General C++ Programming - C++ Forum

when i do: IsOperator(strinput[uintStringIndex+1])=='=' why i get these warning: "comparison of constant ''='' with boolean expression is always false [-Wb...

[11 replies] Last: Brilliant :) (by Ganado)

by JustinPlusPlus

c++ simple trees

Can someone please tell me why the code crashes? I'm trying to code a simple binary search tree. Main.cpp #include <iostream> #include "tree.h" int main() ...

[2 replies] Last: Thanks for the help (by JustinPlusPlus)

by nikita00

competitive.. (1,2)

Please explain the below question with more testcases and explaining each of them. Katya has a sequence of integers a1,a2,…,an and an integer m. She def...

[32 replies] Last: How do I find modulo of large number in NMNMX? I have got the logic bu... (by luta)

by italo08

Array

Hi guys, I have this list and I want put in array and then call it Aries March 21 - April 19 Taurus April 20 - May 20 Gemini May 21 - June 21 Cancer J...

[no replies]

by closed account DEhqDjzh

Collision Detection Algorithm

Hi, I've got an array of GameObject class and I want to do something like this: vector<Gamobject> objects Trigger t; // will there be a problem if the trig...

[1 reply] : Collision Detection is a very broad subject, and the techniques can di... (by Ganado)

by Kr002

Maximization problem in 1D

Problem: We are given n points on a line numbered from 1..n and also the colors which we can use to connect any two adjacent points. 1 can be connected to 2 o...

[3 replies] Last: ok. hmm. still thinking. so far looking at … find all the conn... (by jonnin)

by adam2016

static vs dynamic linking

Hi guys,so I have asked a similar question before, but sometimes we need to include both a .lib file(static library) and a .dll file(dynamic library) with so...

[1 reply] : The .lib files are of two kinds: static libaries and import libraries.... (by tpb)

by nikita00

Competitive progrsmming

i am finding difficulty in finding x how should i find that? i can find Y in nlogn but not able to get the value of x You are given a string S of lowercase...

[13 replies] Last: You have written the wrong code in the input method such as Subtask #1... (by shivkumar12)

by lawj267

Need help looping through list of data frame

I have a list of data frames and I want to loop through the list and within each element in that list (i.e., data frame) loop through the columns to transform t...

[3 replies] Last: No prob. Alternatively, this is exactly the kind of thing that awk was... (by tpb)

by ORF

different behaviour compiled by clang vs GCC

Hello, I have a multi-thread program, which behaves differently when compiled by GCC or clang (exactly the same source code; same CMakeLists.txt ). The m...

[4 replies] Last: also, see what happens if you put the volatile keyword on the variable... (by jonnin)

by Albuquerster

Calculate consume cpu language c

Hi! How calculate consume cpu in process using language c? Thanks, Thcelo

[6 replies] Last: Use KBW's answer. (by jonnin)

by adam2016

dll resources?

Hi guys so from what I read and I will quote an answer from stackoverflow A DLL contains functions, classes, variables, UIs and resources (such as icons,...

[4 replies] Last: how would a dll file possibly contain resources such as icons,images ... (by gaxio)

by mk3000

problem with adding number to variable when overloading a operator

#include <iostream> using namespace std; class MY_OBJECT { public: int x, y, w, h; }; class MY_ROOM { public: MY_OBJECT *objects ; int objNum = 0...

[2 replies] Last: When you see << or >> in the context of a stream, the arrow points in ... (by mbozzi)

by kohlrak

What's wrong with the language? (1,2)

So, I have been using C++ informally (and a ton of other things, but C++ was my first) since middle school, which was about 15 years ago. It was nice, all these...

[20 replies] Last: [quote=helios]b.foo() can be resolved statically because B overrides n... (by Peter87)

by tristan1333

Access pointer methods of pointer vector

I'm not really sure how to phrase the question exactly correctly, but I've declared two vectors std::vector<enemy*> enemies; std::vector<hit_area *> effects;...

[4 replies] Last: repackage data? Eg, say you had a list or tree or something of data ... (by jonnin)

by closed account DEhqDjzh

How to create executable from engine ?

hi, I am working on a game engine project but I have a problem. In my game engine, there will 2 modes. Editor mode and play in editor mode(Like in unity). But I...

[11 replies] Last: Yeah, usually if you have a game engine it either loads DLLs (might be... (by kohlrak)

by closed account DEhqDjzh

sdl_ttf Corrupted message

hi, the message should say "current inited object count:" but it looks like this : http://i.hizliresim.com/vPXgn4.jpg here is the code: void displaytext(co...

[7 replies] Last: I see someone already fixed your problem, but there's another huge pro... (by gaxio)

by stalha97

Storing text file(usually made with fstream) ONLINE

In Short, i want to use fstream, but rather than the fstream accessing files from the local program folder...i want fstream to access Files present online. (eve...

[4 replies] Last: I agree with above, my thoughts are you simply need something to contr... (by SamuelAdams)

by closed account DEhqDjzh

Save vector objects in a file

Hi, my older question http://www.cplusplus.com/forum/general/238988/ was about creating an object factory. But now I have a problem I must save objects in vect...

[13 replies] Last: Thank you :) (by closed account DEhqDjzh)

by sonivinay1

why increment Operator Producing such an output

#include<constream.h> void main() { clrscr(); int n=10 ; int b ; // 13 13 13 b = ...

[1 reply] : b = ++n + ++n + ++n; This does three increments, and three addition... (by Repeater)

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General C++ Programming - July 2018 (Page 5)