这是用llvm-g ++编译得很好的代码,但在OSX Mavericks上使用clang ++失败了。
ifs.open(original_filename.c_str(), ios::binary);
istream_iterator<char> begin(ifs), end;
vector<size_t> positions;
string prefix = home + "/Apps/" + bundle;
cout << " * Prefix: " << prefix << endl;
string pattern = string(BUILD_USER_HOME_DIR);
cout << " * Searching for pattern: " << pattern << endl;
while (ifs.good()) {
begin = search(begin, end, pattern.begin(), pattern.end());
if (begin != end) {
size_t global = (size_t)ifs.tellg() - pattern.length();
positions.push_back(global);
}
}
ifs.clear();
ifs.seekg(0, ios::beg);
使用clang ++时,结尾为:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/c++/v1/algorithm:1328:12: error: no matching function for call to '__search'
return _VSTD::__search<typename add_lvalue_reference<_BinaryPredicate>::type>
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
答案 0 :(得分:1)
此代码无效:std::search()
要求使用ForwardIterators识别两个序列(参见25.2.13 [alg.search]):
template<class ForwardIterator1, class ForwardIterator2>
ForwardIterator1
search(ForwardIterator1 first1, ForwardIterator1 last1,
ForwardIterator2 first2, ForwardIterator2 last2);
但是,std::istream_iterator<std::size_t>
是一个InputIterator。