C++ Archives - Page 59 of 68

How to automatically generate a stacktrace when my program crashes

I am working on Linux with the GCC compiler. When my C++ program crashes I would like it to automatically generate a stacktrace. ...

April 28, 2022
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When should I write the keyword ‘inline’ for a function/method?

When should I write the keyword inline for a function/method in C++? After seeing some answers, some related questions: When should I not ...

April 28, 2022
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Read whole ASCII file into C++ std::string [duplicate]

This question already has answers here: How do I read an entire file into a std::string in C++? (22 answers) Closed 5 years ...

April 28, 2022
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Difference of keywords ‘typename’ and ‘class’ in templates?

For templates I have seen both declarations: template < typename T > template < class T > What’s the difference? And what exactly ...

April 28, 2022
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How do I achieve the theoretical maximum of 4 FLOPs per cycle?

How can the theoretical peak performance of 4 floating point operations (double precision) per cycle be achieved on a modern x86-64 Intel CPU? ...

April 28, 2022
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What is the easiest way to initialize a std::vector with hardcoded elements?

I can create an array and initialize it like this: int a...

April 28, 2022
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.h or .hpp for your class definitions

I’ve always used a *.h file for my class definitions, but after reading some boost library code, I realised they all use *.hpp. ...

April 28, 2022
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What is meant with “const” at end of function declaration? [duplicate]

This question already has answers here: Meaning of ‘const’ last in a function declaration of a class? (12 answers) Closed 2 years ago. ...

April 27, 2022
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How to determine CPU and memory consumption from inside a process

I once had the task of determining the following performance parameters from inside a running application: Total virtual memory available Virtual memory currently ...

April 27, 2022
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Can code that is valid in both C and C++ produce different behavior when compiled in each language?

C and C++ have many differences, and not all valid C code is valid C++ code. (By “valid” I mean standard code with ...

April 27, 2022
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