStart,
else if (tok1->str() == "(")
level++;
if (level < 0 || Token::Match(tok1, statementEnd.c_str())) {
if (level < 0 || (level == 0 && Token::Match(tok1, statementEnd.c_str()))) {
end = tok1;
break;
}

9
test/testother.cpp
View File

@ -3654,10 +3654,19 @@ private:
" if ((a + b) | (a + b)) {}\n"
"}");
ASSERT_EQUALS("[test.cpp:2] -> [test.cpp:2]: (style) Same expression on both sides of '|'.\n", errout.str());
check("void foo() {\n"
" if ((a | b) & (a | b)) {}\n"
"}");
ASSERT_EQUALS("[test.cpp:2] -> [test.cpp:2]: (style) Same expression on both sides of '&'.\n", errout.str());
check("void d(const char f, int o, int v)\n"
"{\n"
" if (((f=='R') && (o == 1) && ((v < 2) || (v > 99))) ||\n"
" ((f=='R') && (o == 2) && ((v < 2) || (v > 99))) ||\n"
" ((f=='T') && (o == 2) && ((v < 200) || (v > 9999)))) {}\n"
"}\n");
ASSERT_EQUALS("", errout.str());
}
void duplicateExpression2() { // ticket #2730