作者ephesians (ephesians)
看板LinuxDev
标题[问题] 请问statement is unreachable是什麽?
时间Tue May 8 20:07:58 2007
我在HP丛集电脑写C++平行程式, 用mpiCC编译,
我看了mpiCC script的内容是判断该用g++或是gcc编译. 这不是重点.
程式包含了/opt/hpmpi/include/mpiCC.h档头,
内容是帮我把/opt/hpmpi/include/mpiCC/*.h include进来. 这也不是重点.
这样编译:
mpiCC -o mpi_test main.cpp
它提出这样的讯息:
"/opt/hpmpi/include/mpiCC/comm_inln.h", line 660: warning: statement is
unreachable
if (MPI_NULL_COPY_FN != 0) {
^
"/opt/hpmpi/include/mpiCC/comm_inln.h", line 689: warning: statement is
unreachable
if (MPI_NULL_DELETE_FN != 0) {
^
main.o(.text+0x1c15): In function `MPI::Comm::Free( (void))':
: undefined reference to `MPI::Comm::mpi_comm_map(void)'
[blah, blah, and blah]
statement is unreachable是什麽意思?
它是标头档冒出问题,我该怎麽解决?
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◆ From: 218.160.108.147
※ 编辑: ephesians 来自: 218.160.108.147 (05/08 20:10)
※ 编辑: ephesians 来自: 218.160.108.147 (05/08 20:12)
1F：推 CriLit:这个判断不会做到.. 05/09 12:37