I’m pretty new to C++ and this site so there are bound to be errors. When I try to compile my code I get errors like error: missing template argument before ‘b’. I’ve been searching the world for answers for hours and it has led me here. My assignment is to implement a templated class Collection … Read more
It looks to me as if this is due to a typo, and you should use the variable ‘j’ in the second loop. After the first loop, the variable ‘i’ contains the value 52, so it sounds expected that calling nums.at(i) would throw a std::out_of_range, since nums only contains 52 values, starting at index 0. … Read more
On my computer I have Windows 7 x86. I installed MinGW, I wrote the path but when I go in cmd.exe and write g++ -v it says: But when I write the make -v command it recognizes it. I need this for school, I work in Eclipse, I even installed the latest java(I saw it … Read more
First of all, this is how you should provide a definition for member functions of a class template: Secondly, those definitions cannot be put in a .cpp file, because the compiler won’t be able to instantiated them implicitly from their point of invocation. See, for instance,
EncodeAndSend is not a static function, which means it can be called on an instance of the class CPMSifDlg. You cannot write this: It should rather be called as:
Why not do it much much simpler – with an elegant while-loop instead of trying to carefully analyze whether that overcompilcated for-loop is correct?
I have an issue with std::stol. All answers I have found regarding to issues with std::stol or std::stoi are dealing with C++11 compiling / building. When I use std::stol() I get the following error: Any ideas? Building with gcc -std::C++11 works fine. Note: I think this is my first C++11 expression I use.
A “floating point number” is how computers usually represent numbers that are not integers — basically, a number with a decimal point. In C++ you declare them with float instead of int. A floating point exception is an error that occurs when you try to do something impossible with a floating point number, such as divide by zero.
Yes, you typically set this in a Makefile: One layer above you can also detect a suitable compiler via autoconf, cmake or whichever other meta-buildtool you might deploy. You of course play games as define g++11 as g++ -std=c++11 but such set-ups are not portable. g++-6.* will default to c++14 so at some this switch will be implicit. But it might take … Read more
Instructions Things You’ll Need Proficiency in C++ C++ compiler Debugger and other investigative software tools 1 Understand the operator basics. The C++ operator new allocates heap memory. The delete operator frees heap memory. For every new, you should use a delete so that you free the same memory you allocated: 2 Reallocate memory only if you’ve deleted. In the code below, str acquires a … Read more