MPI 4.1 - Add MPI_Delete_error_class, MPI_Delete_error_code, MPI_Delete_error_string

[hppritcha]

see mpi-forum/mpi-issues#283
item 21 in B 1.2 of MPI 4.1 standard

[naughtont3]

Working on adding version voted in for MPI-4.1 is slightly different:

int MPI_Remove_error_class(int errorclass)
int MPI_Remove_error_code(int errorcode)
int MPI_Remove_error_string(int errorcode)

Started changes to ompi-tests-public:

• https://github.com/naughtont3/ompi-tests-public/tree/envmgmt-tests/environ-mgmt

[hppritcha]

@naughtont3 any updates on adding this functionlity?

[naughtont3]

@naughtont3 any updates on adding this functionlity?

Slipped my todo with summer stuff. I'll dig out branch and get this finished off and update notes when ready.

[naughtont3]

Added changes for C functions, still need to add the Fortran bits.

Pull-request:

• add MPI_Remove_error_{string,code,class} C fns #13384
• TODO: add Fortran bits

Tests pull-request:

• envmgmt: error class/code/string test ompi-tests-public#35

    cd environ-mgmt/
    ./autogen.sh && ./configure && make
    mpirun -np 1 ./src/test_add_del_err_codes
  

[naughtont3]

Added Fortran bindings (need testing/review).