base operand of '->' has non-pointer type 'const Comple

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base operand of '->' has non-pointer type 'const Comple

base operand of '->' has non-pointer type 'const Comple ->操作符前面的操作数类型不是指针类型错误原因函数(&对象) { 对象名.成员 //正确方式对象名->成员 //编译报错 base operand of '->' has non-pointer type ....... } 引用传递的参数应该理解为对象,而不是指针…

c/c++ 重载数组操作符[] operator[ is ambiguous, as 0 also mean a null pointer of const char* type.

// Note: //int x = a[0].GetInt(); // Error: operator[ is ambiguous, as 0 also mean a null pointer of const char* type. int y = a[SizeType(0)].GetInt(); // Cast to SizeType will work. int z = a[0u].GetInt(); // This works too. 0u = SizeType(0) Json:…

力扣报错 runtime error: load of null pointer of type 'const int'

runtime error: load of null pointer of type 'const int' 要求返回的是int* 解决方案 1.指针使用malloc分配空间用 int * p = (int * )malloc(sizeof(int)*2);取代 int a[2]={0}; 2.使用static 用 static int a[2]={0}; 取代 int a[2]={0};…

puts函数出现warning: passing argument 1 of ‘puts’ from incompatible pointer type（警告：从不兼容的指针类型传递“puts”的参数1）

代码: /************************************************************************* > File Name: ptr_variable.c > Author: Mr.Yang > Purpose:演示指向变量的指针 > Created Time: 2017年06月03日星期六 08时47分33秒 ********************************************************…

caffe: fuck compile error again : error: a value of type "const float " cannot be used to initialize an entity of type "float "

wangxiao@wangxiao-GTX980:~/Downloads/caffe-master$ make -j8find: `wangxiao/bvlc_alexnet/spl': No such file or directoryfind: `caffemodel': No such file or directoryfind: `wangxiao/bvlc_alexnet/0.77': No such file or directoryfind: `caffemodel': No su…

解决：function in namespace ‘std’ does not name a type + allocator_/nullptr/dellocator_ was not declared + base operand of ‘->’ has non-pointer type ‘std::vector<cv::Mat>’ 错误编译时报错（caffe）

解决方法,用到了c++11,g++命令需要加上-std=c++11选项附:g++默认的c++标准 gcc-6.4.0 gcc-7.2.0 默认是 -std=gnu++14gcc-4.3.6 gcc-4.4.7 gcc-4.5.4 gcc-4.6.4 gcc-4.7.4 gcc-4.8.5 gcc-4.9.4 gcc-5.4.0 默认是 -std=gnu++98gcc-3.0.4 gcc-3.1.1 gcc-3.2.3 gcc-3.3.6 gcc-3.4.6 gcc-4.0.4 gcc-4.1.…