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Fixed #2264 (False positive: variable assigned value that is never used)

This commit is contained in:
Daniel Marjamäki 2010-12-03 18:45:49 +01:00
parent b29568c81d
commit 93ebdca313
2 changed files with 12 additions and 0 deletions
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2
lib/checkother.cpp
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@ -1650,6 +1650,8 @@ void CheckOther::functionVariableUsage()
variables.writeAliases(tok->varId());
variables.read(tok->varId());
}
else if (tok->varId() != varid1 && Token::Match(tok, "%var% . %var%"))
variables.use(tok->varId());
}
const Token *equal = tok->next();

10
test/testunusedvar.cpp
View File

@ -76,6 +76,7 @@ private:
TEST_CASE(localvar27); // ticket #2160
TEST_CASE(localvar28); // ticket #2205
TEST_CASE(localvar29); // ticket #2206 (array initialization)
TEST_CASE(localvar30);
TEST_CASE(localvaralias1);
TEST_CASE(localvaralias2); // ticket #1637
TEST_CASE(localvaralias3); // ticket #1639
@ -1305,6 +1306,15 @@ private:
ASSERT_EQUALS("", errout.str());
}
void localvar30() // ticket #2264
{
functionVariableUsage("void f() {\n"
" Engine *engine = e;\n"
" x->engine = engine->clone();\n"
"}\n");
ASSERT_EQUALS("", errout.str());
}
void localvaralias1()
{
functionVariableUsage("void foo()\n"