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私はOSX上でkenlmコンパイルしたいが、私はエラーを取得しています:コンパイラは-std = C++ 11で起動されますが、std :: moveは未定義なのはなぜですか?
error: no member named 'move' in namespace 'std'
他のポストは
'-std=c++11'
でコンパイルすることをお勧めしますが、私はまだ同じエラーを取得しています。どうすれば解決できますか?
g++ --version
出力は:
Configured with: --prefix=/Library/Developer/CommandLineTools/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 8.1.0 (clang-802.0.38)
Target: x86_64-apple-darwin16.5.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin
kenlmのビルドスクリプトは次のようになります。
from setuptools import setup, Extension
import glob
import platform
import os
#Does gcc compile with this header and library?
def compile_test(header, library):
dummy_path = os.path.join(os.path.dirname(__file__), "dummy")
command = "bash -c \"g++ -include " + header + " -l" + library + " -x c++ - <<<'int main() {}' -o " + dummy_path + " >/dev/null 2>/dev/null && rm " + dummy_path + " 2>/dev/null\""
return os.system(command) == 0
...
#We don't need -std=c++11 but python seems to be compiled with it now. https://github.com/kpu/kenlm/issues/86
ARGS = ['-O3', '-DNDEBUG', '-DKENLM_MAX_ORDER=6', '-std=c++11']
ext_modules = [
Extension(name='kenlm',
sources=FILES + ['python/kenlm.cpp'],
language='C++',
include_dirs=['.'],
libraries=LIBS,
extra_compile_args=ARGS)
]
...
std::move
使用してコード:
#ifndef UTIL_FILE_STREAM_H
#define UTIL_FILE_STREAM_H
#include <utility>
#include "util/fake_ostream.hh"
#include "util/file.hh"
#include "util/scoped.hh"
#include <cassert>
#include <cstring>
#include <stdint.h>
namespace util {
class FileStream : public FakeOStream<FileStream> {
public:
explicit FileStream(int out = -1, std::size_t buffer_size = 8192)
: buf_(util::MallocOrThrow(std::max<std::size_t>(buffer_size, kToStringMaxBytes))),
current_(static_cast<char*>(buf_.get())),
end_(current_ + std::max<std::size_t>(buffer_size, kToStringMaxBytes)),
fd_(out) {}
#if __cplusplus >= 201103L
FileStream(FileStream &&from) noexcept : buf_(std::move(from.buf_)), current_(from.current_), end_(from.end_), fd_(from.fd_) {
from.end_ = reinterpret_cast<char*>(from.buf_.get());
from.current_ = from.end_;
}
#endif
'g ++ --version'? – YSC
が私の投稿に追加されました – bear
#include –