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What is c++ used for? | Top Uses of C++ programming language
The most straightforward answer to this question is: The question is wrong! Yes! The question should be: What C++ is NOT used for! I agree C++ is an old language now, and many languages, like JAVA, Python, etc. have come up. But, unfortunately, no programming language can ever replace C++. C++ has extensive uses in real-life. Anywhere…
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Fibonacci sequence c++
Fibonacci Sequence c++ is a number sequence which created by sum of previous two numbers. First two number of series are 0 and 1. And then using these two number Fibonacci series is create like 0, 1, (0+1)=1, (1+1)=2, (2+1)=3, (2+3)=5 …etc Displaying Fibonacci Series in C++ ( without recursion) #include<iostream> using namespace std; void…
C++ Map [Learn by Example]
C++ map is part of Standard Template Library (STL). It is type of Associative container. Map in c++ is used to store unique key and it’s value in data structure. But if you want to store non-unique key value then you can use Multi Map in c++. Let us first understand in detail what is…
how to copy paste in turbo c++ ?
There are many different C++ IDE are available but still many students are using Turbo c++ for learning c/c++ programming languages. During using Turbo c++ if you are beginner you will be confuse for how to copy and paste in turbo c++ or if you have already copy some content and you want to paste…
return 0 c++
There are two different scenario return statement is used inside c++ programming. We can use return 0 c++ inside main() function or other user defined functions also. But both have different meanings. return 0 c++ used inside Main functionreturn 0 c++ used inside other user defined function What is meaning of return 0 and return…
c++ expected a declaration [ SOLVED]
When any function or statement is not in scope or we have used wrong syntax then possibly you will get error for c++ expected a declaration in your code. Main reasons for errors are: Incorrect use/declaration inside namespaceStatements are added out of scopeRequired statement need to add inside main/function Solution-1 | Expected a declaration -…
c++ cannot open source file “errno.h” [SOLVED]
Normally you will face c++ cannot open source file “errno.h” in MS Visual Studio c++ projects. These are some solutions to remove opening errors for “errno.h” file. I got the errors to go away by installing the Windows Universal CRT SDK component, which adds support for legacy Windows SDKs. You can install this using the…
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[SOLVED] c++ a nonstatic member reference must be relative to a specific object
In c++ class if we want to call any function then we can call it by creating object. But if function is static, then we can call by ClassName::FunctionName. If non-static function we are call by class::function then it will give error of c++ a nonstatic member reference must be relative to a specific object.…
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Top 10 C++ IDE – you must try once
As a new c++ developer we always get question for best ide for c++. Here we have given few most popular best c++ ide. If you are searching best c++ ide linux or best c++ ide for windows 10 then below detail will be useful for you. 1) Microsoft Visual Studio (Visual C++) URL :…
c++ incomplete type is not allowed [SOLVED]
In c++ incomplete type is not allowed error occurs when compiler detect any identifier that is of known data type but definition of it’s is not seen fully. Below are general errors in c++: incomplete type is not allowedstringstream incomplete type is not allowed ifstream incomplete type is not allowed Always check below point for…
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system pause c++
In c++ development system(“pause”) is used to execute pause command of Operating system inside program. So it will ask user to press any key to continue. If we don’t want to use system pause c++ then we can use cin.get() which also wait for user to press any key. #include<iostream> using namespace std; int main()…
c++ expression must be a modifiable lvalue [SOLVED]
Normally these type of c++ error occurs in conditional statments. For any conditional expression if we are using assignment operator(=) in-stand of comparison (==) then mostly c++ expression must be a modifiable lvalue error occurs. 1) c++ expression must be a modifiable lvalue (Scenario-1) #include <iostream> using namespace std; int main() { int A =…
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c++ identifier is undefined [SOLVED]
If you are new to c++ programming language then possibly you will come across c++ identifier is undefined errors. You might get identifier is undefined error in multiple ways, below 4 different possible errors for identifier is undefined in c++. Possible different errors: c++ identifier is undefinedc++ identifier cout is undefinedc++ identifier string is undefinedidentifier…
c++ cannot open source file [SOLVED]
In c++ project when you have included header file, but inside project we are not able to access that header file then generally we get error for cannot open source file. For fixing this error check that included file is available in project include path or not. cannot open source file visual studio C++ Solution-1…
c++ expression must have class type [SOLVED]
In c++ whenever you are calling any function of class then there might be possibility that you came across error for c++ expression must have class type. For resolving expression must have class type error you need to check that if you have class pointer then you need to use -> and if you have…
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c++ expected a ‘;’ [SOLVED]
When we forgot to add semicolon in c++ program then generally we get error like c++ expected a ‘;’. Whenever you get similar error in c++ then you have to check mention line number that semicolon is added or missing. 1. c++ expected a ‘;’ [Scenario-1] #include <iostream> using namespace std; int main() { cout<<“Hello…
How to square a number in c++ ?
In c++ logic when we require square of a number then there are multiple solutions are available for it. You can use Power function of c++ pow(Base,Power)Simple multiplication of number two timeIf we want to make square without multiplication then we can achieve it using for loop or while loop. How to square a number…
How to divide in c++ ?
In c++ there are different possible solutions for dividing two number or variable in decimal or floating values. Also in embedded domain many time bit-wise right shift operator also used. So if you are finding answer of How to divide in c++ then this is perfect article for you to learning different solutions. 1. How…
How to convert int to string c++ ? [SOLVED]
Many time during implementing c++ logic or displaying string we require to convert int to string in c++. We have given different solution for c++ int to string conversion. Here we have provided solutions using std::to_string(), using std::ostringstream and using custom function to convert int to string in c++. 1) Int to string c++ (…
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No matching function for call to [SOLVED]
When we are calling some function but there is not matching function definition argument, then we get compilation error as No matching function for call to c++. To resolve this error, We need to pass appropriate matching argument during function call. Or need to create different overloaded function with different arguments. Check function calling and…
Undefined reference to main c++ [SOLVED]
As a beginner c++ developer , you probably might get error like undefined reference to `main’. Generally this error occurs when we forgot not define main() function in program. In any c++ program main() function is necessary to start a program. So whenever you create any class then do not forgot to add main function…
iso c++ forbids comparison between pointer and integer [SOLVED]
Many time during running c++ program you get comparison errors. Sometimes it will be iso c++ forbids comparison between pointer and integer or sometimes you will get iso c++ forbids comparison between pointer and integer [-fpermissive]. Here we will see when these type of c++ compiler error occurs and how to resolve these iso c++…
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How to get the length of a string in c++ ?
There are different ways to calculate string length c++. Here we will explain all possible solutions to calculate string length in c++. String value end with null or \0 character. So it can also useful for c++ string length calculation. 1. string length c++ using string::size() method #include <iostream> #include <string.h> using namespace std; int…
How to use showpoint c++ ?
What is showpoint c++ ? It basically set formatting flag for stream in str. Showpoint in c++ is used for displaying string value based on precision. If precision is 2 then value=1 will be display as 1.0 ; so whenever in c++ program we want to display string based on precision we have to use…
How to use “new line c++” ?
During writing C++ console application or printing any string we require new line display in output. There are different methods to display new line c++. 1) Using “\n” for new line c++ #include <iostream> using namespace std; int main() { cout << “Welcome to MrCodeHunter!! \n”; cout << “This is new line in c++”; return…
How to clear screen in c++ ?
Mainly when we are working with console application in C/C++ we come across some scenario where we need clear screen using C++ or C programing language. There are many different ways available for c++ clear screen. C++ clear screen in turbo C++ compiler In Turbo c++ compiler you can use clrscr (); for clear screen.…
Java vs C++
JAVA vs C++ Which OOPS-based programming language is better – C++ or JAVA?This is one of the most confusing and popular doubts of programmers. Java and C++ both follow OOP’s concepts. So, let us first understand what OOPs is. OOP stands for Object-Oriented Programming. It is a concept that supports and concentrates on doing a…
Difference between C and C++ | C vs C++
C Vs. C++ As we all know, both C and C++ are significant programming languages. But do you really know what exactly makes the difference between these two languages? Ride on! Let us check it out. Basic Knowledge about C and C++ languages Before knowing what makes the differences between these two languages, let’s first…
How long does it take to learn c++?
About C++ Programming:- C++ is a general-purpose programming language that was designed to incorporate object-oriented concepts as an improvement of the C language. It’s a compiled language and an imperative language. If you are new to language you will get initial question that How long does it take to learn c++ ? C++ is a…
How to print vector in c++?
Vector in c++ is like a dynamic array, but it has the ability to resize whenever we are adding or deleting elements from vector. Vector is a type of Sequence container. Containers hold data of the same data types. Apart from sequence containers, there are different types of containers available in vector. If we check…
What is c++ used for? | Top Uses of C++ programming language
The most straightforward answer to this question is: The question is wrong! Yes! The question should be: What C++ is NOT used for! I agree C++ is an old language now, and many languages, like JAVA, Python, etc. have come up. But, unfortunately, no programming language can ever replace C++. C++ has extensive uses in real-life. Anywhere…
Continue Reading What is c++ used for? | Top Uses of C++ programming language
How to convert C++ char to Int ? [SOLVED]
During writing logic in C++, many times we come across where we require to convert character to an Integer value. We have collected different methods that used to convert char to int C++. 1) Convert C++ char to Int using subtraction of ‘0’ ASCII value. char chDigit = ‘5’; // By substracting character ConvertedValue =…