C++ Definition and 813 Threads

C++ () is a general-purpose programming language created by Bjarne Stroustrup as an extension of the C programming language, or "C with Classes". The language has expanded significantly over time, and modern C++ now has object-oriented, generic, and functional features in addition to facilities for low-level memory manipulation. It is almost always implemented as a compiled language, and many vendors provide C++ compilers, including the Free Software Foundation, LLVM, Microsoft, Intel, Oracle, and IBM, so it is available on many platforms.C++ was designed with an orientation toward system programming and embedded, resource-constrained software and large systems, with performance, efficiency, and flexibility of use as its design highlights. C++ has also been found useful in many other contexts, with key strengths being software infrastructure and resource-constrained applications, including desktop applications, video games, servers (e.g. e-commerce, web search, or databases), and performance-critical applications (e.g. telephone switches or space probes).C++ is standardized by the International Organization for Standardization (ISO), with the latest standard version ratified and published by ISO in December 2020 as ISO/IEC 14882:2020 (informally known as C++20). The C++ programming language was initially standardized in 1998 as ISO/IEC 14882:1998, which was then amended by the C++03, C++11, C++14, and C++17 standards. The current C++20 standard supersedes these with new features and an enlarged standard library. Before the initial standardization in 1998, C++ was developed by Danish computer scientist Bjarne Stroustrup at Bell Labs since 1979 as an extension of the C language; he wanted an efficient and flexible language similar to C that also provided high-level features for program organization. Since 2012, C++ has been on a three-year release schedule with C++23 as the next planned standard.

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  1. R

    C/C++ Printing Int i in If Portion of C++ Code

    I need to print the int i right next to the main, but I need to do it while I am in the if portion of the following code: int i = 7; int main() { int i = 5; cout << ::i; if(1) { int i =9; cout << ::i<<endl; } return 0; } Right now it prints 7. I need it to print 5...
  2. E

    Comp Sci Creating an Array of Pointers to Objects in C++ Without Using Virtual Functions

    Homework Statement suppose i have class A. now i have 2 derative classes: A_1, A_2. i would like to create a 4'th class: Array_Class. Array_Class will have 2 pointers array (one for each class - A_1, A_2). i want to be able to get an object pointer from class A_1 or A_2, and place it in...
  3. Saladsamurai

    C/C++ Eclipse and C++ (Mac): Can we get this working here?

    So I installed Eclipse 3.7.0 (Indigo) for my Mac (Snow Leopard OS). I initially installed the "Java Only" version. That works fine. I then decided I wanted to consolidate to one IDE for both Java and C++ if possible. So, here is what I did: 1) Checked to make sure I have gcc, g++, gdb...
  4. I

    Comp Sci How Does This C++ Program Reverse Individual Words in a String?

    Write a program to reverse words of a string individually, for example if you enter: I love C++, it should display I evol ++C They've given the solution in my textbook but I don't quite understand the logic behind it. void main( ) { int l, i, k = 0 ; char str[80], word[80] ...
  5. I

    Comp Sci Difference between cout and cout.write in C++

    What's the purpose of cout.write. Isn't it pretty much the same thing as cout? For eg, the following code would work the same with cout and cout.write int main( ) { char string[80] ; cout<<"Enter string\n" ; cin.getline(string, 80) ; int x1 = strlen(string) ; for(int i = 0...
  6. C

    C/C++ C++ operator++ overloading, prefix vs postfix

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  7. F

    Comp Sci C++ Binary Search Tree preorder printing tree problem

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  8. N

    Comp Sci Towers of Hanoi Problem in C++: Solving the Classic Puzzle with Recursion

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  9. T

    C/C++ Beginner programmer looking for c++ book

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  10. L

    C/C++ What is the difference between C++ and a compiler

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  11. G

    C/C++ Need help in putting data into an array in c++

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  12. S

    Engineering  Calculate Equivalent Resistance of Resistors in C++

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  13. D

    Comp Sci Erase line in C++ console program

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  14. G

    C++ or Java for Undergraduate Research Oppurtunities?

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  15. Z

    C/C++ Converting string to integer using atoi in C++

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  16. R

    C/C++ Any ideas for a small c++ code I could make?

    I thing I've got the hang of the basics of c++ and want to try and make some thing that actually has a function other than just making code to calculate something that I could already have done using a calculator. Anyone got any ideas and then when I make I code post my code and see if any...
  17. R

    C/C++ RollCast's Classic Salmon Fly Proportion Calculator | C++ Help

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  18. A

    Comp Sci Function 'for' and 'while' in C++

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  19. P

    Comp Sci C++ Program Help (Newtons method)

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  20. nukeman

    Comp Sci Need help with C++ samples. Basic intro stuff. Thanks

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  21. nukeman

    Comp Sci My C++ simple program is not compiling - Need help, thanks

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  22. U

    Comp Sci Input Validation for only positive integers C++

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  23. U

    Comp Sci C++ Mode calculator problem (noob having problems)

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  24. J

    C/C++ Are there any good sources for learning Java as an experienced C++ programmer?

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  25. R

    C/C++ How to Create Patterns in C++ with For-Loops?

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  26. W

    Comp Sci Mulitplication Table in C++ with Loops

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  27. nukeman

    Comp Sci Need help writing C++ program that counts non-whitespace characters ?

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  28. nukeman

    Comp Sci Simple c++ program error ? Help, thanks

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  29. J

    C/C++ Decimal number from whatever base the user inputs c++

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  30. nukeman

    Comp Sci Can someone look over my C++ code - Simple short code

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  31. E

    Comp Sci C++ and Radial Probability Density

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  32. E

    Comp Sci C++ Factorial Calculator Exercise Solution

    Homework Statement Write a C++ code factorial.cc that calculates the factorial of an integer by direct multiplication. Start with your code in exercise (3), and modify it so that it gets "n" from the user and prints out n! = 1*2*3*...*(n-1)*n. To do this, use a "for" loop: int nfac...
  33. V

    Comp Sci  Print Prime Numbers b/w Two Given Numbers

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  34. N

    C/C++ Reading a string from file until whitespace c++

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  35. S

    C/C++ Which IDE is Best for Learning C++ on Windows 7?

    So I've been exposed to C a little with Arduinos and I've been wanting to learn some C++ for a while. Just wondering if anyone has any suggestions on what software I should start with. Right now I kinda need my computer for school so I'd prefer to keep it neat and not install a bunch of tiny...
  36. R

    C/C++ Is C++ code different on mac and PC

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  37. V

    Comp Sci C++ question awesome question challenging too

    C++ question...awesome question...challenging too ! How to write the c++ code for this sort of question...i couldn't get the logic even... to print the factors of a number given by the user in a pyramid pattern...like if 4 is the number given by the user...its factors are 1,2,4...the we hv...
  38. B

    C/C++ Image processing in visual studio c++

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  39. U

    C/C++ Why Use Public in C++ Class Inheritance?

    I just came across another question while brushing up on my c++. If you have a base class that uses virtual methods, when you try to use it to define a derived class then you *need* to prefix the base class name with "public", as in the following example. class ExampleBaseClass { ...
  40. C

    Comp Sci Need help with standard deviation C++ program

    Homework Statement Write a C++ program that accepts 10 floating-point values from a user and determines and displays the average and the standard deviation. All values more than four standard deviations away from the average should be dropped and then the new average and standard deviation...
  41. K

    C/C++ [Ask] How to write laplace transform in c or c++ ?

    [Ask] How to write laplace transform in c or c++ ?? Hi Guys.. if I have a laplace transform example : T(s) = 1/s+1. It's easy to solve or write in Matlab, but how to write it in C programm ?? thanks :)
  42. S

    C++ Compiler For Mobile Devices

    Many of us might have used compilers on our personal computers.But does anyone know of C++ compilers for handheld devices.They would help us compile programs on the go.
  43. L

    Comp Sci How can I display both miles and kilometers in a table using a C++ function?

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  44. pairofstrings

    C/C++ What is the purpose of data structures in C and C++?

    What is data structures in C and C++ all about? I heard that data structures are useful in constructing menu items of any software's menu bar. Is it true? Please tell me more examples of the applications of data structures in real life. Thanks.
  45. S

    C/C++ Optimal Container for Storing Vectors in C++?

    What is the best container to store vectors in for C++? Is it possible to declare a vector whose elements are vectors? Or is there some other sort of container that can be used? I was thinking of using a vector of vectors because I need to be able to access specific elements while also being...
  46. S

    C/C++ C++ Help: Sorting with Arrays & Merging Strings

    I'm working on programming my own sorting code in C++ using the divide and conquer algorithm. I'm a novice programmer and I've gotten a little stuck. Let's say you begin your code with an array of distances, dis[4] = {dis1, dis2, dis3, dis4} Then I want to separate this array into...
  47. G

    C/C++ C++ Chemistry Library: Find the Solution

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  48. B

    C/C++ C++ Pointers: Solving "g is not defined" & "return" Meaning

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  49. N

    C/C++ Python or C++ for ChemE Major: Which is Most Useful?

    I'm a chemE major, entering my sophomore year. I have used python in physics classes, but that was minimal experience. I want to begin learning a language this summer; I have no other prior experience. My main interest is cryptography, but I don't think this will amount to anything other...
  50. A

    C/C++ Solve ODEs Backwards in Time with C++ Euler Method

    Hi Everybody I am beginner in c++ and I need your help please. I implemented euler method for solving simple ODEs (y' = x -y, y(0)=1)and it is forward in time(from t=0 to t=1) and it worked well, my question is : I want to run this code backward in time(t=1 to t=0) what i have to change in my...
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