c++ - 使用std::find和std::string数组时出现的问题

Question

我正在尝试运行此比较器:

if (std::find(movements->begin(), movements->end(), commandBuffer) != movements->end())

与:

const std::string movements[8] = {"north", "south", "east", "west", "n", "s", "e", "w"};

其中commandBuffer是std::string。
在MinGW32 9.2.0上，我得到以下信息:

error: no match for 'operator==' (operand types are 'const char' and 'const std::__cxx11::basic_string')

Answer 1

使用std::cbegin和std::cend，或将数组更改为std::array:

std::array<const std::string, 8> movements = {"north", "south", "east", "west", "n", "s", "e", "w"};
const std::string commandBuffer = "north";

if (std::find(movements.begin(), movements.end(), commandBuffer) != movements.end())
    std::cout << "Found!" << std::endl;