std::binary_function 未定义问题

使用高版本C++编译器编译旧的SDK的时候,SDK代码中会含有一些已经废弃的函数;如std::binary_function

修改方式:

原始代码:

namespace {

struct NameCompare: std::binary_function <const char *, const char *, bool>
{
    bool
    operator () (const char *x, const char *y) const
    {
    return strcmp (x, y) < 0;
    }
};

修改后:

template<class Arg1, class Arg2, class Result>
struct binary_function
{
    using first_argument_type = Arg1;
    using second_argument_type = Arg2;
    using result_type = Result;
};

template <typename ArgumentType, typename ResultType>
struct unary_function
{
    using argument_type = ArgumentType;
    using result_type = ResultType;
};

namespace {

struct NameCompare: binary_function <const char *, const char *, bool>
{
    bool
    operator () (const char *x, const char *y) const
    {
    return strcmp (x, y) < 0;
    }
};

 

posted on 2024-10-10 10:21  邗影  阅读(34)  评论(0编辑  收藏  举报

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