Fix 11983: False positive: uninitialized variable (#5443)

This commit is contained in:
Paul Fultz II 2023-09-13 16:27:08 -05:00 committed by GitHub
parent 11e5c110e6
commit e6632d93e3
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GPG Key ID: 4AEE18F83AFDEB23
10 changed files with 318 additions and 99 deletions

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@ -456,7 +456,7 @@ validateRules:
###### Build ###### Build
$(libcppdir)/valueflow.o: lib/valueflow.cpp lib/analyzer.h lib/astutils.h lib/calculate.h lib/check.h lib/checkuninitvar.h lib/color.h lib/config.h lib/ctu.h lib/errorlogger.h lib/errortypes.h lib/forwardanalyzer.h lib/importproject.h lib/infer.h lib/library.h lib/mathlib.h lib/path.h lib/platform.h lib/programmemory.h lib/reverseanalyzer.h lib/settings.h lib/smallvector.h lib/sourcelocation.h lib/standards.h lib/suppressions.h lib/symboldatabase.h lib/templatesimplifier.h lib/timer.h lib/token.h lib/tokenize.h lib/tokenlist.h lib/utils.h lib/valueflow.h lib/valueptr.h lib/vfvalue.h $(libcppdir)/valueflow.o: lib/valueflow.cpp lib/analyzer.h lib/astutils.h lib/calculate.h lib/check.h lib/checkuninitvar.h lib/color.h lib/config.h lib/ctu.h lib/errorlogger.h lib/errortypes.h lib/findtoken.h lib/forwardanalyzer.h lib/importproject.h lib/infer.h lib/library.h lib/mathlib.h lib/path.h lib/platform.h lib/programmemory.h lib/reverseanalyzer.h lib/settings.h lib/smallvector.h lib/sourcelocation.h lib/standards.h lib/suppressions.h lib/symboldatabase.h lib/templatesimplifier.h lib/timer.h lib/token.h lib/tokenize.h lib/tokenlist.h lib/utils.h lib/valueflow.h lib/valueptr.h lib/vfvalue.h
$(CXX) ${INCLUDE_FOR_LIB} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $(libcppdir)/valueflow.cpp $(CXX) ${INCLUDE_FOR_LIB} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $(libcppdir)/valueflow.cpp
$(libcppdir)/tokenize.o: lib/tokenize.cpp externals/simplecpp/simplecpp.h lib/check.h lib/color.h lib/config.h lib/errorlogger.h lib/errortypes.h lib/importproject.h lib/library.h lib/mathlib.h lib/platform.h lib/preprocessor.h lib/settings.h lib/sourcelocation.h lib/standards.h lib/summaries.h lib/suppressions.h lib/symboldatabase.h lib/templatesimplifier.h lib/timer.h lib/token.h lib/tokenize.h lib/tokenlist.h lib/utils.h lib/valueflow.h lib/vfvalue.h $(libcppdir)/tokenize.o: lib/tokenize.cpp externals/simplecpp/simplecpp.h lib/check.h lib/color.h lib/config.h lib/errorlogger.h lib/errortypes.h lib/importproject.h lib/library.h lib/mathlib.h lib/platform.h lib/preprocessor.h lib/settings.h lib/sourcelocation.h lib/standards.h lib/summaries.h lib/suppressions.h lib/symboldatabase.h lib/templatesimplifier.h lib/timer.h lib/token.h lib/tokenize.h lib/tokenlist.h lib/utils.h lib/valueflow.h lib/vfvalue.h
@ -468,7 +468,7 @@ $(libcppdir)/symboldatabase.o: lib/symboldatabase.cpp lib/astutils.h lib/color.h
$(libcppdir)/analyzerinfo.o: lib/analyzerinfo.cpp externals/tinyxml2/tinyxml2.h lib/analyzerinfo.h lib/color.h lib/config.h lib/errorlogger.h lib/errortypes.h lib/importproject.h lib/path.h lib/platform.h lib/utils.h $(libcppdir)/analyzerinfo.o: lib/analyzerinfo.cpp externals/tinyxml2/tinyxml2.h lib/analyzerinfo.h lib/color.h lib/config.h lib/errorlogger.h lib/errortypes.h lib/importproject.h lib/path.h lib/platform.h lib/utils.h
$(CXX) ${INCLUDE_FOR_LIB} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $(libcppdir)/analyzerinfo.cpp $(CXX) ${INCLUDE_FOR_LIB} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $(libcppdir)/analyzerinfo.cpp
$(libcppdir)/astutils.o: lib/astutils.cpp lib/astutils.h lib/check.h lib/checkclass.h lib/config.h lib/errortypes.h lib/importproject.h lib/infer.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/smallvector.h lib/sourcelocation.h lib/standards.h lib/suppressions.h lib/symboldatabase.h lib/templatesimplifier.h lib/token.h lib/tokenize.h lib/tokenlist.h lib/utils.h lib/valueflow.h lib/valueptr.h lib/vfvalue.h $(libcppdir)/astutils.o: lib/astutils.cpp lib/astutils.h lib/check.h lib/checkclass.h lib/config.h lib/errortypes.h lib/findtoken.h lib/importproject.h lib/infer.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/smallvector.h lib/sourcelocation.h lib/standards.h lib/suppressions.h lib/symboldatabase.h lib/templatesimplifier.h lib/token.h lib/tokenize.h lib/tokenlist.h lib/utils.h lib/valueflow.h lib/valueptr.h lib/vfvalue.h
$(CXX) ${INCLUDE_FOR_LIB} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $(libcppdir)/astutils.cpp $(CXX) ${INCLUDE_FOR_LIB} $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $(libcppdir)/astutils.cpp
$(libcppdir)/check.o: lib/check.cpp lib/check.h lib/color.h lib/config.h lib/errorlogger.h lib/errortypes.h lib/importproject.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/templatesimplifier.h lib/token.h lib/tokenize.h lib/tokenlist.h lib/utils.h lib/vfvalue.h $(libcppdir)/check.o: lib/check.cpp lib/check.h lib/color.h lib/config.h lib/errorlogger.h lib/errortypes.h lib/importproject.h lib/library.h lib/mathlib.h lib/platform.h lib/settings.h lib/standards.h lib/suppressions.h lib/templatesimplifier.h lib/token.h lib/tokenize.h lib/tokenlist.h lib/utils.h lib/vfvalue.h

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@ -22,6 +22,7 @@
#include "config.h" #include "config.h"
#include "errortypes.h" #include "errortypes.h"
#include "findtoken.h"
#include "infer.h" #include "infer.h"
#include "library.h" #include "library.h"
#include "mathlib.h" #include "mathlib.h"
@ -2867,7 +2868,14 @@ bool isThisChanged(const Token* start, const Token* end, int indirect, const Set
return false; return false;
} }
bool isExpressionChanged(const Token* expr, const Token* start, const Token* end, const Settings* settings, bool cpp, int depth) template<class Find>
bool isExpressionChangedImpl(const Token* expr,
const Token* start,
const Token* end,
const Settings* settings,
bool cpp,
int depth,
Find find)
{ {
if (depth < 0) if (depth < 0)
return true; return true;
@ -2888,7 +2896,7 @@ bool isExpressionChanged(const Token* expr, const Token* start, const Token* end
} }
if (tok->exprId() > 0) { if (tok->exprId() > 0) {
for (const Token* tok2 = start; tok2 != end; tok2 = tok2->next()) { const Token* result = find(start, end, [&](const Token* tok2) {
int indirect = 0; int indirect = 0;
if (const ValueType* vt = tok->valueType()) { if (const ValueType* vt = tok->valueType()) {
indirect = vt->pointer; indirect = vt->pointer;
@ -2898,13 +2906,55 @@ bool isExpressionChanged(const Token* expr, const Token* start, const Token* end
for (int i = 0; i <= indirect; ++i) for (int i = 0; i <= indirect; ++i)
if (isExpressionChangedAt(tok, tok2, i, global, settings, cpp, depth)) if (isExpressionChangedAt(tok, tok2, i, global, settings, cpp, depth))
return true; return true;
} return false;
});
if (result)
return true;
} }
return false; return false;
}); });
return result; return result;
} }
struct ExpressionChangedSimpleFind {
template<class F>
const Token* operator()(const Token* start, const Token* end, F f) const
{
return findToken(start, end, f);
}
};
struct ExpressionChangedSkipDeadCode {
const Library* library;
const std::function<std::vector<MathLib::bigint>(const Token* tok)>* evaluate;
ExpressionChangedSkipDeadCode(const Library* library,
const std::function<std::vector<MathLib::bigint>(const Token* tok)>& evaluate)
: library(library), evaluate(&evaluate)
{}
template<class F>
const Token* operator()(const Token* start, const Token* end, F f) const
{
return findTokenSkipDeadCode(library, start, end, f, *evaluate);
}
};
bool isExpressionChanged(const Token* expr, const Token* start, const Token* end, const Settings* settings, bool cpp, int depth)
{
return isExpressionChangedImpl(expr, start, end, settings, cpp, depth, ExpressionChangedSimpleFind{});
}
bool isExpressionChangedSkipDeadCode(const Token* expr,
const Token* start,
const Token* end,
const Settings* settings,
bool cpp,
const std::function<std::vector<MathLib::bigint>(const Token* tok)>& evaluate,
int depth)
{
return isExpressionChangedImpl(
expr, start, end, settings, cpp, depth, ExpressionChangedSkipDeadCode{&settings->library, evaluate});
}
const Token* getArgumentStart(const Token* ftok) const Token* getArgumentStart(const Token* ftok)
{ {
const Token* tok = ftok; const Token* tok = ftok;

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@ -345,6 +345,14 @@ CPPCHECKLIB bool isExpressionChanged(const Token* expr,
bool cpp, bool cpp,
int depth = 20); int depth = 20);
bool isExpressionChangedSkipDeadCode(const Token* expr,
const Token* start,
const Token* end,
const Settings* settings,
bool cpp,
const std::function<std::vector<MathLib::bigint>(const Token* tok)>& evaluate,
int depth = 20);
bool isExpressionChangedAt(const Token* expr, bool isExpressionChangedAt(const Token* expr,
const Token* tok, const Token* tok,
int indirect, int indirect,

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@ -128,6 +128,7 @@
<ClInclude Include="ctu.h" /> <ClInclude Include="ctu.h" />
<ClInclude Include="errorlogger.h" /> <ClInclude Include="errorlogger.h" />
<ClInclude Include="errortypes.h" /> <ClInclude Include="errortypes.h" />
<ClInclude Include="findtoken.h" />
<ClInclude Include="forwardanalyzer.h" /> <ClInclude Include="forwardanalyzer.h" />
<ClInclude Include="fwdanalysis.h" /> <ClInclude Include="fwdanalysis.h" />
<ClInclude Include="importproject.h" /> <ClInclude Include="importproject.h" />

221
lib/findtoken.h Normal file
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@ -0,0 +1,221 @@
/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2023 Cppcheck team.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
//---------------------------------------------------------------------------
#ifndef findtokenH
#define findtokenH
//---------------------------------------------------------------------------
#include <functional>
#include <stack>
#include <string>
#include <type_traits>
#include <vector>
#include "config.h"
#include "errortypes.h"
#include "library.h"
#include "smallvector.h"
#include "symboldatabase.h"
#include "token.h"
inline std::vector<MathLib::bigint> evaluateKnownValues(const Token* tok)
{
if (!tok->hasKnownIntValue())
return {};
return {tok->getKnownIntValue()};
}
template<class T, class Predicate, class Found, REQUIRES("T must be a Token class", std::is_convertible<T*, const Token*> )>
void findTokensImpl(T* start, const Token* end, const Predicate& pred, Found found)
{
for (T* tok = start; precedes(tok, end); tok = tok->next()) {
if (pred(tok)) {
if (found(tok))
break;
}
}
}
template<class T, class Predicate, REQUIRES("T must be a Token class", std::is_convertible<T*, const Token*> )>
std::vector<T*> findTokens(T* start, const Token* end, const Predicate& pred)
{
std::vector<T*> result;
findTokensImpl(start, end, pred, [&](T* tok) {
result.push_back(tok);
return false;
});
return result;
}
template<class T, class Predicate, REQUIRES("T must be a Token class", std::is_convertible<T*, const Token*> )>
T* findToken(T* start, const Token* end, const Predicate& pred)
{
T* result = nullptr;
findTokensImpl(start, end, pred, [&](T* tok) {
result = tok;
return true;
});
return result;
}
template<class T,
class Predicate,
class Found,
class Evaluate,
REQUIRES("T must be a Token class", std::is_convertible<T*, const Token*> )>
bool findTokensSkipDeadCodeImpl(const Library* library,
T* start,
const Token* end,
const Predicate& pred,
Found found,
const Evaluate& evaluate)
{
for (T* tok = start; precedes(tok, end); tok = tok->next()) {
if (pred(tok)) {
if (found(tok))
return true;
}
if (Token::Match(tok, "if|for|while (") && Token::simpleMatch(tok->next()->link(), ") {")) {
const Token* condTok = getCondTok(tok);
if (!condTok)
continue;
auto result = evaluate(condTok);
if (result.empty())
continue;
if (findTokensSkipDeadCodeImpl(library, tok->next(), tok->linkAt(1), pred, found, evaluate))
return true;
T* thenStart = tok->linkAt(1)->next();
T* elseStart = nullptr;
if (Token::simpleMatch(thenStart->link(), "} else {"))
elseStart = thenStart->link()->tokAt(2);
int r = result.front();
if (r == 0) {
if (elseStart) {
if (findTokensSkipDeadCodeImpl(library, elseStart, elseStart->link(), pred, found, evaluate))
return true;
if (isReturnScope(elseStart->link(), library))
return true;
tok = elseStart->link();
} else {
tok = thenStart->link();
}
} else {
if (findTokensSkipDeadCodeImpl(library, thenStart, thenStart->link(), pred, found, evaluate))
return true;
if (isReturnScope(thenStart->link(), library))
return true;
tok = thenStart->link();
}
} else if (Token::Match(tok->astParent(), "&&|?|%oror%") && astIsLHS(tok)) {
auto result = evaluate(tok);
if (result.empty())
continue;
const bool cond = result.front() != 0;
T* next = nullptr;
if ((cond && Token::simpleMatch(tok->astParent(), "||")) ||
(!cond && Token::simpleMatch(tok->astParent(), "&&"))) {
next = nextAfterAstRightmostLeaf(tok->astParent());
} else if (Token::simpleMatch(tok->astParent(), "?")) {
T* colon = tok->astParent()->astOperand2();
if (!cond) {
next = colon;
} else {
if (findTokensSkipDeadCodeImpl(library, tok->astParent()->next(), colon, pred, found, evaluate))
return true;
next = nextAfterAstRightmostLeaf(colon);
}
}
if (next)
tok = next;
} else if (Token::simpleMatch(tok, "} else {")) {
const Token* condTok = getCondTokFromEnd(tok);
if (!condTok)
continue;
auto result = evaluate(condTok);
if (result.empty())
continue;
if (isReturnScope(tok->link(), library))
return true;
int r = result.front();
if (r != 0) {
tok = tok->linkAt(2);
}
} else if (Token::simpleMatch(tok, "[") && Token::Match(tok->link(), "] (|{")) {
T* afterCapture = tok->link()->next();
if (Token::simpleMatch(afterCapture, "(") && afterCapture->link())
tok = afterCapture->link()->next();
else
tok = afterCapture;
}
}
return false;
}
template<class T, class Predicate, class Evaluate, REQUIRES("T must be a Token class", std::is_convertible<T*, const Token*> )>
std::vector<T*> findTokensSkipDeadCode(const Library* library,
T* start,
const Token* end,
const Predicate& pred,
const Evaluate& evaluate)
{
std::vector<T*> result;
findTokensSkipDeadCodeImpl(
library,
start,
end,
pred,
[&](T* tok) {
result.push_back(tok);
return false;
},
evaluate);
return result;
}
template<class T, class Predicate, REQUIRES("T must be a Token class", std::is_convertible<T*, const Token*> )>
std::vector<T*> findTokensSkipDeadCode(const Library* library, T* start, const Token* end, const Predicate& pred)
{
return findTokensSkipDeadCode(library, start, end, pred, &evaluateKnownValues);
}
template<class T, class Predicate, class Evaluate, REQUIRES("T must be a Token class", std::is_convertible<T*, const Token*> )>
T* findTokenSkipDeadCode(const Library* library, T* start, const Token* end, const Predicate& pred, const Evaluate& evaluate)
{
T* result = nullptr;
findTokensSkipDeadCodeImpl(
library,
start,
end,
pred,
[&](T* tok) {
result = tok;
return true;
},
evaluate);
return result;
}
template<class T, class Predicate, REQUIRES("T must be a Token class", std::is_convertible<T*, const Token*> )>
T* findTokenSkipDeadCode(const Library* library, T* start, const Token* end, const Predicate& pred)
{
return findTokenSkipDeadCode(library, start, end, pred, &evaluateKnownValues);
}
#endif // findtokenH

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@ -41,6 +41,7 @@ HEADERS += $${PWD}/analyzer.h \
$${PWD}/ctu.h \ $${PWD}/ctu.h \
$${PWD}/errorlogger.h \ $${PWD}/errorlogger.h \
$${PWD}/errortypes.h \ $${PWD}/errortypes.h \
$${PWD}/findtoken.h \
$${PWD}/forwardanalyzer.h \ $${PWD}/forwardanalyzer.h \
$${PWD}/fwdanalysis.h \ $${PWD}/fwdanalysis.h \
$${PWD}/importproject.h \ $${PWD}/importproject.h \

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@ -486,10 +486,18 @@ void ProgramMemoryState::assume(const Token* tok, bool b, bool isEmpty)
void ProgramMemoryState::removeModifiedVars(const Token* tok) void ProgramMemoryState::removeModifiedVars(const Token* tok)
{ {
ProgramMemory pm = state;
auto eval = [&](const Token* cond) -> std::vector<MathLib::bigint> {
if (conditionIsTrue(cond, pm))
return {1};
if (conditionIsFalse(cond, pm))
return {0};
return {};
};
state.erase_if([&](const ExprIdToken& e) { state.erase_if([&](const ExprIdToken& e) {
const Token* start = origins[e.getExpressionId()]; const Token* start = origins[e.getExpressionId()];
const Token* expr = e.tok; const Token* expr = e.tok;
if (!expr || isExpressionChanged(expr, start, tok, settings, true)) { if (!expr || isExpressionChangedSkipDeadCode(expr, start, tok, settings, true, eval)) {
origins.erase(e.getExpressionId()); origins.erase(e.getExpressionId());
return true; return true;
} }

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@ -84,6 +84,7 @@
#include "config.h" #include "config.h"
#include "errorlogger.h" #include "errorlogger.h"
#include "errortypes.h" #include "errortypes.h"
#include "findtoken.h"
#include "forwardanalyzer.h" #include "forwardanalyzer.h"
#include "infer.h" #include "infer.h"
#include "library.h" #include "library.h"
@ -7802,99 +7803,6 @@ static void addToErrorPath(ValueFlow::Value& value, const ValueFlow::Value& from
}); });
} }
template<class Found, class Predicate>
bool findTokenSkipDeadCodeImpl(const Library* library, Token* start, const Token* end, Predicate pred, Found found)
{
for (Token* tok = start; precedes(tok, end); tok = tok->next()) {
if (pred(tok)) {
if (found(tok))
return true;
}
if (Token::simpleMatch(tok, "if (")) {
const Token* condTok = tok->next()->astOperand2();
if (!condTok)
continue;
if (!condTok->hasKnownIntValue())
continue;
if (!Token::simpleMatch(tok->linkAt(1), ") {"))
continue;
if (findTokenSkipDeadCodeImpl(library, tok->next(), tok->linkAt(1), pred, found))
return true;
Token* thenStart = tok->linkAt(1)->next();
Token* elseStart = nullptr;
if (Token::simpleMatch(thenStart->link(), "} else {"))
elseStart = thenStart->link()->tokAt(2);
int r = condTok->values().front().intvalue;
if (r == 0) {
if (elseStart) {
if (findTokenSkipDeadCodeImpl(library, elseStart, elseStart->link(), pred, found))
return true;
if (isReturnScope(elseStart->link(), library))
return true;
tok = elseStart->link();
} else {
tok = thenStart->link();
}
} else {
if (findTokenSkipDeadCodeImpl(library, thenStart, thenStart->link(), pred, found))
return true;
if (isReturnScope(thenStart->link(), library))
return true;
tok = thenStart->link();
}
} else if (Token::Match(tok->astParent(), "&&|?|%oror%") && astIsLHS(tok) && tok->hasKnownIntValue()) {
const bool cond = tok->values().front().intvalue != 0;
Token* next = nullptr;
if ((cond && Token::simpleMatch(tok->astParent(), "||")) ||
(!cond && Token::simpleMatch(tok->astParent(), "&&"))) {
next = nextAfterAstRightmostLeaf(tok->astParent());
} else if (Token::simpleMatch(tok->astParent(), "?")) {
Token* colon = tok->astParent()->astOperand2();
if (!cond) {
next = colon;
} else {
if (findTokenSkipDeadCodeImpl(library, tok->astParent()->next(), colon, pred, found))
return true;
next = nextAfterAstRightmostLeaf(colon);
}
}
if (next)
tok = next;
} else if (Token::simpleMatch(tok, "} else {")) {
const Token* condTok = getCondTokFromEnd(tok);
if (!condTok)
continue;
if (!condTok->hasKnownIntValue())
continue;
if (isReturnScope(tok->link(), library))
return true;
int r = condTok->values().front().intvalue;
if (r != 0) {
tok = tok->linkAt(1);
}
} else if (Token::simpleMatch(tok, "[") && Token::Match(tok->link(), "] (|{")) {
Token* afterCapture = tok->link()->next();
if (Token::simpleMatch(afterCapture, "(") && afterCapture->link())
tok = afterCapture->link()->next();
else
tok = afterCapture;
}
}
return false;
}
template<class Predicate>
std::vector<Token*> findTokensSkipDeadCode(const Library* library, Token* start, const Token* end, Predicate pred)
{
std::vector<Token*> result;
findTokenSkipDeadCodeImpl(library, start, end, pred, [&](Token* tok) {
result.push_back(tok);
return false;
});
return result;
}
static std::vector<Token*> findAllUsages(const Variable* var, static std::vector<Token*> findAllUsages(const Variable* var,
Token* start, // cppcheck-suppress constParameterPointer // FP Token* start, // cppcheck-suppress constParameterPointer // FP
const Library* library) const Library* library)

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@ -3682,6 +3682,27 @@ private:
" ++c;\n" " ++c;\n"
"}", "test.c"); "}", "test.c");
ASSERT_EQUALS("", errout.str()); ASSERT_EQUALS("", errout.str());
valueFlowUninit("int do_something();\n"
"int set_st(int *x);\n"
"int bar();\n"
"void foo() {\n"
" int x, y;\n"
" int status = 1;\n"
" if (bar() == 1) {\n"
" status = 0;\n"
" }\n"
" if (status == 1) {\n"
" status = set_st(&x);\n"
" }\n"
" for (int i = 0; status == 1 && i < x; i++) {\n"
" if (do_something() == 0) {\n"
" status = 0;\n"
" }\n"
" }\n"
" if(status == 1 && x > 0){}\n"
"}\n");
ASSERT_EQUALS("", errout.str());
} }
void valueFlowUninit_uninitvar2() void valueFlowUninit_uninitvar2()

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@ -326,6 +326,7 @@ int main(int argc, char **argv)
libfiles_h.emplace_back("analyzer.h"); libfiles_h.emplace_back("analyzer.h");
libfiles_h.emplace_back("calculate.h"); libfiles_h.emplace_back("calculate.h");
libfiles_h.emplace_back("config.h"); libfiles_h.emplace_back("config.h");
libfiles_h.emplace_back("findtoken.h");
libfiles_h.emplace_back("json.h"); libfiles_h.emplace_back("json.h");
libfiles_h.emplace_back("precompiled.h"); libfiles_h.emplace_back("precompiled.h");
libfiles_h.emplace_back("smallvector.h"); libfiles_h.emplace_back("smallvector.h");