General C++ Programming - January 2018 (Page 4)

by stav
[mingw] cc1plus permission denied
 
hey, im using mingw and im trying to compile my code using the following command: g++ *.cpp -out te...
[3 replies] Last: Does MinGW's G++ support the -pipe argument? This is supposed to su... (by mbozzi)
Beginner C++ program question
 
This is my first time with C++ and only a week in and my teacher goes way to fast!! and has already ...
[1 reply] : well, a design isn't code. Try extending the text above a little to e... (by jonnin)
Turning on lights
 
Hello, I am about to embark on a project where I use code to turn on a light switch. So far what I h...
[1 reply] : first is to figure out exactly how you will flip the switch... you ne... (by jonnin)
by Osmium
Strange error with gsl_matrix_complex type
 
Dear community, when using the following code: #include <gsl/gsl_linalg.h> #include <iostrea...
[2 replies] Last: Ok, thanks for the answer, I'll check this. (by Osmium)
Checking if user input is a number or character
 
Hey guys, Does anyone know how to write a programme that checks if the users input is a number o...
[5 replies] Last: > You need to clear the rest of the line whether the input is good or ... (by JLBorges)
Which one is better?
 
Hello guys, I am beginning directX 11 game developement and I think I need a book so i asked many pe...
[no replies]
crashing allocator for std.:unordered_map
 
When trying to invoke a custom templated PoolAllocator<T> for std::unordered_map<T>, I get segfaults...
[5 replies] Last: I have a rebind, which should explain why std::map works and using the... (by dailydols)
Why cannot i use (==) or (>=) in Xcode?
 
I do not know why i cannot use == or >= on Xcode on mac to the this simple code. #include <iostre...
[2 replies] Last: Thank you very much keskiverto. I fixed the error, with your clarifica... (by Chilli Mustard)
Does money_get<> work correctly?
 
On coliru, I have tested the money_get <> facet for USD and EUR. It works correctly (as far as my ...
[6 replies] Last: As mentioned on cppreference page for std::money_get::get, std::showba... (by sm2345110)
How to iterate two vectors at the same time in For LOOP
 
Hi all, I have a issue where two different vectors has to iterate at same time. Basically to sa...
[3 replies] Last: What you want is an up-and-coming feature of C++17 compliance that eve... (by Duthomhas)
by WiWo
Late binding in a list
 
I'm using a list to store objects of different classes, which have a common base class. Moreover whe...
[2 replies] Last: Thanks a lot. I thought this would have not worked because in my proj... (by WiWo)
Google Mock and pointers in the test
 
Hi Could someone explain me what is going on in this test: SimpleTest.h #include "gmock/gmock.h"...
[3 replies] Last: Could you explain what do you mean by "leak". When an invocation of ... (by cire)
C++ Input verification
 
Hey guys, Does anyone know how to write a programme that checks if the user's input is a number ...
[5 replies] Last: #include <iostream> #include <string> #include <cctype> using namespa... (by lastchance)
BITCOIN C++
 
hey guys, I was wondering if anyone knew how to write a simple programme on bitcoin and how it wor...
[no replies]
Removing White Spaces
 
Guys I'm doing an Scanner for a compiler so i'm testing the basic read, deleting and write in a sep...
[5 replies] Last: > I'm doing an Scanner for a compiler We can't just remove (or ignore... (by JLBorges)
BITCOIN - CRYPTOCURRENCY
 
Hello guys, I am really interested in bitcoin and cryptocurrency and I just found out that bitcoi...
[no replies]
Limited Login Attempts
 
Hello c++ programmers, Im a beginner in c++ and im trying to make a programm that will close after y...
[4 replies] Last: @Ganado - Really good feedback, thanks sir👍 (by jono ava)
C++ User input verificartion
 
Hello C++ programmers, I am finding it difficult to write a programme in C++ that automatically k...
[9 replies] Last: Thanks for that, really helpful👍 (by jono ava)
storing a json object in a vector
 
Hi guys, I have a question. I am working with a json file for the first time, and I am trying to st...
[1 reply] : One problem is this: std::vector<int>data ; // This is not filled std... (by coder777)
Fields in the test class are not visible. Google Test, CLion
 
I am writing unit test in CLion with Google Test Test.h #include <gtest/gtest.h> class CycleTes...
[1 reply] : To use a test fixture, replace the macro TEST with TEST_F. The interf... (by mbozzi)
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