C++ :: From String To A Code
Apr 17, 2013I wanna to know how can i get a string from the user and treat it as a c++ code ..is there any way to do that ??
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C++ :: How To Put String Content Into Source Code
May 23, 2013I'm trying to write a program that prompts the user to enter a math expression (i.e 2*x + x*x) and a value of x. Then generate the value of y. My real question is: Is there a way to put the content of a string into the source code?
Example:
string math_function;
double x, y;
cout << "Enter the function: ";
getline(cin, math_function);
[Code] .....
C++ :: Revert A String Code Is Not Working
Feb 10, 2013I created a .txt file that I called in.txt. It has the letters: a b c d e. I put it in the same folder as the c++ code below. I was hoping that I after I compile and run the code, the in.txt file would read: e d c b a. Unfortunately, it doesn't. Even when I give the ofstream file another name, it does not create another text file.
Code:
#include<iostream>
#include<fstream>
#include <limits>
[Code].....
C++ :: Existing Code For String To Expression?
Apr 17, 2012I would like to get hold of the code for a function that takes a string as input argument and returns a numerical value, either integer or double, according to the the expression represented by the string. For example the string may look like this:
Code:
"(256 * d3 + d4) * factor - offset"
then the function would calculate the value of
Code:
(256 * d[3] + d[4]) * factor - offset
where d is an integer array, factor and offset are double or int variables or constants. For my application the name for the array can be fixed to be "d", and the names for other variables and constants are known. The closest thing I could find on-line is this:
[URL]
which only does literal integer calculations, no double, no variables or constants. Are there existing code that does what I need or do I have to write my own?
C++ :: Code Only Prints Out First Char Of Each String
Feb 27, 2012I have the following code that prints out only the first char of each string. Why does it not print out the entire unsgined char* ?
Code:
#include <iostream>
#include <vector>
using namespace std;
void PrintVector(vector<unsigned char*>& data) {
for(size_t i = 0; i < data.size(); i++)
[Code] .....
C/C++ :: Get Code To Sum A String Of Numbers Input From A File
Nov 5, 2014This program gets input from a file and output to the screen and to a file. The difficulty I am having is summing the number I retrieve from the file for the individual numbers of sightings.
#include <fstream> // enables us to read and write files
#include <iostream> // for cin and cout
#include <cstdlib>
#include <string> // enables us to hold strings of characters
#include <cctype>
using namespace std;
[code].....
C++ :: Turbo Code To Print String Through Installed Printer
Nov 10, 2013C++ Code To Print String through Installed Printer. How to user Printer File Name?
View 9 Replies View RelatedC++ :: Debugging Code (Displaying Char String Per Character)
Jul 16, 2014I've tried a bunch of alternative methods to prevent an assertion error. "not understanding" the bug and why I'm getting it are relevant here, not proper, (or more appropriate), coding methods. I would write it in another way to prevent the error, I simply want to understand what is happening during run-time that causes the situation.What is the bug?
---------------------------------------
[assertion error]
[expression _block_type_is_valid(phead->nBlockUse)]
--------------------------------
Code:
#include <iostream>
#include <string>
using namespace std;
int main() {
cout << "Enter your name : ";
string Name;
[code]...
C# :: Writing Pseudo Code - Program That Converts Or Reverses Input String
Feb 20, 2014I have made a program that converts or reverses an input string. Here is my code working fine
static void Main(string[] args){
string input = Console.ReadLine();
string[] words = input.Split(' ')
for (int i = words.Length; i > 0; i--)
Console.Write(words[i - 1] + " ");
Console.WriteLine();
Console.ReadLine();
}
How can I write this program in pseudo code?
C :: Print Out - Array Code And Pseudo Code?
Apr 15, 2013I have assignment which requires me to print out and array code and a pseudo code. I dont no what a pseudo code is,.
View 2 Replies View RelatedC++ :: Reducing Code Duplication From Common Code Calling Common Class
Apr 13, 2014I have a class 'A' which is almost perfect for my needs. Class 'B' uses class 'A' I've now designed Class 'C' and Class 'D' and noticed that there is a good chunk of code in class 'B', 'C' and 'D' for using Class 'A' is duplicated. I've separated out this code in specific, standalone functions in each of the classes. Now I'm wondering where this code should go. At the moment, the functions are duplicated in the three calling classes (B, C and D). Placing the functions into class 'A' would break the single responsibility principle. Inheritance to add functionality would likely break both SRP and LSP. The one that seems that it may work is composition.
However, Is designing a complete class just for a few functions over kill?
Would it be valid for classes 'B', 'C' and 'D' to access both the new class 'E' (which would depend on A) and the old class 'A' (which would have to be the same instance as the instance in the new class 'E'), or should the new class 'E' provide sufficient functionality so that Classes B, C and D don't need to access Class A directly? It would seem that its then an incomplete interface of the original object with additional functionality (ie, incompatible) Or should I do it a completely different way?
Visual C++ :: Retrieving Size Of Each String In Order To Produce A New Buffer For Concatenated String
Feb 25, 2013What is the efficiency of the two assignments (line 1 and 2), i.e. (function calls, number of copies made, etc), also the Big O notation. I know there are function calls for retrieving the size of each string in order to produce a new buffer for the concatenated string...any difference between line 1 and 2 in terms of efficiency?
String s("Hello");
String t("There");
1. s = s + t;
2. s += t;
C# :: Unable To Implicit Convert Type Int To String Though Declared Variables As String
Mar 26, 2014Ok, so I'm writing this code and when I build it keeps saying cannot implicitely convert type int to string even though I declared my variables as string. Why is it giving me this error?
private static string Repair()
{
string result="";
string beep;
string spin;
Console.WriteLine("Does your computer beep on startup?:(y,n)");
[Code]...
C :: How To Get Scan Code Of ESC Key
Sep 17, 2014i wrote the following code :
Code:
#include<stdio.h>#include<conio.h>
#include<stdlib.h>
int a[][4] = {15,9,10,25,6,2,4,7,32,19,42,8,21,17,18,0};
void boxes();
void display();
void main()
{int ch,r=3,c=3,t;
[Code]...
not able to esc when i press esc key.how to get rid of this.
C++ :: How To Code AI For RTS Games
Oct 13, 2013I want to make a RTS game but how can I code an AI for RTS games. How to do that?
View 5 Replies View RelatedC++ :: How To Get Source Code From The Web
May 4, 2014I am making a game and want to make an updater that grabs the source code from a page on the web. Can this use things that are available to all platforms? It could just be something that grabs the text from the page and executing it (maybe using something like Python's exec() command ?) BTW I'm using mac
View 1 Replies View RelatedC++ :: Put Code In A Function
Feb 25, 2014this is my code i want to put the part where i have it do multiplication and addition into functions. and then call them so that it can run the addition and multiplication. Heres my code
# include <iostream>
using namespace std;
int main(){
[Code].....
C :: Program Where User Inputs A String And Prints Out Length Of String
Jan 29, 2014I would like to understand a function on strings. Below is a code that I took from my teacher where the user inputs a string and prints out the length of the string.
Code:
#include <stdio.h>
#include <string.h>
int main() {
char str[100];
int i = 0;
[Code] ....
Now I understand that it returns the count in "int" so my question is:
Let's say i declared
Code: int count = 0;
at the beginning of the code and then made
Code: count = strlen(str);
why wouldn't i have the same result? Is there a way to do it also?
C++ :: Eliminate Comma And Split String Into Individual String Variables
Nov 15, 2013I have this string d ="3 J JD, K" and i want to split the string to individual string. I have this code which eliminates the comma but doesn't split the string into individual string.
#include <iostream>
#include <string>
#include <sstream>
using namespace std;
int main() {
string str = "3 J JD,K";
stringstream ss(str);
[Code] ....
Output of the code is
3 J JD
k
but I want
3
J
JD
K
Also after I split the string is there any way to put the split string into individual string variables.
C/C++ :: Taking String As Input And Making It As Whole Array (string Literal)
Oct 19, 2014Very new to programming, and I know that there must be another way on inputting a string into each array cells not by just inputting it one by one, but as a whole. My code at the meantime is: [URL]
View 1 Replies View RelatedC++ :: DLL Project On Code Blocks
Feb 24, 2015I'm pretty new to C++ and I'm on Binary Trees in "Jumping into C++"! I've just created a DLL project on Code::Blocks, and I cannot get it to build and run: "You must select a host application to "run" a library..." is the message that I'm getting when I run the main code file. It's had no changes to it (except for a few extra, unnecessary line feeds), and it's the file which Code::Blocks generates on a DLL project.
View 13 Replies View RelatedC++ :: Why Does This Code Crash Half Way Through
Jan 16, 2014whats wrong with this code, I'm trying to parse a .js file and replace all the ";" with "; " i.e add a new line after each ";". So I load the file into a char[] buffer then assign a string to this contents of this buffer. Then loop char by char through using an iterator and check for a ";", if found use replace. So int i gets to about 85898 then crashes with unknown error, 'i' should reach about 175653. It does work up till it crashes. And, is this not a simpler way to load a file into a buffer, there is in C.
Code:
#include <iostream>
#include <fstream>
#include <algorithm>
#include <vector>
#include <stdlib.h>
int main()
[code]....
C :: Function Return Code / Value?
Sep 27, 2014I have a function that needs to return a "uint8_t" value. However before doing the processing I need to perform a test on the argument to check if it's between expected boundaries. Although this function works it gives (a logical) warning that not always a value is returned although expected. What is the normal way for functions like these where I normally should return e.g. -1 in case the test doesn't succeed and otherwise the uint8_t (t) value?
Code:
uint8_t myFunc(int a) {
if (a >= 0 && a <= 100) {
// Perform actions
uint8_t = ...
return t;
}
}
C :: Debugging A Code On Linux OS
Apr 11, 2013I have a code that I'd like to debugg it.
Question
1 - What is the correct command line to use the debugger ?
2 - Do I need to install additional software for the debugger ?
if yes what it's name?
I use ububtu 12.4compiling command: gcc abc.c -lpthread -o abc
C :: How To Strip A Code To Binary
Aug 25, 2014I am using windows 64 bit 2007 , codeblocks and ive tried googling on how to strip all symbols to binary so that the people i send it to cannot read the game files but ive not found anything much... How do i do it on codeblocks..? Code:
View 4 Replies View RelatedC :: Same Error Returned For All Code
Mar 11, 2014I've had with visual studio but nothing seems to be working. No matter what I do even with simple programs, like Hello World, I'm always getting an error about a .pch header file.fatal error C1083: Cannot open precompiled header file: 'DebugConsoleApplication1.pch': No such file or directory
This is only for one of the programs I've made but I'm pretty new to programming and I've not even used the header files for anything so I have no clue how to resolve this problem.