Incomplete type is not allowed: stringstream
#include <sstream> and use the fully qualified name i.e. std::stringstream ss;
c++
Expected unqualified-id before ‘[‘ token
This is C++, not Java! Declare arrays like this: Please note that the arrays in C++ must have a size at compile time. In the above example, it is 1000.
System.out.println function syntax in C++
As larsmans already pointed out, java has overloads on the operator +. So you can concat strings with integer. This is also possible in C++ but not out of the box for all types. You could use a templated functions like this. But I would recommend to take a look at boost::format. I guess this library … Read more
What is the return type of sizeof operator?
C++11, §5.3.3 ¶6 The result of sizeof and sizeof… is a constant of type std::size_t. [ Note: std::size_t is defined in the standard header (18.2). — end note ] You can also do a quick check: which correctly outputs 1 on my machine. As @Adam D. Ruppe said in the comment, probably the compiler does not complain because, since it already knows the result, … Read more
Using OpenMP with clang
Update Building the latest trunk of LLVM/Clang (clang-3.8), installing libiomp5, and specifying the location of the gomp omp header files worked. Note that the Ubuntu package for libiomp5 isn’t quite correct, so you will need to add a symlink in /usr/lib from /usr/lib/libiomp5.so to /usr/lib/libiomp5.so.5. I’m using g++-5.1 and clang++-3.6 on Linux Mint 17.2 (essentially … Read more
What does ** mean in C++?
There is no specific ** operator in C++, instead it’s two separate asterisks, and asterisks in a declaration denotes pointer declaration. So in the declaration the argument head is declared to be a pointer to a pointer to IntElement.
Vector declaration “expected parameter declarator”
You have to initialize the variable in the constructor’s initializer list:
expected primary-expression before ‘]’ token
When passing arrays you should never add the [ ]. So the line should be this: Only use the [ ] if you want to pass a certain element, like such: gradeArray[5]
cannot specify explicit initializer for arrays
As everyone else was saying, set the properties of my class to static const and then define them in the cpp file for the class: header file: cpp:
Is there a C++ equivalent to getcwd?
Ok, I’m answering even though you already have accepted an answer. An even better way than to wrap the getcwd call would be to use boost::filesystem, where you get a path object from the current_path() function. The Boost filesystem library allows you to do lots of other useful stuff that you would otherwise need to … Read more