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Description
Approx 10 years ago I create file with canvas from TLegend docu.
Now it is impossible to correctly read produced canvas and draw TF1 object in it:
root https://root.cern/js/files/legends.root -e "legends->Draw()"
Command produce a lot of error output like:
Error in <TClingCallFunc::make_wrapper>: Failed to compile
==== SOURCE BEGIN ====
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wformat-security"
__attribute__((used)) __attribute__((annotate("__cling__ptrcheck(off)")))
extern "C" void __cf_1(void* obj, int nargs, void** args, void* ret)
{
if (ret) {
new (ret) (double) (((double (&)(double *))TFormula____id1925463321337447592)(*(double**)args[0]));
return;
}
else {
(void)(((double (&)(double *))TFormula____id1925463321337447592)(*(double**)args[0]));
return;
}
}
#pragma clang diagnostic pop
==== SOURCE END ====
Error in <prepareFuncPtr>: Compiled function pointer is null
Error in <TFormula::InputFormulaIntoCling>: Error compiling formula expression in Cling
Error in <TFormula::ProcessFormula>: Formula "1000*TMath::Abs(sin(x)/x)" is invalid !
Error in <TFormula::Eval>: Formula is invalid and not ready to execute
TMath::Abs is unknown.
Error in <TFormula::Eval>: Formula is invalid and not ready to execute
TMath::Abs is unknown.
Error in <TFormula::Eval>: Formula is invalid and not ready to execute
TMath::Abs is unknown.
Error in <TFormula::Eval>: Formula is invalid and not ready to execute
TMath::Abs is unknown.
Error in <TFormula::Eval>: Formula is invalid and not ready to execute
TMath::Abs is unknown.
Producing segfault when trying to quit ROOT session.