std::is_nothrow_move_constructible in C++ with Example Last Updated : 15 Jul, 2025 Comments Improve Suggest changes Like Article Like Report The std::is_nothrow_move_constructible template of C++ STL is present in the <type_traits> header file. The std::is_nothrow_move_constructible template of C++ STL is used to check whether the given type T T is move constructibe or not and this is known for not to throw any exception. It return the boolean value true if T is a move constructible type, Otherwise it return false.Header File: #include<type_traits> Template Class: template <class T> struct is_nothrow_move_constructible; Syntax: std::is_nothrow_move_constructible<T>::value Parameters: The template std::is_nothrow_move_constructible accepts a single parameter T(Trait class) to check whether T is a move constructible type or not.Return Value: This template returns a boolean variable as shown below: True: If the type T is a move constructible type.False: If the type T is not a move constructible type. Below is the program to illustrates the std::is_nothrow_default_constructible template in C/C++:Program: CPP // C++ program to illustrate // std::is_nothrow_move_constructible #include <bits/stdc++.h> #include <type_traits> using namespace std; // Declare structures struct B { }; struct A { A& operator=(A&) = delete; }; struct C { C(C&&) {} }; struct D { D(D&&) = delete; }; // Driver Code int main() { cout << boolalpha; // Check if int is no throw move // constructible or not cout << "int: " << is_nothrow_move_constructible<int>::value << endl; // Check if char is no throw move // constructible or not cout << "char: " << is_nothrow_move_constructible<char>::value << endl; // Check if float is no throw move // constructible or not cout << "float: " << is_nothrow_move_constructible<float>::value << endl; // Check if struct A is no throw // move constructible or not cout << "struct A is nothrow move constructible? " << is_nothrow_move_constructible<A>::value << endl; // Check if struct B is no throw // move constructible or not cout << "struct B is nothrow move constructible? " << is_nothrow_move_constructible<B>::value << endl; // Check if struct C is no throw // move constructible or not cout << "struct C is nothrow move constructible? " << is_nothrow_move_constructible<C>::value << endl; // Check if struct D is no throw // move constructible or not cout << "struct D is nothrow move constructible? " << is_nothrow_move_constructible<D>::value << endl; return 0; } Output: int: true char: true float: true struct A is nothrow move constructible? true struct B is nothrow move constructible? true struct C is nothrow move constructible? false struct D is nothrow move constructible? false Reference: https://cplusplus.com/reference/type_traits/is_nothrow_move_constructible/ Comment More infoAdvertise with us Next Article Introduction to C++ Programming Language B bansal_rtk_ Follow Improve Article Tags : Misc C++ CPP-Functions Practice Tags : CPPMisc Similar Reads C++ Programming Language C++ is a computer programming language developed by Bjarne Stroustrup as an extension of the C language. It is known for is fast speed, low level memory management and is often taught as first programming language. It provides:Hands-on application of different programming concepts.Similar syntax to 5 min read C++ OverviewIntroduction to C++ Programming LanguageC++ is a general-purpose programming language that was developed by Bjarne Stroustrup as an enhancement of the C language to add object-oriented paradigm. It is considered as a middle-level language as it combines features of both high-level and low-level languages. It has high level language featur 3 min read Features of C++C++ is a general-purpose programming language that was developed as an enhancement of the C language to include an object-oriented paradigm. It is an imperative and compiled language. C++ has a number of features, including:Object-Oriented ProgrammingMachine IndependentSimpleHigh-Level LanguagePopul 5 min read History of C++The C++ language is an object-oriented programming language & is a combination of both low-level & high-level language - a Middle-Level Language. The programming language was created, designed & developed by a Danish Computer Scientist - Bjarne Stroustrup at Bell Telephone Laboratories ( 7 min read Interesting Facts about C++C++ is a general-purpose, object-oriented programming language. It supports generic programming and low-level memory manipulation. Bjarne Stroustrup (Bell Labs) in 1979, introduced the C-With-Classes, and in 1983 with the C++. Here are some awesome facts about C++ that may interest you: The name of 2 min read Setting up C++ Development EnvironmentC++ runs on lots of platforms like Windows, Linux, Unix, Mac, etc. If you do not want to set up a local environment you can also use online IDEs for compiling your program.Using Online IDEIDE stands for an integrated development environment. IDE is a software application that provides facilities to 8 min read Difference between C and C++C++ is often viewed as a superset of C. 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C++ uses keywords for a specifying the components of the language, such as void, int, public, etc. They can't be used for a variable name, function name or an 2 min read Difference between Keyword and Identifier in CIn C, keywords and identifiers are basically the fundamental parts of the language used. Identifiers are the names that can be given to a variable, function or other entity while keywords are the reserved words that have predefined meaning in the language.The below table illustrates the primary diff 3 min read C++ Variables and ConstantsC++ VariablesIn C++, variable is a name given to a memory location. It is the basic unit of storage in a program. 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These operators are used to perform operations such as negation, incrementing or decrementing a variable, or checking the size of a variable. They provide a way to modify or manipulate the value of a single variable in 5 min read Bitwise Operators in CIn C, bitwise operators are used to perform operations directly on the binary representations of numbers. These operators work by manipulating individual bits (0s and 1s) in a number.The following 6 operators are bitwise operators (also known as bit operators as they work at the bit-level). They are 6 min read Assignment Operators in CIn C, assignment operators are used to assign values to variables. The left operand is the variable and the right operand is the value being assigned. 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Let's take a look at an example:C++#include <iostream> int main() { // Accessing cout from std namespace using scope // r 4 min read C++ Input/OutputBasic Input / Output in C++In C++, input and output are performed in the form of a sequence of bytes or more commonly known as streams.Input Stream: If the direction of flow of bytes is from the device (for example, Keyboard) to the main memory then this process is called input.Output Stream: If the direction of flow of bytes 5 min read cin in C++In C++, cin is an object of istream class that is used to accept the input from the standard input stream i.e. stdin which is by default associated with keyboard. The extraction operator (>>) is used along with cin to extract the data from the object and insert it to the given variable.Let's t 4 min read cout in C++In C++, cout is an object of the ostream class that is used to display output to the standard output device, usually the monitor. It is associated with the standard C output stream stdout. The insertion operator (<<) is used with cout to insert data into the output stream.Let's take a look at 2 min read Standard Error Stream Object - cerr in C++In C++, cerr is the standard error stream used to output the errors. It is an instance of the ostream class and is un-buffered, so it is used when we need to display the error message immediately and does not store the error message to display later. The 'c' in cerr refers to "character" and 'err' m 3 min read Manipulators in C++Manipulators are helping functions that can modify the input or output stream. They can be included in the I/O statement to alter the format parameters of a stream. They are defined inside <iomanip> and some are also defined inside <iostream> header file. For example, if we want to print 4 min read C++ Control StatementsDecision Making in C (if , if..else, Nested if, if-else-if )In C, programs can choose which part of the code to execute based on some condition. This ability is called decision making and the statements used for it are called conditional statements. These statements evaluate one or more conditions and make the decision whether to execute a block of code or n 7 min read C++ if StatementThe C++ if statement is the most simple decision-making statement. It is used to decide whether a certain statement or block of statements will be executed or not executed based on a certain condition. Let's take a look at an example:C++#include <iostream> using namespace std; int main() { int 3 min read C++ if else StatementThe if statement alone tells us that if a condition is true it will execute a block of statements and if the condition is false, it won’t. But what if we want to do something else if the condition is false. 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It is generally preferred over while and do-while loops in case the number of iterations is known beforehand.Let's take a look at an example:C++#include <bits/stdc++.h 6 min read Range-Based for Loop in C++In C++, the range-based for loop introduced in C++ 11 is a version of for loop that is able to iterate over a range. This range can be anything that is iteratable, such as arrays, strings and STL containers. It provides a more readable and concise syntax compared to traditional for loops.Let's take 3 min read C++ While LoopIn C++, the while loop is an entry-controlled loop that repeatedly executes a block of code as long as the given condition remains true. Unlike the for loop, while loop is used in situations where we do not know the exact number of iterations of the loop beforehand as the loop execution is terminate 3 min read C++ do while LoopIn C++, the do-while loop is an exit-controlled loop that repeatedly executes a block of code at least once and continues executing as long as a given condition remains true. Unlike the while loop, the do-while loop guarantees that the loop body will execute at least once, regardless of whether the 4 min read C++ FunctionsFunctions in C++A Function is a reusable block of code designed to perform a specific task. It helps break large programs into smaller, logical parts. Functions make code cleaner, easier to understand, and more maintainable.Just like in other languages, C++ functions can take inputs (called parameters), execute a b 8 min read return Statement in C++In C++, the return statement returns the flow of the execution to the function from where it is called. This statement does not mandatorily need any conditional statements. As soon as the statement is executed, the flow of the program stops immediately and returns the control from where it was calle 4 min read Parameter Passing Techniques in CIn C, passing values to a function means providing data to the function when it is called so that the function can use or manipulate that data. Here:Formal Parameters: Variables used in parameter list in a function declaration/definition as placeholders. Also called only parameters.Actual Parameters 3 min read Difference Between Call by Value and Call by Reference in CFunctions can be invoked in two ways: Call by Value or Call by Reference. These two ways are generally differentiated by the type of values passed to them as parameters.The following table lists the differences between the call-by-value and call-by-reference methods of parameter passing.Call By Valu 4 min read Default Arguments in C++A default argument is a value provided for a parameter in a function declaration that is automatically assigned by the compiler if no value is provided for those parameters in function call. If the value is passed for it, the default value is overwritten by the passed value.Example:C++#include <i 5 min read Inline Functions in C++In C++, inline functions provide a way to optimize the performance of the program by reducing the overhead related to a function call. When a function is specified as inline the whole code of the inline function is inserted or substituted at the point of its call during the compilation instead of us 6 min read Lambda Expression in C++C++ 11 introduced lambda expressions to allow inline functions which can be used for short snippets of code that are not going to be reused. Therefore, they do not require a name. They are mostly used in STL algorithms as callback functions.Example:C++#include <iostream> using namespace std; i 4 min read C++ Pointers and ReferencesPointers and References in C++In C++ pointers and references both are mechanisms used to deal with memory, memory address, and data in a program. Pointers are used to store the memory address of another variable whereas references are used to create an alias for an already existing variable. Pointers in C++ Pointers in C++ are a 5 min read C++ PointersA pointer is a special variable that holds the memory address of another variable, rather than storing a direct value itself. Pointers allow programs to access and manipulate data in memory efficiently, making them a key feature for system-level programming and dynamic memory management. When we acc 8 min read Dangling, Void , Null and Wild Pointers in CIn C programming pointers are used to manipulate memory addresses, to store the address of some variable or memory location. But certain situations and characteristics related to pointers become challenging in terms of memory safety and program behavior these include Dangling (when pointing to deall 6 min read Applications of Pointers in CPointers in C are variables that are used to store the memory address of another variable. Pointers allow us to efficiently manage the memory and hence optimize our program. In this article, we will discuss some of the major applications of pointers in C. Prerequisite: Pointers in C. C Pointers Appl 4 min read Understanding nullptr in C++Consider the following C++ program that shows problem with NULL (need of nullptr) CPP // C++ program to demonstrate problem with NULL #include <bits/stdc++.h> using namespace std; // function with integer argument void fun(int N) { cout << "fun(int)"; return;} // Overloaded fun 3 min read References in C++In C++, a reference works as an alias for an existing variable, providing an alternative name for it and allowing you to work with the original data directly.Example:C++#include <iostream> using namespace std; int main() { int x = 10; // ref is a reference to x. int& ref = x; // printing v 5 min read Can References Refer to Invalid Location in C++?Reference Variables: You can create a second name for a variable in C++, which you can use to read or edit the original data contained in that variable. While this may not sound appealing at first, declaring a reference and assigning it a variable allows you to treat the reference as if it were the 2 min read Pointers vs References in C++Prerequisite: Pointers, References C and C++ support pointers, which is different from most other programming languages such as Java, Python, Ruby, Perl and PHP as they only support references. But interestingly, C++, along with pointers, also supports references. On the surface, both references and 5 min read Passing By Pointer vs Passing By Reference in C++In C++, we can pass parameters to a function either by pointers or by reference. In both cases, we get the same result. So, what is the difference between Passing by Pointer and Passing by Reference in C++?Let's first understand what Passing by Pointer and Passing by Reference in C++ mean:Passing by 5 min read When do we pass arguments by pointer?In C, the pass-by pointer method allows users to pass the address of an argument to the function instead of the actual value. This allows programmers to change the actual data from the function and also improve the performance of the program. In C, variables are passed by pointer in the following ca 5 min read Like