增強錯誤的'只讀位置的分配'和'沒有匹配函數的調用'（新安裝）

Question

我只是嘗試了Boost庫並遇到了錯誤。

的代碼很簡單：

#include <string> 
#include <iostream> 
#include "/usr/include/boost/algorithm/string.hpp"; 
#include "/usr/include/boost/algorithm/string/erase.hpp"; 

using namespace std; 
using namespace boost; 
using namespace boost::algorithm; 
using namespace boost::string; 


int main() 
{ 
    erase_all(" ","the quick brown fox"); 
    return 1; 
} 

當我編譯它，我得到的文本的一個巨大的塊，下面兩行我覺得非常有用：

/usr/include/boost/algorithm/string/detail/find_format_all.hpp:249: error: no matching function for call to âerase(const char [2], const char*&, const char*)â 

和

/usr/include/boost/algorithm/string/detail/replace_storage.hpp:98: error: assignment of read-only location 

我試過了Boost網站的一個簡單的Boost例子，它可以工作，但是儘管有很多的小竅門和s搜索我無法弄清楚爲什麼這個erase_all函數不起作用。 我有一種感覺，這是一個缺少包括，但我不能確定哪個。

任何人都可以對此有所瞭解嗎？

完整的錯誤輸出是：

test1.cpp:3:51: warning: extra tokens at end of #include directive 
/usr/include/boost/algorithm/string/detail/find_format_all.hpp: In function âvoid boost::algorithm::detail::find_format_all_impl2(InputT&, FinderT, FormatterT, FindResultT, FormatResultT) [with InputT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>, FindResultT = boost::iterator_range<const char*>, FormatResultT = boost::algorithm::detail::empty_container<char>]â: 
/usr/include/boost/algorithm/string/detail/find_format_all.hpp:179: instantiated from âvoid boost::algorithm::detail::find_format_all_impl(InputT&, FinderT, FormatterT, FindResultT) [with InputT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>, FindResultT = boost::iterator_range<const char*>]â 
/usr/include/boost/algorithm/string/find_format.hpp:247: instantiated from âvoid boost::algorithm::find_format_all(SequenceT&, FinderT, FormatterT) [with SequenceT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>]â 
/usr/include/boost/algorithm/string/erase.hpp:588: instantiated from âvoid boost::algorithm::erase_all(SequenceT&, const RangeT&) [with SequenceT = const char [2], RangeT = char [20]]â 
test1.cpp:12: instantiated from here 
/usr/include/boost/algorithm/string/detail/find_format_all.hpp:249: error: no matching function for call to âerase(const char [2], const char*&, const char*)â 
/usr/include/boost/algorithm/string/detail/find_format_all.hpp:179: instantiated from âvoid boost::algorithm::detail::find_format_all_impl(InputT&, FinderT, FormatterT, FindResultT) [with InputT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>, FindResultT = boost::iterator_range<const char*>]â 
/usr/include/boost/algorithm/string/find_format.hpp:247: instantiated from âvoid boost::algorithm::find_format_all(SequenceT&, FinderT, FormatterT) [with SequenceT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>]â 
/usr/include/boost/algorithm/string/erase.hpp:588: instantiated from âvoid boost::algorithm::erase_all(SequenceT&, const RangeT&) [with SequenceT = const char [2], RangeT = char [20]]â 
test1.cpp:12: instantiated from here 
/usr/include/boost/algorithm/string/detail/find_format_all.hpp:254: error: no matching function for call to âinsert(const char [2], const char*, std::_Deque_iterator<char, char&, char*>, std::_Deque_iterator<char, char&, char*>)â 
/usr/include/boost/algorithm/string/detail/replace_storage.hpp: In member function âForwardIteratorT boost::algorithm::detail::process_segment_helper<HasStableIterators>::operator()(StorageT&, InputT&, ForwardIteratorT, ForwardIteratorT, ForwardIteratorT) [with StorageT = std::deque<char, std::allocator<char> >, InputT = const char [2], ForwardIteratorT = const char*, bool HasStableIterators = false]â: 
/usr/include/boost/algorithm/string/detail/replace_storage.hpp:150: instantiated from âForwardIteratorT boost::algorithm::detail::process_segment(StorageT&, InputT&, ForwardIteratorT, ForwardIteratorT, ForwardIteratorT) [with StorageT = std::deque<char, std::allocator<char> >, InputT = const char [2], ForwardIteratorT = const char*]â 
/usr/include/boost/algorithm/string/detail/find_format_all.hpp:221: instantiated from âvoid boost::algorithm::detail::find_format_all_impl2(InputT&, FinderT, FormatterT, FindResultT, FormatResultT) [with InputT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>, FindResultT = boost::iterator_range<const char*>, FormatResultT = boost::algorithm::detail::empty_container<char>]â 
/usr/include/boost/algorithm/string/detail/find_format_all.hpp:179: instantiated from âvoid boost::algorithm::detail::find_format_all_impl(InputT&, FinderT, FormatterT, FindResultT) [with InputT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>, FindResultT = boost::iterator_range<const char*>]â 
/usr/include/boost/algorithm/string/find_format.hpp:247: instantiated from âvoid boost::algorithm::find_format_all(SequenceT&, FinderT, FormatterT) [with SequenceT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>]â 
/usr/include/boost/algorithm/string/erase.hpp:588: instantiated from âvoid boost::algorithm::erase_all(SequenceT&, const RangeT&) [with SequenceT = const char [2], RangeT = char [20]]â 
test1.cpp:12: instantiated from here 
/usr/include/boost/algorithm/string/detail/replace_storage.hpp:98: error: assignment of read-only location 
/usr/include/boost/algorithm/string/detail/replace_storage.hpp: In function âOutputIteratorT boost::algorithm::detail::move_from_storage(StorageT&, OutputIteratorT, OutputIteratorT) [with StorageT = std::deque<char, std::allocator<char> >, OutputIteratorT = const char*]â: 
/usr/include/boost/algorithm/string/detail/replace_storage.hpp:70: instantiated from âForwardIteratorT boost::algorithm::detail::process_segment_helper<HasStableIterators>::operator()(StorageT&, InputT&, ForwardIteratorT, ForwardIteratorT, ForwardIteratorT) [with StorageT = std::deque<char, std::allocator<char> >, InputT = const char [2], ForwardIteratorT = const char*, bool HasStableIterators = false]â 
/usr/include/boost/algorithm/string/detail/replace_storage.hpp:150: instantiated from âForwardIteratorT boost::algorithm::detail::process_segment(StorageT&, InputT&, ForwardIteratorT, ForwardIteratorT, ForwardIteratorT) [with StorageT = std::deque<char, std::allocator<char> >, InputT = const char [2], ForwardIteratorT = const char*]â 
/usr/include/boost/algorithm/string/detail/find_format_all.hpp:221: instantiated from âvoid boost::algorithm::detail::find_format_all_impl2(InputT&, FinderT, FormatterT, FindResultT, FormatResultT) [with InputT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>, FindResultT = boost::iterator_range<const char*>, FormatResultT = boost::algorithm::detail::empty_container<char>]â 
/usr/include/boost/algorithm/string/detail/find_format_all.hpp:179: instantiated from âvoid boost::algorithm::detail::find_format_all_impl(InputT&, FinderT, FormatterT, FindResultT) [with InputT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>, FindResultT = boost::iterator_range<const char*>]â 
/usr/include/boost/algorithm/string/find_format.hpp:247: instantiated from âvoid boost::algorithm::find_format_all(SequenceT&, FinderT, FormatterT) [with SequenceT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>]â 
/usr/include/boost/algorithm/string/erase.hpp:588: instantiated from âvoid boost::algorithm::erase_all(SequenceT&, const RangeT&) [with SequenceT = const char [2], RangeT = char [20]]â 
test1.cpp:12: instantiated from here 
/usr/include/boost/algorithm/string/detail/replace_storage.hpp:35: error: assignment of read-only location 
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_algobase.h: In function â_OI std::__copy_aux(_II, _II, _OI) [with _II = const char*, _OI = const char*]â: 
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_algobase.h:326: instantiated from âstatic _OI std::__copy_normal<<anonymous>, <anonymous> >::copy_n(_II, _II, _OI) [with _II = const char*, _OI = const char*, bool <anonymous> = false, bool <anonymous> = false]â 
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_algobase.h:387: instantiated from â_OutputIterator std::copy(_InputIterator, _InputIterator, _OutputIterator) [with _InputIterator = const char*, _OutputIterator = const char*]â 
/usr/include/boost/algorithm/string/detail/replace_storage.hpp:87: instantiated from âForwardIteratorT boost::algorithm::detail::process_segment_helper<HasStableIterators>::operator()(StorageT&, InputT&, ForwardIteratorT, ForwardIteratorT, ForwardIteratorT) [with StorageT = std::deque<char, std::allocator<char> >, InputT = const char [2], ForwardIteratorT = const char*, bool HasStableIterators = false]â 
/usr/include/boost/algorithm/string/detail/replace_storage.hpp:150: instantiated from âForwardIteratorT boost::algorithm::detail::process_segment(StorageT&, InputT&, ForwardIteratorT, ForwardIteratorT, ForwardIteratorT) [with StorageT = std::deque<char, std::allocator<char> >, InputT = const char [2], ForwardIteratorT = const char*]â 
/usr/include/boost/algorithm/string/detail/find_format_all.hpp:221: instantiated from âvoid boost::algorithm::detail::find_format_all_impl2(InputT&, FinderT, FormatterT, FindResultT, FormatResultT) [with InputT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>, FindResultT = boost::iterator_range<const char*>, FormatResultT = boost::algorithm::detail::empty_container<char>]â 
/usr/include/boost/algorithm/string/detail/find_format_all.hpp:179: instantiated from âvoid boost::algorithm::detail::find_format_all_impl(InputT&, FinderT, FormatterT, FindResultT) [with InputT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>, FindResultT = boost::iterator_range<const char*>]â 
/usr/include/boost/algorithm/string/find_format.hpp:247: instantiated from âvoid boost::algorithm::find_format_all(SequenceT&, FinderT, FormatterT) [with SequenceT = const char [2], FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::empty_formatF<char>]â 
/usr/include/boost/algorithm/string/erase.hpp:588: instantiated from âvoid boost::algorithm::erase_all(SequenceT&, const RangeT&) [with SequenceT = const char [2], RangeT = char [20]]â 
test1.cpp:12: instantiated from here 
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/stl_algobase.h:317: error: no matching function for call to âstd::__copy<true, std::random_access_iterator_tag>::copy(const char*&, const char*&, const char*&)â 

Answer 1

你有爭論換位和輸入字符串需要非const。

變化：

int main() 
{ 
    erase_all(" ","the quick brown fox"); 
    return 1; 
} 

到：

int main() 
{ 
    char s[] = "the quick brown fox"; 

    erase_all(s, " "); 
    return 0; 
} 

Answer 2

，以及你把投入提升的事實:: erase_all以錯誤的方式，你要實現的目標是不可能的。

你輸入的參數都是不可變的字節數組，不能通過boost修改。

這應該工作：

std::string input("The quick brown fox"); 
boost::erase_all(input, " "); 
std::cout << input << std::endl; // hopefully prints Thequickbrownfox