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Created by frey_m@frey_mMaintainer

compiler warnings due to memcpy

With gcc/8.3.0 and later we get compiler warnings due to memcpy in IPPL.

/users/freym/git/opal/src/ippl/src/Index/IndexInlines.h:359:1:   required from here
/users/freym/git/opal/src/ippl/src/PETE/PETE.h:378:11: warning: 'void* memcpy(void*, const void*, size_t)' writing to an object of non-trivially copyable type 'struct PETE_TBTree<FnMax, Index::cursor, PETE_Scalar<double> >'; use copy-assignment or copy-initialization instead [-Wclass-memaccess]
     memcpy(this,&t,sizeof(*this));
     ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/users/freym/git/opal/src/ippl/src/PETE/PETE.h:343:8: note: 'struct PETE_TBTree<FnMax, Index::cursor, PETE_Scalar<double> >' declared here
 struct PETE_TBTree :
        ^~~~~~~~~~~
/users/freym/git/opal/src/ippl/src/PETE/PETE.h: In instantiation of 'PETE_TBTree<Value_t, Left_t, Right_t>::PETE_TBTree(const PETE_TBTree<Value_t, Left_t, Right_t>&) [with Value_t = FnMax; Left_t = PETE_Scalar<double>; Right_t = Index::cursor]':
/users/freym/git/opal/src/ippl/src/Index/IndexInlines.h:359:1:   required from here
/users/freym/git/opal/src/ippl/src/PETE/PETE.h:378:11: warning: 'void* memcpy(void*, const void*, size_t)' writing to an object of non-trivially copyable type 'struct PETE_TBTree<FnMax, PETE_Scalar<double>, Index::cursor>'; use copy-assignment or copy-initialization instead [-Wclass-memaccess]
     memcpy(this,&t,sizeof(*this));
     ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/users/freym/git/opal/src/ippl/src/PETE/PETE.h:343:8: note: 'struct PETE_TBTree<FnMax, PETE_Scalar<double>, Index::cursor>' declared here
 struct PETE_TBTree :
        ^~~~~~~~~~~
/users/freym/git/opal/src/ippl/src/PETE/PETE.h: In instantiation of 'PETE_TBTree<Value_t, Left_t, Right_t>::PETE_TBTree(const PETE_TBTree<Value_t, Left_t, Right_t>&) [with Value_t = FnMin; Left_t = Index::cursor; Right_t = PETE_Scalar<double>]':
/users/freym/git/opal/src/ippl/src/Index/IndexInlines.h:360:1:   required from here
/users/freym/git/opal/src/ippl/src/PETE/PETE.h:378:11: warning: 'void* memcpy(void*, const void*, size_t)' writing to an object of non-trivially copyable type 'struct PETE_TBTree<FnMin, Index::cursor, PETE_Scalar<double> >'; use copy-assignment or copy-initialization instead [-Wclass-memaccess]
     memcpy(this,&t,sizeof(*this));
     ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/users/freym/git/opal/src/ippl/src/PETE/PETE.h:343:8: note: 'struct PETE_TBTree<FnMin, Index::cursor, PETE_Scalar<double> >' declared here
 struct PETE_TBTree :
        ^~~~~~~~~~~
/users/freym/git/opal/src/ippl/src/PETE/PETE.h: In instantiation of 'PETE_TBTree<Value_t, Left_t, Right_t>::PETE_TBTree(const PETE_TBTree<Value_t, Left_t, Right_t>&) [with Value_t = FnMin; Left_t = PETE_Scalar<double>; Right_t = Index::cursor]':
/users/freym/git/opal/src/ippl/src/Index/IndexInlines.h:360:1:   required from here
/users/freym/git/opal/src/ippl/src/PETE/PETE.h:378:11: warning: 'void* memcpy(void*, const void*, size_t)' writing to an object of non-trivially copyable type 'struct PETE_TBTree<FnMin, PETE_Scalar<double>, Index::cursor>'; use copy-assignment or copy-initialization instead [-Wclass-memaccess]
     memcpy(this,&t,sizeof(*this));
     ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/users/freym/git/opal/src/ippl/src/PETE/PETE.h:343:8: note: 'struct PETE_TBTree<FnMin, PETE_Scalar<double>, Index::cursor>' declared here
 struct PETE_TBTree :
        ^~~~~~~~~~~
/users/freym/git/opal/src/ippl/src/PETE/PETE.h: In instantiation of 'PETE_TBTree<Value_t, Left_t, Right_t>::PETE_TBTree(const PETE_TBTree<Value_t, Left_t, Right_t>&) [with Value_t = OpAdd; Left_t = Index::cursor; Right_t = PETE_Scalar<float>]':
/users/freym/git/opal/src/ippl/src/Index/IndexInlines.h:388:1:   required from here
/users/freym/git/opal/src/ippl/src/PETE/PETE.h:378:11: warning: 'void* memcpy(void*, const void*, size_t)' writing to an object of non-trivially copyable type 'struct PETE_TBTree<OpAdd, Index::cursor, PETE_Scalar<float> >'; use copy-assignment or copy-initialization instead [-Wclass-memaccess]
     memcpy(this,&t,sizeof(*this));
     ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
/users/freym/git/opal/src/ippl/src/PETE/PETE.h:343:8: note: 'struct PETE_TBTree<OpAdd, Index::cursor, PETE_Scalar<float> >' declared here
 struct PETE_TBTree :
        ^~~~~~~~~~~
/users/freym/git/opal/src/ippl/src/PETE/PETE.h: In instantiation of 'PETE_TBTree<Value_t, Left_t, Right_t>::PETE_TBTree(const PETE_TBTree<Value_t, Left_t, Right_t>&) [with Value_t = OpAdd; Left_t = PETE_Scalar<float>; Right_t = Index::cursor]':
/users/freym/git/opal/src/ippl/src/Index/IndexInlines.h:388:1:   required from here
/users/freym/git/opal/src/ippl/src/PETE/PETE.h:378:11: warning: 'void* memcpy(void*, const void*, size_t)' writing to an object of non-trivially copyable type 'struct PETE_TBTree<OpAdd, PETE_Scalar<float>, Index::cursor>'; use copy-assignment or copy-initialization instead [-Wclass-memaccess]
     memcpy(this,&t,sizeof(*this));