c++(1):c++编译报错汇总_error: call of overloaded 'asin(double)' is ambigu

记录一些c++编译报错的细节：

1 报错：error: ‘isnan’ was not declared in this scope

        在cpp文件中添加

#include <math.h> //hxz
using namespace std; //hxz

2 error: reference to ‘map’ is ambiguous

/home/meng/Desktop/yellow/C2planner/src/ptm2ogm_v3/src/ptm2ogm.cpp:323:5: error: reference to ‘map’ is ambiguous
     map.header.frame_id=world_frame;
     ^
/home/meng/Desktop/yellow/C2planner/src/ptm2ogm_v3/src/ptm2ogm.cpp:61:25: note: candidates are: nav_msgs::OccupancyGrid map
 nav_msgs::OccupancyGrid map;
                         ^
In file included from /usr/include/c++/5/map:61:0,
                 from /opt/ros/kinetic/include/ros/console.h:42,
                 from /opt/ros/kinetic/include/ros/ros.h:40,
                 from /home/meng/Desktop/yellow/C2planner/src/ptm2ogm_v3/src/ptm2ogm.cpp:1:
/usr/include/c++/5/bits/stl_map.h:96:11: note:                 template<class _Key, class _Tp, class _Compare, class _Alloc> class std::map
     class map
           ^

        这里是与c++的库/usr/include/c++/5/bits/stl_map.h:96:11有冲突

        修改自己定义的变量名如下，并在使用位置相应修改：

// nav_msgs::OccupancyGrid map;
nav_msgs::OccupancyGrid map_;

        这里需要注意以下：map是STL的一个关联容器，它提供一对一（其中第一个可以称为关键字，每个关键字只能在map中出现一次，第二个可能称为该关键字的值）的数据 处理能力，由于这个特性，它完成有可能在我们处理一对一数据的时候，在编程上提供快速通道。

        我的cpp中使用如下：

  std::map<std::pair<int, int>, std::vector<double>> gridMap;

3 call of overloaded ‘abs(double)’ is ambiguous

/home/xxxxapollo_speed/math.hpp:18:25: error: call of overloaded ‘abs(double)’ is ambiguous
     if (std::abs(t1 - t0) <= 1.0e-6) 

/home/xxxxxx.cpp:25:39: error: call of overloaded ‘abs(const double&)’ is ambiguous
       s_ddot_min_(-std::abs(s_ddot_min)),

        修改，在对应头文件添加:

#include <cmath>

        这里有说明:g++编译时abs()遇到无法理解的问题(已解决)_梧桐下的四叶草的博客-CSDN博客