Segfault trying to work with shared_ptr in forward declared class
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I'm having an odd issue where when I forward declare a class and run it, it calls the constructor successfully but when it tries to work with a shared_ptr, it segfaults within the __exchange_and_add on return __atomic_fetch_add forward declared class constructor.
The class we're trying to use is located in a linked shared object.
For example:
class MyForwardDeclaredClass
public:
MyForwardDeclaredClass();
namespace MyNamespace
class MyClass
public:
MyClass() _myForwardDeclaredClass.reset(new MyForwardDeclaredClass());
std::shared_ptr<MyForwardDeclaredClass> _myForwardDeclaredClass;
But if I do this:
#include <MyForwardDeclaredClass.hpp>
namespace MyNamespace
class MyClass
public:
MyClass() _myForwardDeclaredClass.reset(new MyForwardDeclaredClass());
std::shared_ptr<MyForwardDeclaredClass> _myForwardDeclaredClass;
It works properly.
c++ shared-ptr forward-declaration
asked Nov 13 '18 at 21:10
Moe BatainehMoe Bataineh
642627
add a comment |
0
I'm having an odd issue where when I forward declare a class and run it, it calls the constructor successfully but when it tries to work with a shared_ptr, it segfaults within the __exchange_and_add on return __atomic_fetch_add forward declared class constructor.
The class we're trying to use is located in a linked shared object.
For example:
class MyForwardDeclaredClass
public:
MyForwardDeclaredClass();
namespace MyNamespace
class MyClass
public:
MyClass() _myForwardDeclaredClass.reset(new MyForwardDeclaredClass());
std::shared_ptr<MyForwardDeclaredClass> _myForwardDeclaredClass;
But if I do this:
#include <MyForwardDeclaredClass.hpp>
namespace MyNamespace
class MyClass
public:
MyClass() _myForwardDeclaredClass.reset(new MyForwardDeclaredClass());
std::shared_ptr<MyForwardDeclaredClass> _myForwardDeclaredClass;
It works properly.
c++ shared-ptr forward-declaration
asked Nov 13 '18 at 21:10
Moe BatainehMoe Bataineh
642627
The code you show is not obviously wrong. Your problem must be elsewhere. Side note:class X public: X(); ;is not a forward declaration ofX; it is a full definition. If that sequence of tokens is not exactly the same that is also in your header file (whose content you did not show), then you do something very wrong.
– j6t
Nov 13 '18 at 21:46
@j6t, It's exactly the same! I hit the constructor successfully. I guess I used the term 'forward declaration' incorrectly and it is as you said a 'full definition'.
– Moe Bataineh
Nov 13 '18 at 22:05
1
Please post real code
– M.M
Nov 13 '18 at 23:48
add a comment |
0
0
0
I'm having an odd issue where when I forward declare a class and run it, it calls the constructor successfully but when it tries to work with a shared_ptr, it segfaults within the __exchange_and_add on return __atomic_fetch_add forward declared class constructor.
The class we're trying to use is located in a linked shared object.
For example:
class MyForwardDeclaredClass
public:
MyForwardDeclaredClass();
namespace MyNamespace
class MyClass
public:
MyClass() _myForwardDeclaredClass.reset(new MyForwardDeclaredClass());
std::shared_ptr<MyForwardDeclaredClass> _myForwardDeclaredClass;
But if I do this:
#include <MyForwardDeclaredClass.hpp>
namespace MyNamespace
class MyClass
public:
MyClass() _myForwardDeclaredClass.reset(new MyForwardDeclaredClass());
std::shared_ptr<MyForwardDeclaredClass> _myForwardDeclaredClass;
It works properly.
c++ shared-ptr forward-declaration
asked Nov 13 '18 at 21:10
Moe BatainehMoe Bataineh
642627
I'm having an odd issue where when I forward declare a class and run it, it calls the constructor successfully but when it tries to work with a shared_ptr, it segfaults within the __exchange_and_add on return __atomic_fetch_add forward declared class constructor.
The class we're trying to use is located in a linked shared object.
For example:
class MyForwardDeclaredClass
public:
MyForwardDeclaredClass();
namespace MyNamespace
class MyClass
public:
MyClass() _myForwardDeclaredClass.reset(new MyForwardDeclaredClass());
std::shared_ptr<MyForwardDeclaredClass> _myForwardDeclaredClass;
But if I do this:
#include <MyForwardDeclaredClass.hpp>
namespace MyNamespace
class MyClass
public:
MyClass() _myForwardDeclaredClass.reset(new MyForwardDeclaredClass());
std::shared_ptr<MyForwardDeclaredClass> _myForwardDeclaredClass;
It works properly.
c++ shared-ptr forward-declaration
c++ shared-ptr forward-declaration
asked Nov 13 '18 at 21:10
Moe BatainehMoe Bataineh
642627
asked Nov 13 '18 at 21:10
Moe BatainehMoe Bataineh
642627
asked Nov 13 '18 at 21:10
Moe BatainehMoe Bataineh
642627
asked Nov 13 '18 at 21:10
Moe BatainehMoe Bataineh
642627
asked Nov 13 '18 at 21:10
Moe BatainehMoe Bataineh
642627
642627
The code you show is not obviously wrong. Your problem must be elsewhere. Side note:class X public: X(); ;is not a forward declaration ofX; it is a full definition. If that sequence of tokens is not exactly the same that is also in your header file (whose content you did not show), then you do something very wrong.
– j6t
Nov 13 '18 at 21:46
@j6t, It's exactly the same! I hit the constructor successfully. I guess I used the term 'forward declaration' incorrectly and it is as you said a 'full definition'.
– Moe Bataineh
Nov 13 '18 at 22:05
1
Please post real code
– M.M
Nov 13 '18 at 23:48
add a comment |
The code you show is not obviously wrong. Your problem must be elsewhere. Side note:class X public: X(); ;is not a forward declaration ofX; it is a full definition. If that sequence of tokens is not exactly the same that is also in your header file (whose content you did not show), then you do something very wrong.
– j6t
Nov 13 '18 at 21:46
@j6t, It's exactly the same! I hit the constructor successfully. I guess I used the term 'forward declaration' incorrectly and it is as you said a 'full definition'.
– Moe Bataineh
Nov 13 '18 at 22:05
1
Please post real code
– M.M
Nov 13 '18 at 23:48
The code you show is not obviously wrong. Your problem must be elsewhere. Side note:
class X public: X(); ; is not a forward declaration of X; it is a full definition. If that sequence of tokens is not exactly the same that is also in your header file (whose content you did not show), then you do something very wrong.– j6t
Nov 13 '18 at 21:46
The code you show is not obviously wrong. Your problem must be elsewhere. Side note:
class X public: X(); ; is not a forward declaration of X; it is a full definition. If that sequence of tokens is not exactly the same that is also in your header file (whose content you did not show), then you do something very wrong.– j6t
Nov 13 '18 at 21:46
@j6t, It's exactly the same! I hit the constructor successfully. I guess I used the term 'forward declaration' incorrectly and it is as you said a 'full definition'.
– Moe Bataineh
Nov 13 '18 at 22:05
@j6t, It's exactly the same! I hit the constructor successfully. I guess I used the term 'forward declaration' incorrectly and it is as you said a 'full definition'.
– Moe Bataineh
Nov 13 '18 at 22:05
1
1
Please post real code
– M.M
Nov 13 '18 at 23:48
Please post real code
– M.M
Nov 13 '18 at 23:48
add a comment |
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The code you show is not obviously wrong. Your problem must be elsewhere. Side note:
class X public: X(); ;is not a forward declaration ofX; it is a full definition. If that sequence of tokens is not exactly the same that is also in your header file (whose content you did not show), then you do something very wrong.– j6t
Nov 13 '18 at 21:46
@j6t, It's exactly the same! I hit the constructor successfully. I guess I used the term 'forward declaration' incorrectly and it is as you said a 'full definition'.
– Moe Bataineh
Nov 13 '18 at 22:05
1
Please post real code
– M.M
Nov 13 '18 at 23:48