Question

复制了C ++代码

#include <TMB.hpp>                                // Links in the TMB libraries

template<class Type>
Type objective_function<Type>::operator() ()
{
    DATA_VECTOR(x);                                 // Data vector transmitted from R
    PARAMETER(mu);                                  // Parameter value transmitted from R
    PARAMETER(sigma);                               //                 

    Type f;                                         // Declare the "objective function" (neg. log. likelihood)
    f = -sum(dnorm(x,mu,sigma,true));               // Use R-style call to normal density

    return f;
}

并将其保存为tutorial.cpp。然后我尝试按照说明编译它并得到：

> compile("tutorial.cpp")
Error in compile("tutorial.cpp") : Compilation failed
In addition: Warning messages:
1: In readLines(file) : incomplete final line found on 'tutorial.cpp'
2: running command 'make -f ".../R/R-33~1.2/etc/x64/Makeconf" -f "C:/PROGRA~1/R/R-33~1.2/share/make/winshlib.mk" -f "...\AppData\Local\Temp\RtmpqgV7xA\file2d987ade32f3" SHLIB_LDFLAGS='$(SHLIB_CXXLDFLAGS)' SHLIB_LD='$(SHLIB_CXXLD)' SHLIB="tutorial.dll" WIN=64 TCLBIN=64 OBJECTS="tutorial.o"' had status 127

此外，在RStudio编辑器窗口中，我可以在行Type objective_function<...旁边看到一个叉号，并将鼠标悬停在错误上：

Variable templates are a C++1y extension
expected ';' at end of declaration
expected unqualified-id

我应该怎么做才能修复它以便教程功能编译？

会话信息：

R version 3.3.2 (2016-10-31)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] TMB_1.7.8

loaded via a namespace (and not attached):
[1] Matrix_1.2-8     tools_3.3.2      grid_3.3.2    lattice_0.20-34

Answer 1

我现在已经解决了我的问题，分为两部分。第一个是没有在Windows中安装Rtools。这是mentioned here：

在从CRAN安装TMB之后，为什么我不能在Windows中构建和运行模型？ Windows上的TMB需要Rtools。 PATH环境变量应该指向Rtools＆＃39; make＆＃39;和＆＃39; gcc＆＃39;，并且没有其他任何＆＃39;制作＆＃39;或者＆＃39; gcc＆＃39;。

第二个问题是在安装Rtools之后我仍然无法找到编译，尽管验证我可以在these instructions之后的命令行中使用它：

In some cases this PATH might be C:\RBuildTools... Further, we can check if g++ can be really called from R. For example, we can see the version of gcc in R as follows.

> system('g++ -v')
Using built-in specs.
COLLECT_GCC=c:\Rtools\GCC-46~1.3\bin\G__~1.EXE
COLLECT_LTO_WRAPPER=c:/rtools/gcc-46~1.3/bin/../libexec/gcc/i686-w64-mingw32/4.6.3/lto-wrapper.exe
Target: i686-w64-mingw32
Configured with: /data/gannet/ripley/Sources/mingw-test3/src/gcc/configure --host=i686-w64-mingw32 --build=x86_64-linux-gnu --target=i686-w64-mingw32 --with-sysroot=/data/gannet/ripley/Sources/mingw-test3/mingw32mingw32/mingw32 --prefix=/data/gannet/ripley/Sources/mingw-test3/mingw32mingw32/mingw32 --with-gmp=/data/gannet/ripley/Sources/mingw-test3/mingw32mingw32/prereq_install --with-mpfr=/data/gannet/ripley/Sources/mingw-test3/mingw32mingw32/prereq_install --with-mpc=/data/gannet/ripley/Sources/mingw-test3/mingw32mingw32/prereq_install --disable-shared --enable-static --enable-targets=all --enable-languages=c,c++,fortran --enable-libgomp --enable-sjlj-exceptions --enable-fully-dynamic-string --disable-nls --disable-werror --enable-checking=release --disable-win32-registry --disable-rpath --disable-werror CFLAGS='-O2 -mtune=core2 -fomit-frame-pointer' LDFLAGS=
Thread model: win32
gcc version 4.6.3 20111208 (prerelease) (GCC)

> system('where make')
c:\Rtools\bin\make.exe

我收到的错误是：

> compile('tutorial.cpp')
c:/Rtools/mingw_64/bin/g++  
...
c:/Rtools/mingw_64/bin/g++: not found

这表明该路径在某处被硬编码。按照使用alternative gcc compilers的说明操作，我发现该路径是在位于Makeconf

的"C:\Program Files\R\R-3.3.2\etc\x64\Makeconf"文件中进行了硬编码的

然后我注释掉旧线并用正确的路径替换它：

# BINPREF ?= c:/Rtools/mingw_64/bin/
BINPREF ?= C:/RBuildTools/3.4/mingw_64/bin/

此后编译无需重启即可运行。

TMB教程中的编译错误是什么？

1 个答案: