please wait
|
by Shervan360
Problem with stod function in C++
|
| Hello, I'd like to convert the string to double. after convert, s is not the same of d. Could you please help me? https://ibb.co/fMD1LT2 Thanks #include ... |
|
Jan 22, 2022 at 11:52am
[2 replies] Last: after convert, s is not the same of d True. As expected. Round-trip... (by seeplus)
|
|
by Rakib771
Operator overloading error for complex data
|
| I wrote this code vector<complex<double>> y1,y2; //some stuff vector<complex<double>> W_N; //some other stuff vector<complex<double>> term1(N/2), term... |
|
Jan 22, 2022 at 11:46am
[15 replies] Last: @lastchance, could be. I'll try that later. Thank you everyone for yo... (by Rakib771)
|
| Is there any way to add functions to std? |
| I have just been very curious as to how header files add functions or anything at all to std because i have tried all the following below but none of them work ... |
|
Jan 22, 2022 at 5:54am
[2 replies] Last: The standard library implementation does this: namespace std { void t... (by mbozzi)
|
|
by impetus
file search
|
| I need to take leftmost variable from last line of file. getIncrement.seekg( sizeof( ClientData )) gives me last line. How can i easily reach for leftmost var... |
|
Jan 21, 2022 at 12:48pm
[3 replies] Last: I would be tempted to say to read one letter at a time backwards into ... (by jonnin)
|
|
by Rakib771
Error with multiple template in operator overloading
|
| Simply, I tried overloading '+' operator for vector container. When I do this, <template<class T> std::vector<T> operator+(const std::vector<T>& vec1, const ... |
|
Jan 21, 2022 at 6:16am
[5 replies] Last: We can use an expression template to hold the result of the + expressi... (by JLBorges)
|
| how would i match get a word only if it is between 2 numbers using regex |
| how would I match get a word only if it is between 2 numbers using regex eg the input is: 5testword5,5testword5testword43 it matches testword;(so I can replace ... |
|
Jan 20, 2022 at 11:05pm
[2 replies] Last: @dizzyDon only works for the first word, inputs such as 123hello123he... (by codinglexernewbie)
|
| Simple login program will read from file but won't write to it. |
| I'm writing a simple login program that reads and writes info from a text file. The program will read from the file flawlessly but it can't seem to write to the... |
|
Jan 20, 2022 at 2:04pm
[2 replies] Last: This will work better, thank you for the correction. (by pizzafreak1991)
|
| Class Will Not Run |
| For an assignment, I'm supposed to create a class called piano and then use the methods: 1-) LoadNotes. This function takes a string as a parameter, the parame... |
|
Jan 20, 2022 at 12:41pm
[14 replies] Last: ... furthermore, that code does not "test" class Piano. It is closer t... (by keskiverto)
|
|
by impetus
system with variable
|
| Hello! Need to take variable char or string data and make system call (Linux CLI) as per above. Please advise const char key = "echo -n '3. Current Direc... |
|
Jan 20, 2022 at 10:37am
[13 replies] Last: > I don't know how to convert linux commands to C++ functions. https:/... (by salem c)
|
|
by Archino
Breaking down this class
|
| It's been quite some time since I've lasted tackled a programming assignment, so forgive me for what might be dumb questions. So I'm trying to get a grasp on th... |
|
Jan 20, 2022 at 6:37am
[13 replies] Last: Actually there are several problems: /** * Returns the element of the... (by coder777)
|
|
by Shervan360
What is the problem with 2d array in C++ code?
|
| Hello, I wrote the below code and I ran the code in "Code Blocks" IDE. if I enter m = 2 and n = 3 , the program cannot get 6 element. I attached an image.... |
|
Jan 19, 2022 at 2:08am
[4 replies] Last: https://stackoverflow.com/questions/936687/how-do-i-declare-a-2d-array... (by againtry)
|
|
by hypervoid
genericity
|
| Hello, I'm french so please forgive me if the vocabulary doesn't fit the English standard. I'm trying to make a generic class called Type with the help of te... |
|
Jan 18, 2022 at 4:45pm
[5 replies] Last: a constructor does not create more objects. if it is not in the code,... (by jonnin)
|
|
by janac
Incrementing iterator using an integer
|
| My question is: why can't I increment a list iterator using an integer? Here's the error, which says the + operator isn't defined for list iterator. "binar... |
|
Jan 18, 2022 at 9:39am
[9 replies] Last: Don't forget std::next() which can take a number of element positions ... (by seeplus)
|
|
by janac
Passing (?)constant iterators to function
|
| I don't understand how to know the constant-ness of an iterator. Looking at the error message, it seems to say that the iterators returned by begin() and end() ... |
|
Jan 17, 2022 at 9:41pm
[3 replies] Last: > are they constant references? Or is it that what they're pointing to... (by ne555)
|
|
by JohnCage
Help: Invalid conversion error, MINGW
|
| Hi, What is changed about thistiny func? This used to work earlier MINGW but now it hits an error. (MINGW version 10.x.x). The idea of the func is give access ... |
|
Jan 17, 2022 at 6:49pm
[2 replies] Last: Hi, Thank you much. I try to compile it with MINGW. Let's see... (by JohnCage)
|
|
by crazybird710
Establishing command keywords in an interpreter in C++
|
| Hello, all. I'm kinda new here, working on a new little thing. I was curious as to the nature of command prompts and the like, mainly having coded in Python. As... |
|
Jan 17, 2022 at 5:27pm
[10 replies] Last: Are you going to do lexical analysis to generate tokens and then synta... (by seeplus)
|
|
by Mif
How to modify numbers in file "C"
|
| Hello.. I want to modify a file that contain numbers which are divided by ",". The numbers in file are represented like this: Example 000.0,001.4,003.2,012... |
|
Jan 17, 2022 at 3:42pm
[8 replies] Last: I think I may have a mistake.. at the end of every line I forgot I don... (by Mif)
|
|
by seal2002
Print one line to multiple lines with \n or space or fixed length
|
| Hello, I would like to ask for your help to review my code. As the title, I would like to print one line to multiple lines with special character as `\n` (AS... |
|
Jan 17, 2022 at 7:54am
[6 replies] Last: Thank you, guys. Those solutions work expected and perfect. (by seal2002)
|
|
by s021623
Command line about descending numbers using input numbers
|
| I want to make a program by using the command line to descending numbers with an input of five numbers or below on Visual studios 2019, if the input of numbers ... |
|
Jan 16, 2022 at 4:45pm
[7 replies] Last: Oh. It's supposed to use command-line arguments for the program. Well ... (by seeplus)
|
|
by LucasRex
Form expression to tree printer
|
| I want to create a tree viewer from postfix expression and of course I'm stuck. First the code: #include <string> #include <stack> using namespace std; st... |
|
Jan 16, 2022 at 12:18am
[5 replies] Last: I guess it's just as easy to do it from the postfix form. #include <... (by DizzyDon)
|