}
int PMPI_Error_string(int errorcode, char* string, int* resultlen){
- static const char *smpi_error_string[] = {
- FOREACH_ERROR(GENERATE_STRING)
- };
- *resultlen = strlen(smpi_error_string[errorcode]);
- strncpy(string, smpi_error_string[errorcode], *resultlen);
- return MPI_SUCCESS;
+ if (errorcode<0 || string ==nullptr){
+ return MPI_ERR_ARG;
+ } else {
+ static const char *smpi_error_string[] = {
+ FOREACH_ERROR(GENERATE_STRING)
+ };
+ *resultlen = strlen(smpi_error_string[errorcode]);
+ strncpy(string, smpi_error_string[errorcode], *resultlen);
+ return MPI_SUCCESS;
+ }
}
int PMPI_Keyval_create(MPI_Copy_function* copy_fn, MPI_Delete_function* delete_fn, int* keyval, void* extra_state) {