EASYTUTORGUIDEC++ • C++23 / ISO/IEC 14882:2024

Coroutines

C++ Chapter 50 of 60. Beginner-to-advanced teaching with a code example for every topic.

5 topics5 code examples10 Q&A

50.1 Coroutines Fundamentals 50.2 Coroutines Syntax and Structure 50.3 Coroutines Practical Example 50.4 Coroutines Common Mistakes 50.5 Coroutines Best Practices

50.1 Coroutines Fundamentals

Coroutines Fundamentals is part of Coroutines. Learn what the construct does, the syntax it requires, how data moves through it, and the mistakes that can make the program incorrect or unsafe.

Why it matters

Use this feature when it makes the program clearer, safer, easier to maintain, or more efficient. Start with a small example before using it in a larger application.

Code example

#include <iostream>
int main(){ /* Coroutines Fundamentals */ std::cout<<"C++ example\n"; }

Step-by-step

Read the declarations and identify each value or object.
Follow execution from the first statement to the last.
Predict the output before running the example.
Run or compile it using the toolchain for this course.
Change one input and explain why the new result changes.

Expected result

The example should demonstrate Coroutines Fundamentals with a small, inspectable result. For platform-dependent or advanced examples, focus on the API pattern and verify the exact environment requirements.

Common mistakes

Common mistakes include using the feature before understanding lifetime/scope, ignoring errors, assuming conversions are harmless, or writing code that works only for one happy-path input.

Practice

Rewrite the example with different data. Add one edge case, predict the result, then test it. Explain the feature in your own words without looking at the lesson.

50.2 Coroutines Syntax and Structure

Coroutines Syntax and Structure is part of Coroutines. Learn what the construct does, the syntax it requires, how data moves through it, and the mistakes that can make the program incorrect or unsafe.

Why it matters

Use this feature when it makes the program clearer, safer, easier to maintain, or more efficient. Start with a small example before using it in a larger application.

Code example

#include <iostream>
int main(){ /* Coroutines Syntax and Structure */ std::cout<<"C++ example\n"; }

Step-by-step

Read the declarations and identify each value or object.
Follow execution from the first statement to the last.
Predict the output before running the example.
Run or compile it using the toolchain for this course.
Change one input and explain why the new result changes.

Expected result

The example should demonstrate Coroutines Syntax and Structure with a small, inspectable result. For platform-dependent or advanced examples, focus on the API pattern and verify the exact environment requirements.

Common mistakes

Common mistakes include using the feature before understanding lifetime/scope, ignoring errors, assuming conversions are harmless, or writing code that works only for one happy-path input.

Practice

Rewrite the example with different data. Add one edge case, predict the result, then test it. Explain the feature in your own words without looking at the lesson.

50.3 Coroutines Practical Example

Coroutines Practical Example is part of Coroutines. Learn what the construct does, the syntax it requires, how data moves through it, and the mistakes that can make the program incorrect or unsafe.

Why it matters

Use this feature when it makes the program clearer, safer, easier to maintain, or more efficient. Start with a small example before using it in a larger application.

Code example

#include <iostream>
int main(){ /* Coroutines Practical Example */ std::cout<<"C++ example\n"; }

Step-by-step

Read the declarations and identify each value or object.
Follow execution from the first statement to the last.
Predict the output before running the example.
Run or compile it using the toolchain for this course.
Change one input and explain why the new result changes.

Expected result

The example should demonstrate Coroutines Practical Example with a small, inspectable result. For platform-dependent or advanced examples, focus on the API pattern and verify the exact environment requirements.

Common mistakes

Common mistakes include using the feature before understanding lifetime/scope, ignoring errors, assuming conversions are harmless, or writing code that works only for one happy-path input.

Practice

Rewrite the example with different data. Add one edge case, predict the result, then test it. Explain the feature in your own words without looking at the lesson.

50.4 Coroutines Common Mistakes

Coroutines Common Mistakes is part of Coroutines. Learn what the construct does, the syntax it requires, how data moves through it, and the mistakes that can make the program incorrect or unsafe.

Why it matters

Use this feature when it makes the program clearer, safer, easier to maintain, or more efficient. Start with a small example before using it in a larger application.

Code example

#include <iostream>
int main(){ /* Coroutines Common Mistakes */ std::cout<<"C++ example\n"; }

Step-by-step

Read the declarations and identify each value or object.
Follow execution from the first statement to the last.
Predict the output before running the example.
Run or compile it using the toolchain for this course.
Change one input and explain why the new result changes.

Expected result

The example should demonstrate Coroutines Common Mistakes with a small, inspectable result. For platform-dependent or advanced examples, focus on the API pattern and verify the exact environment requirements.

Common mistakes

Common mistakes include using the feature before understanding lifetime/scope, ignoring errors, assuming conversions are harmless, or writing code that works only for one happy-path input.

Practice

Rewrite the example with different data. Add one edge case, predict the result, then test it. Explain the feature in your own words without looking at the lesson.

50.5 Coroutines Best Practices

Coroutines Best Practices is part of Coroutines. Learn what the construct does, the syntax it requires, how data moves through it, and the mistakes that can make the program incorrect or unsafe.

Why it matters

Use this feature when it makes the program clearer, safer, easier to maintain, or more efficient. Start with a small example before using it in a larger application.

Code example

#include <iostream>
int main(){ /* Coroutines Best Practices */ std::cout<<"C++ example\n"; }

Step-by-step

Read the declarations and identify each value or object.
Follow execution from the first statement to the last.
Predict the output before running the example.
Run or compile it using the toolchain for this course.
Change one input and explain why the new result changes.

Expected result

The example should demonstrate Coroutines Best Practices with a small, inspectable result. For platform-dependent or advanced examples, focus on the API pattern and verify the exact environment requirements.

Common mistakes

Common mistakes include using the feature before understanding lifetime/scope, ignoring errors, assuming conversions are harmless, or writing code that works only for one happy-path input.

Practice

Rewrite the example with different data. Add one edge case, predict the result, then test it. Explain the feature in your own words without looking at the lesson.