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Fixed #1605 (false positive: uninitialized variable)

This commit is contained in:
Robert Reif 2010-04-16 16:25:57 +02:00 committed by Daniel Marjamäki
parent 45573ad101
commit 61b5a21ac9
2 changed files with 14 additions and 1 deletions
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2
lib/checkother.cpp
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@ -660,7 +660,7 @@ void CheckOther::functionVariableUsage()
else if (Token::Match(tok, "%var% ="))
varUsage[tok->str()].write = true;
else if (Token::Match(tok, "%var% [ %any% ] ="))
else if (Token::Match(tok, "%var% [") && Token::Match(tok->next()->link(), "] ="))
varUsage[tok->str()].write = true;
else if (Token::Match(tok, "else %var% ="))

13
test/testunusedvar.cpp
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@ -69,6 +69,7 @@ private:
TEST_CASE(localvar6);
TEST_CASE(localvar7);
TEST_CASE(localvar8);
TEST_CASE(localvar9); // ticket #1605
TEST_CASE(localvarasm);
// Don't give false positives for variables in structs/unions
@ -525,6 +526,18 @@ private:
ASSERT_EQUALS("", errout.str());
}
void localvar9()
{
// ticket #1605
functionVariableUsage("void foo()\n"
"{\n"
" int a[10];\n"
" for (int i = 0; i < 10; )\n"
" a[i++] = 0;\n"
"}\n");
ASSERT_EQUALS("[test.cpp:2]: (style) Variable 'a' is assigned a value that is never used\n", errout.str());
}
void localvarasm()
{
functionVariableUsage("void foo(int &b)\n"