Details
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Type:
Bug
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Status: Closed (View Workflow)
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Priority:
Medium
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Resolution: Fixed
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Affects Version/s: 6.20/04
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Labels:None
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Environment:
Fedora 31
gcc 9.3.1
clang 9.0.1
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Development:
Description
This works as expected:
#include <TH1F.h>
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class MyTH1F : public TH1F |
{
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public: |
using TH1F::TH1F;
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};
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int main() |
{
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MyTH1F h("name", "title", 100, 0, 100); |
}
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if I remove the using directive I get:
a.cpp:11:40: error: no matching function for call to 'MyTH1F::MyTH1F(const char [5], const char [6], int, int, int)' |
11 | MyTH1F h("name", "title", 100, 0, 100); |
| ^
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a.cpp:3:7: note: candidate: 'MyTH1F::MyTH1F()' |
3 | class MyTH1F : public TH1F |
| ^~~~~~
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a.cpp:3:7: note: candidate expects 0 arguments, 5 provided |
a.cpp:3:7: note: candidate: 'MyTH1F::MyTH1F(const MyTH1F&)' |
a.cpp:3:7: note: candidate expects 1 argument, 5 provided |
a.cpp:3:7: note: candidate: 'MyTH1F::MyTH1F(MyTH1F&&)' |
a.cpp:3:7: note: candidate expects 1 argument, 5 provided |
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as expected.
The problem is if I do this:
import ROOT |
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ROOT.gInterpreter.Declare(
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""" |
class MyTH1F : public TH1F |
{
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public: |
using TH1F::TH1F;
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};
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""") |
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h = ROOT.MyTH1F("name", "title", 100, 0, 100) |
I get the same error as if the using directive were not present
TypeError: none of the 3 overloaded methods succeeded. Full details: |
MyTH1F::MyTH1F() =>
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takes at most 0 arguments (5 given) |
MyTH1F::MyTH1F(const MyTH1F&) => |
takes at most 1 arguments (5 given) |
MyTH1F::MyTH1F(MyTH1F&&) =>
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takes at most 1 arguments (5 given) |