C++ 这个错误意味着什么？警告：传递给需要非null参数[-Wnonnull]的被调用方的null
我不知道为什么会出现这个错误，或者它意味着什么？我正在尝试运行HistPlotter.C文件来创建直方图。然而，我得到一个错误，使它无法工作？我的绘图目录中有所有需要工作的.root文件，我的其他同学可以让它们工作C++ 这个错误意味着什么？警告：传递给需要非null参数[-Wnonnull]的被调用方的null,c++,root,C++,Root,我不知道为什么会出现这个错误，或者它意味着什么？我正在尝试运行HistPlotter.C文件来创建直方图。然而，我得到一个错误，使它无法工作？我的绘图目录中有所有需要工作的.root文件，我的其他同学可以让它们工作 Error in <TFile::TFile>: file hist-WenuNoJetsBVeto.root does not exist [/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so]cling_ru
Error in <TFile::TFile>: file hist-WenuNoJetsBVeto.root does not exist
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so]cling_runtime_internal_throwIfInvalidPointer (no debug info)
[<unknown binary>] (no debug info)
[<unknown binary>] (no debug info)
[<unknown binary>] (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so] cling::IncrementalExecutor::executeWrapper(llvm::StringRef, cling::Value*) const (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so] cling::Interpreter::RunFunction(clang::FunctionDecl const*, cling::Value*) (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so] cling::Interpreter::EvaluateInternal(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, cling::CompilationOptions, cling::Value*, cling::Transaction**, unsigned long) (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so] cling::MetaSema::actOnxCommand(llvm::StringRef, llvm::StringRef, cling::Value*) (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so] cling::MetaParser::isXCommand(cling::MetaSema::ActionResult&, cling::Value*) (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so] cling::MetaParser::isCommand(cling::MetaSema::ActionResult&, cling::Value*) (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so] cling::MetaProcessor::process(llvm::StringRef, cling::Interpreter::CompilationResult&, cling::Value*, bool) (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so] HandleInterpreterException(cling::MetaProcessor*, char const*, cling::Interpreter::CompilationResult&, cling::Value*) (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so] TCling::ProcessLine(char const*, TInterpreter::EErrorCode*) (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so] TCling::ProcessLineSynch(char const*, TInterpreter::EErrorCode*) (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCore.6.22.so] TApplication::ExecuteFile(char const*, int*, bool) (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/lib/libRint.6.22.so] TRint::ProcessLineNr(char const*, char const*, int*) (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/lib/libRint.6.22.so] TRint::Run(bool) (no debug info)
[/Users/andrewbarajas/root/root_v6.22.08/bin/root.exe] main (no debug info)
[/usr/lib/system/libdyld.dylib] start (no debug info)
Error in <HandleInterpreterException>: Trying to dereference null pointer or trying to call routine taking non-null arguments.
Execution of your code was aborted.
In file included from input_line_11:1:
/Users/andrewbarajas/root/Plotting/HistPlotter.C:252:23: warning: null passed to a callee that requires a non-null argument [-Wnonnull]
TH1F *h = (TH1F*) f->Get(histname.c_str());
^
错误：文件hist-WenuNoJetsBVeto.root不存在
[/Users/andrewbarajas/root/root\u v6.22.08/lib/libCling.so]cling\u runtime\u internal\u throwIfInvalidPointer（无调试信息）
[]（无调试信息）
[]（无调试信息）
[]（无调试信息）
[/Users/andrewbarajas/root/root\u v6.22.08/lib/libCling.so]cling:：IncrementalExecutor:：executeWrapper（llvm:：StringRef，cling:：Value*）常量（无调试信息）
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so]cling:：解释器：：运行函数（clang:：FunctionDecl const*，cling:：Value*）（无调试信息）
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so]cling:：解释器：：EvaluateInternal（std:：_1:：basic_string const&，cling:：compileationoptions，cling:：Value*，cling:：Transaction**，unsigned long）（无调试信息）
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so]cling:：MetaSema:：actOnxCommand（llvm:：StringRef，llvm:：StringRef，cling:：Value*）（无调试信息）
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so]cling:：MetaParser:：isXCommand（cling:：MetaSema:：ActionResult&，cling:：Value*）（无调试信息）
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so]cling:：MetaParser:：isCommand（cling:：MetaSema:：ActionResult&，cling:：Value*）（无调试信息）
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so]cling:：MetaProcessor:：process（llvm:：StringRef，cling:：解释器:：compilementresult&，cling:：Value*，bool）（无调试信息）
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so]HandleInterpreterException（CLANG:：MetaProcessor*，char const*，CLANG:：解释器：：编译结果&，CLANG:：Value*）（无调试信息）
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so]TCling:：ProcessLine（char const*，TInterpreter:：EErrorCode*）（无调试信息）
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCling.so]TCling:：ProcessLineSynch（char const*，TInterpreter:：EErrorCode*）（无调试信息）
[/Users/andrewbarajas/root/root_v6.22.08/lib/libCore.6.22.so]TApplication:：ExecuteFile（char const*，int*，bool）（无调试信息）
[/Users/andrewbarajas/root/root_v6.22.08/lib/libRint.6.22.so]TRint:：ProcessLineNr（char const*，char const*，int*）（无调试信息）
[/Users/andrewbarajas/root/root_v6.22.08/lib/libRint.6.22.so]TRint:：Run（bool）（无调试信息）
[/Users/andrewbarajas/root/root_v6.22.08/bin/root.exe]main（无调试信息）
[/usr/lib/system/libdyld.dylib]启动（无调试信息）
错误：尝试取消引用空指针或尝试调用采用非空参数的例程。
代码的执行被中止。
在输入_行_11:1中包含的文件中：
/Users/andrewbarajas/root/Plotting/HistPlotter.C:252:23:警告：传递给需要非null参数[-Wnonnull]的被调用方的null
TH1F*h=（TH1F*）f->Get（histname.c_str（））；
^
#include "include/AtlasStyle.C"
#include "include/AtlasLabels.C"
#include "include/AtlasUtils.C"
void groupSamples();
void makeGroupHist();
std::map<TString, float> db;
std::map<TString, float> dy;
std::map<TString, float> w;
std::map<TString, float> z;
std::map<TString, float> stop;
std::map<TString, float> tt;
std::map<TString, float> signalmap;
TH1F *h_db;
TH1F *h_drellyan;
TH1F *h_wjets;
TH1F *h_zjets;
TH1F *h_singletop;
TH1F *h_ttbar;
std::string histname = "h_event_selection";
float lumi = 1000.;
int rebin = 1; //20 - ZmInv //4 - wmt //1 - event selection
bool logy = true;
std::string signalmass = "400";
void HistPlotter(std::string mass = ""){
if(mass!= "") signalmass = mass;
SetAtlasStyle();
TH1::SetDefaultSumw2(true);
gROOT->Reset();
groupSamples();
makeGroupHist();
THStack *h_stack = new THStack("h_stack","");
h_db->SetFillColor(kRed);
h_drellyan->SetFillColor(kGreen);
h_wjets->SetFillColor(kMagenta);
h_zjets->SetFillColor(kBlue);
h_singletop->SetFillColor(kOrange);
h_ttbar->SetFillColor(kCyan);
h_stack->Add(h_db);
h_stack->Add(h_drellyan);
h_stack->Add(h_wjets);
h_stack->Add(h_zjets);
h_stack->Add(h_singletop);
h_stack->Add(h_ttbar);
TH1F *h_err = (TH1F*) h_db->Clone();
h_err->Add(h_drellyan);
h_err->Add(h_wjets);
h_err->Add(h_zjets);
h_err->Add(h_singletop);
h_err->Add(h_ttbar);
h_err->SetFillStyle(3004);
h_err->SetFillColor(kBlack);
h_err->SetLineColor(0);
h_err->SetMarkerStyle(1);
TFile *f_sig = TFile::Open(("hist-ZPrime" + signalmass + ".root").c_str());
TH1F* h_signal = (TH1F*) f_sig->Get(histname.c_str());
h_signal->Rebin(rebin);
TH1F* h_signal_clone = (TH1F*) h_signal->Clone();
//Rescale signal
h_signal->Scale(1e5*lumi*signalmap[("ZPrime" + signalmass).c_str()]);
h_signal->SetLineStyle(7);
h_signal->SetLineWidth(3);
h_signal->SetLineColor(kPink-8);
TFile *f_egamma = TFile::Open("hist-DataEgamma.root");
TFile *f_muon = TFile::Open("hist-DataMuons.root");
TH1F *h_data_egamma = (TH1F*) f_egamma->Get(histname.c_str());
TH1F *h_data_muon = (TH1F*) f_muon->Get(histname.c_str());
h_data_egamma->Rebin(rebin);
h_data_muon->Rebin(rebin);
TH1F *h_data = (TH1F*) h_data_egamma->Clone();
h_data->Add(h_data_muon);
h_data->SetMarkerSize(1);
h_data->SetMarkerStyle(20);
h_data->SetMarkerColor(kBlack);
/// Chi2
//double chi2_test = h_data->Chi2Test(h_err, "UW,P");
//cout<<"chi2_test "<<chi2_test<<endl;
// I will print some numbers here based on the h_signal, h_data and h_err (sum of all backgrounds) histograms
float cut = 0;
if(signalmass == "400") cut = 0.;
if(signalmass == "500") cut = 0.;
if(signalmass == "750") cut = 400.;
if(signalmass == "1000") cut = 500.;
if(signalmass == "1250") cut = 800.;
if(signalmass == "1500") cut = 1000.;
if(signalmass == "1750") cut = 1250.;
if(signalmass == "2000") cut = 1500.;
if(signalmass == "2250") cut = 1500.;
if(signalmass == "2500") cut = 1500.;
if(signalmass == "3000") cut = 1500.;
cout<<"#####\t Event yields"<<endl;
cout<<"#####\t Data \t:\t"<< h_data->Integral(h_data->GetXaxis()->FindBin(cut), h_data->GetNbinsX()+1)<<endl;
cout<<"#####\t MC \t:\t"<< h_err->Integral(h_err->GetXaxis()->FindBin(cut), h_err->GetNbinsX()+1)<<endl;
cout<<"#####\t Signal "<<signalmass<<" :\t"<< h_signal_clone->Integral(h_signal_clone->GetXaxis()->FindBin(cut), h_signal_clone->GetNbinsX()+1)<<endl;
//calculate event selection efficiency
if( histname== "h_event_selection"){
for(int bin = 2; bin < h_data->GetNbinsX(); bin++){
double eff_rel = h_err->GetBinContent(bin-1) != 0 ? h_err->GetBinContent(bin)/h_err->GetBinContent(bin-1) : 0;
double eff_abs = h_err->GetBinContent(1) != 0 ? h_err->GetBinContent(bin)/h_err->GetBinContent(1) : 0;
double eff_rel_err = h_err->GetBinContent(bin-1) != 0 ? sqrt( eff_rel*(1- eff_rel)/ h_err->GetBinContent(bin)/h_err->GetBinContent(bin-1)) : 0;
double eff_abs_err = h_err->GetBinContent(1) != 0 ? sqrt( eff_abs*(1- eff_abs)/ h_err->GetBinContent(bin)/h_err->GetBinContent(bin-1)) : 0;
cout<<h_err->GetXaxis()->GetBinLabel(bin)<<endl;
std::cout<< eff_rel<<" "<<eff_rel_err<<std::endl;
std::cout<< eff_abs<<" "<<eff_abs_err<<std::endl;
}
}
///// Plotting
TCanvas *can = new TCanvas("can","", 600, 600);
can->cd();
if(logy) can->SetLogy();
h_stack->Draw("hist");
h_err->Draw("e2same");
h_data->Draw("epsame");
h_signal->Draw("histsame");
h_stack->SetMaximum(1.15*h_stack->GetMaximum());
if (logy && histname.find("event_selection") != std::string::npos) h_stack->SetMaximum(1e8*h_stack->GetMaximum());
if (logy && histname.find("event_selection") != std::string::npos) h_stack->SetMinimum(10);
//else if(logy) h_stack->SetMinimum(0.5);
h_stack->GetXaxis()->SetTitle(h_data_egamma->GetXaxis()->GetTitle());
h_stack->GetYaxis()->SetTitle("Events");
h_stack->GetYaxis()->SetTitleOffset(1.60);
if(histname.find("wmt") != std::string::npos)h_stack->GetXaxis()->SetRangeUser(0, 775);
else if(histname.find("ZmInv") != std::string::npos)h_stack->GetXaxis()->SetRangeUser(0, 3775);
else if(histname.find("ZmT") != std::string::npos)h_stack->GetXaxis()->SetRangeUser(0, 3575);
else if(histname.find("lep_pt") != std::string::npos)h_stack->GetXaxis()->SetRangeUser(0, 1575);
else if(histname.find("h_ZpInvM") != std::string::npos) h_stack->GetXaxis()->SetRangeUser(0, 3350);
TLegend *leg = new TLegend(0.55, 0.55, 0.75, 0.9);
leg->SetBorderSize(0);
leg->SetTextFont(42);
leg->SetTextSize(0.035);
leg->SetLineColor(1);
leg->SetLineStyle(1);
leg->SetLineWidth(1);
leg->SetFillColor(0);
leg->SetFillStyle(1001);
leg->SetHeader(" #sqrt{s} = 8 TeV, 1 fb^{-1}");
leg->AddEntry(h_data,"Data","p");
leg->AddEntry(h_ttbar,"t#bar{t}","f");
leg->AddEntry(h_singletop,"Single top","f");
leg->AddEntry(h_zjets,"Z","f");
leg->AddEntry(h_wjets,"W","f");
leg->AddEntry(h_drellyan,"Drell-Yan","f");
leg->AddEntry(h_db,"Diboson","f");
leg->AddEntry(h_err,"MC stat. uncertainty","f");
leg->AddEntry(h_signal,("Z'(" + signalmass + " GeV)#rightarrow t#bar{t} x 10^{5}").c_str(),"l");
leg->Draw();
std::string outfile = histname.substr(2, std::string::npos);
if(logy) can->SaveAs((outfile+"_log.pdf").c_str());
else can->SaveAs((outfile+".pdf").c_str());
}
void groupSamples(){
std::ifstream samples;
samples.open("samples.txt");
while(!samples.eof()){
TString sample;
float xsec;
float red_eff;
float sumw;
float nevt;
samples >> sample >> xsec >> red_eff >> sumw >> nevt;
nevt=1;
//sumw=1;
if(sample.Contains("WW") || sample.Contains("WZ") || sample.Contains("ZZ") ) db[sample] = xsec*nevt/(red_eff*sumw);
if(sample.Contains("DY") ) dy[sample] = xsec*nevt/(red_eff*sumw);
if(sample.Contains("Wenu") || sample.Contains("Wmunu") || sample.Contains("Wtaunu") ) w[sample] = xsec*nevt/(red_eff*sumw);
if(sample.Contains("Zee") || sample.Contains("Zmumu") || sample.Contains("Ztautau") ) z[sample] = xsec*nevt/(red_eff*sumw);
if(sample.Contains("stop") ) stop[sample] = xsec*nevt/(red_eff*sumw);
if(sample.Contains("ttbar") ) tt[sample] = xsec*nevt/(red_eff*sumw);
if(sample.Contains("ZPrime") ) signalmap[sample] = xsec*nevt/(red_eff*sumw);
}
return;
}
void makeGroupHist(){
//for(unsigned int i = 0; i < db.size(); i++){
int i = 0;
for(std::map<TString, float>::iterator it = db.begin(); it != db.end(); ++it){
TFile *f = TFile::Open(Form("hist-%s.root",(it->first).Data()));
TH1F *h = (TH1F*) f->Get(histname.c_str());
h->Rebin(rebin);
h->Scale(it->second*lumi);
//h->Scale(it->second*lumi/h->Integral(0, h->GetNbinsX()+1));
if(i==0) h_db = (TH1F*) h->Clone();
else h_db->Add(h);
i++;
}
i = 0;
for(std::map<TString, float>::iterator it = dy.begin(); it != dy.end(); ++it){
TFile *f = TFile::Open(Form("hist-%s.root",(it->first).Data()));
TH1F *h = (TH1F*) f->Get(histname.c_str());
h->Rebin(rebin);
h->Scale(it->second*lumi);
//h->Scale(it->second*lumi/h->Integral(0, h->GetNbinsX()+1));
if(i==0) h_drellyan = (TH1F*) h->Clone();
else h_drellyan->Add(h);
i++;
}
i = 0;
for(std::map<TString, float>::iterator it = w.begin(); it != w.end(); ++it){
TFile *f = TFile::Open(Form("hist-%s.root",(it->first).Data()));
TH1F *h = (TH1F*) f->Get(histname.c_str());
h->Rebin(rebin);
h->Scale(it->second*lumi);
//h->Scale(it->second*lumi/h->Integral(0, h->GetNbinsX()+1));
if(i==0) h_wjets = (TH1F*) h->Clone();
else h_wjets->Add(h);
i++;
}
i = 0;
for(std::map<TString, float>::iterator it = z.begin(); it != z.end(); ++it){
TFile *f = TFile::Open(Form("hist-%s.root",(it->first).Data()));
TH1F *h = (TH1F*) f->Get(histname.c_str());
h->Rebin(rebin);
h->Scale(it->second*lumi);
//h->Scale(it->second*lumi/h->Integral(0, h->GetNbinsX()+1));
if(i==0) h_zjets = (TH1F*) h->Clone();
else h_zjets->Add(h);
i++;
}
i = 0;
for(std::map<TString, float>::iterator it = stop.begin(); it != stop.end(); ++it){
TFile *f = TFile::Open(Form("hist-%s.root",(it->first).Data()));
TH1F *h = (TH1F*) f->Get(histname.c_str());
h->Rebin(rebin);
h->Scale(it->second*lumi);
//h->Scale(it->second*lumi/h->Integral(0, h->GetNbinsX()+1));
if(i==0) h_singletop = (TH1F*) h->Clone();
else h_singletop->Add(h);
i++;
}
i = 0;
for(std::map<TString, float>::iterator it = tt.begin(); it != tt.end(); ++it){
TFile *f = TFile::Open(Form("hist-%s.root",(it->first).Data()));
TH1F *h = (TH1F*) f->Get(histname.c_str());
h->Rebin(rebin);
h->Scale(it->second*lumi);
//h->Scale(it->second*lumi/h->Integral(0, h->GetNbinsX()+1));
if(i==0) h_ttbar = (TH1F*) h->Clone();
else h_ttbar->Add(h);
i++;
}
}
#包括“include/AtlasStyle.C”
#包括“include/AtlasLabels.C”
#包括“include/AtlasUtils.C”
void groupSamples（）；
void makeGroupHist（）；
地图数据库；
std：：mapdy；
std：：map w；
std：：mapz；
地图站；
std：：map-tt；
std：：map信号图；
TH1F*h_db；
TH1F*h_drellyan；
TH1F*h_wjets；
TH1F*Hzjets；
TH1F*h_单顶；
TH1F*h_ttbar；
std:：string histname=“h\u事件\u选择”；
浮动lumi=1000。；
int-rebin=1//20-ZmInv//4-wmt//1-事件选择
布尔逻辑=真；
std:：string signalmass=“400”；
无效HistPlotter（标准：：字符串质量=）{
如果（质量！=“”）信号质量=质量；
SetAtlasStyle（）；
TH1:：SetDefaultSumw2（真）；
格罗特->重置（）；
组样本（）；
makeGroupHist（）；
THStack*h_stack=新的THStack（“h_stack”，即“”）；
h_db->SetFillColor（kRed）；
h_drellyan->SetFillColor（绿色）；
h_wjets->SetFillColor（kMagenta）；
h_zjets->SetFillColor（kBlue）；
h_singletop->SetFillColor（kOrange）；
h_ttbar->SetFillColor（kCyan）；
h_堆栈->添加（h_db）；
h_stack->Add（h_drellyan）；
h_堆栈->添加（h_wjets）；
h_堆栈->添加（h_zjets）；
h_stack->Add（h_singletop）；
h_堆栈->添加（h_ttbar）；
TH1F*h_err=（TH1F*）h_db->Clone（）；
h_err->Add（h_drellyan）；
h_err->Add（h_wjets）；
h_err->Add（h_zjets）；
h_err->Add（h_singletop）；
h_err->Add（h_ttbar）；
h_err->SetFillStyle（3004）；
h_err->SetFillColor（kBlack）；
h_err->SetLineColor（0）；
h_err->SetMarkerStyle（1）；
TFile*f_sig=TFile:：Open（（（“hist ZPrime”+signalmass+“.root”）.c_str（））；
TH1F*h_信号=（TH1F*）f_信号->获取（histname.c_str（））；
h_信号->重新输入（重新输入）；
TH1F*h_信号\u克隆=（TH1F*）h_信号->克隆（）；
//重缩放信号
h_信号->比例（1e5*lumi*signalmap[（（“ZPrime”+signalmass.c_str（）]）；
h_信号->设置线型（7）；
h_信号->设置线宽（3）；
h_信号->设置线颜色（kPink-8）；
TFile*f_egama=TFile:：Open（“hist dataegama.root”）；
TFile*f_μon=TFile:：Open（“hist-DataMuons.root”）；
TH1F*h_data_egama=（TH1F*）f_egama->Get（histname.c_str（））；
TH1F*h_-data_-muon=（TH1F*）f_-muon->Get（histname.c_-str（））；
h_data_egamma->Rebin（Rebin）；
h_数据μon->Rebin（Rebin）；
TH1F*h_data=（TH1F*）h_data_egama->Clone（）；
h_数据->添加（h_数据μon）；
h_数据->设置标记化（1）；
h_数据->设置标记样式（20）；
h_数据->设置标记颜色（kBlack）；
///Chi2