怀疑std :: array C ++ 11库坏了吗？我该怎么办？
从谷歌我似乎无法找到明确的答案，但我不知道该怎么做。我怀疑在我用g ++的数组C ++ 11库编写的一个更大的程序中可能存在问题，并编写了一个测试程序。我正在使用g ++ 4.8.1。
main.cpp中：
#include <iostream>
#include <array>
int main()
{
std::array<int,5> vector;
return 0;
}
我的测试命令行编译是：
g++ main.cpp -std=c++11
有错误..
In file included from main.cpp:2:0:
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:107:12: error: 'array' has not been declared
swap(array& __other)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array: In member function 'void std::Array<_Tp, _Nm>::swap(int&)':
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:109:50: error: request for member 'begin' in '__other', which is of non-class type 'int'
{ std::swap_ranges(begin(), end(), __other.begin()); }
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array: At global scope:
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:228:22: error: 'array' does not name a type
operator==(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:228:27: error: expected ',' or '...' before '<' token
operator==(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:228:74: error: 'bool std::operator==(int)' must have an argument of class or enumerated type
operator==(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:233:22: error: 'array' does not name a type
operator!=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:233:27: error: expected ',' or '...' before '<' token
operator!=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:233:74: error: 'bool std::operator!=(int)' must have an argument of class or enumerated type
operator!=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:238:21: error: 'array' does not name a type
operator<(const array<_Tp, _Nm>& __a, const array<_Tp, _Nm>& __b)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:238:26: error: expected ',' or '...' before '<' token
operator<(const array<_Tp, _Nm>& __a, const array<_Tp, _Nm>& __b)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:238:69: error: 'bool std::operator<(int)' must have an argument of class or enumerated type
operator<(const array<_Tp, _Nm>& __a, const array<_Tp, _Nm>& __b)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:246:21: error: 'array' does not name a type
operator>(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:246:26: error: expected ',' or '...' before '<' token
operator>(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:246:73: error: 'bool std::operator>(int)' must have an argument of class or enumerated type
operator>(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:251:22: error: 'array' does not name a type
operator<=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:251:27: error: expected ',' or '...' before '<' token
operator<=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:251:74: error: 'bool std::operator<=(int)' must have an argument of class or enumerated type
operator<=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:256:22: error: 'array' does not name a type
operator>=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:256:27: error: expected ',' or '...' before '<' token
operator>=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:256:74: error: 'bool std::operator>=(int)' must have an argument of class or enumerated type
operator>=(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:262:10: error: variable or field 'swap' declared void
swap(array<_Tp, _Nm>& __one, array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:262:10: error: 'array' was not declared in this scope
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:262:19: error: expected primary-expression before ',' token
swap(array<_Tp, _Nm>& __one, array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:262:27: error: '__one' was not declared in this scope
swap(array<_Tp, _Nm>& __one, array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:262:34: error: 'array' was not declared in this scope
swap(array<_Tp, _Nm>& __one, array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:262:43: error: expected primary-expression before ',' token
swap(array<_Tp, _Nm>& __one, array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:262:51: error: '__two' was not declared in this scope
swap(array<_Tp, _Nm>& __one, array<_Tp, _Nm>& __two)
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:268:9: error: template declaration of 'constexpr _Tp& std::get'
get(array<_Tp, _Nm>& __arr) noexcept
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:268:9: error: 'array' was not declared in this scope
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:268:18: error: expected primary-expression before ',' token
get(array<_Tp, _Nm>& __arr) noexcept
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:268:26: error: '__arr' was not declared in this scope
get(array<_Tp, _Nm>& __arr) noexcept
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:277:9: error: template declaration of 'constexpr _Tp&& std::get'
get(array<_Tp, _Nm>&& __arr) noexcept
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:277:9: error: 'array' was not declared in this scope
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:277:18: error: expected primary-expression before ',' token
get(array<_Tp, _Nm>&& __arr) noexcept
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:277:27: error: label '__arr' referenced outside of any function
get(array<_Tp, _Nm>&& __arr) noexcept
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:277:27: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:285:15: error: 'array' does not name a type
get(const array<_Tp, _Nm>& __arr) noexcept
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:285:20: error: expected ',' or '...' before '<' token
get(const array<_Tp, _Nm>& __arr) noexcept
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array: In function 'constexpr const _Tp& std::get(int)':
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:289:9: error: '__arr' was not declared in this scope
_S_ref(__arr._M_elems, _Int);
^
In file included from c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\iostream:38:0,
from main.cpp:1:
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array: At global scope:
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:306:23: error: 'array' is not a member of 'std'
struct tuple_size<_GLIBCXX_STD_C::array<_Tp, _Nm>>
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:306:23: error: 'array' is not a member of 'std'
In file included from main.cpp:2:0:
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:306:50: error: wrong number of template arguments (2, should be 1)
struct tuple_size<_GLIBCXX_STD_C::array<_Tp, _Nm>>
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:303:11: error: provided for 'template<class _Tp> class std::tuple_size'
class tuple_size;
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:306:53: error: expected unqualified-id before '>' token
struct tuple_size<_GLIBCXX_STD_C::array<_Tp, _Nm>>
^
In file included from c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\iostream:38:0,
from main.cpp:1:
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:314:32: error: 'array' is not a member of 'std'
struct tuple_element<_Int, _GLIBCXX_STD_C::array<_Tp, _Nm>>
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:314:32: error: 'array' is not a member of 'std'
In file included from main.cpp:2:0:
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:314:59: error: wrong number of template arguments (3, should be 2)
struct tuple_element<_Int, _GLIBCXX_STD_C::array<_Tp, _Nm>>
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:311:11: error: provided for 'template<unsigned int _Int, class _Tp> class std::tuple_element'
class tuple_element;
^
c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\array:314:62: error: expected unqualified-id before '>' token
struct tuple_element<_Int, _GLIBCXX_STD_C::array<_Tp, _Nm>>
^
main.cpp: In function 'int main()':
main.cpp:5:2: error: 'array' is not a member of 'std'
std::array<int,5> vector;
^
main.cpp:5:13: error: expected primary-expression before 'int'
std::array<int,5> vector;
^
main.cpp:5:13: error: expected ';' before 'int'
很明显，从错误中，有很多对我所包含的std :: array文件的引用，它似乎是错误的来源。我该怎么办？
提前致谢。
编辑：添加了编译命令和g ++版本。
3 个答案:
答案 0 :(得分：8)
事实证明，一个拼写错误进入了OP的<array>。应该是什么
template<typename _Tp, std::size_t _Nm>
struct array
{
成了
template<typename _Tp, std::size_t _Nm>
struct Array
{
在尝试处理<array>的其余部分时导致数百万编译错误。
答案 1 :(得分：0)
这是一个有效的C ++ 11程序。
您得到的错误很可能是由于方言选择：C ++ 98模式不提供std::array容器。请参阅http://en.cppreference.com/w/cpp/container/array
具体来说，您的错误归结为以下几点：
main.cpp: In function 'int main()':
main.cpp:5:2: error: 'array' is not a member of 'std'
std::array<int,5> vector;
^
main.cpp:5:13: error: expected primary-expression before 'int'
std::array<int,5> vector;
^
main.cpp:5:13: error: expected ';' before 'int'
因此，只需将-std=c++11添加到命令行，就可以了。
答案 2 :(得分：0)
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