Tag Archives: constructor

Bitesize Modern C++: std::initializer_list

Technical Consultant at Feabhas Ltd
Glennan is an embedded systems and software engineer with over 20 years experience, mostly in high-integrity systems for the defence and aerospace industry.

He specialises in C++, UML, software modelling, Systems Engineering and process development.
Glennan Carnie

An aggregate type in C++ is a type that can be initialised with a brace-enclosed list of initialisers. C++ contains three basic aggregate types, inherited from C:

arrays
structures
unions

Since one of the design goals of C++ was to emulate the behaviour of built-in types it seems reasonable that you should be able to initialise user-defined aggregate types (containers, etc.) in the same way.

A std::initializer_list is a template class that allows a user-defined type to become an aggregate type.

When initialiser list syntax is […]

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Bitesize Modern C++ : constexpr

Technical Consultant at Feabhas Ltd
Glennan is an embedded systems and software engineer with over 20 years experience, mostly in high-integrity systems for the defence and aerospace industry.

He specialises in C++, UML, software modelling, Systems Engineering and process development.
Glennan Carnie

A constant expression is an expression that can be evaluated at compile-time. The const qualifier gives a weak guarantee of a constant expression – a const-qualified type may not be changed after initialisation but that does not guarantee it will be initialised at compile-time. For example:

C++11 introduces a strong form of constant expression, constexpr, which also expands the capabilities of compile-time evaluation.

constexpr objects

A constexpr variable is essentially the same as qualifying the type as const with the additional requirement that […]

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Variadic templates

Technical Consultant at Feabhas Ltd
Glennan is an embedded systems and software engineer with over 20 years experience, mostly in high-integrity systems for the defence and aerospace industry.

He specialises in C++, UML, software modelling, Systems Engineering and process development.
Glennan Carnie

Introduction

In this article we’re going to look at a new feature of templates in C++11 – the concept of the variadic template.

Variadic templates allow us to create functions and classes, not only with generic types, but also a variable number of generic

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Template member functions

Technical Consultant at Feabhas Ltd
Glennan is an embedded systems and software engineer with over 20 years experience, mostly in high-integrity systems for the defence and aerospace industry.

He specialises in C++, UML, software modelling, Systems Engineering and process development.
Glennan Carnie

Introduction

Previously we’ve looked at template functions and we’ve looked at template classes. This time, let’s look at what happens when you combine

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Template classes

Technical Consultant at Feabhas Ltd
Glennan is an embedded systems and software engineer with over 20 years experience, mostly in high-integrity systems for the defence and aerospace industry.

He specialises in C++, UML, software modelling, Systems Engineering and process development.
Glennan Carnie

Introduction

Last time we looked at template functions, which introduced the concept of generic programming in C++.

This time let’s extend the idea of generic programming to

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The Rule of the Big Five

Technical Consultant at Feabhas Ltd
Glennan is an embedded systems and software engineer with over 20 years experience, mostly in high-integrity systems for the defence and aerospace industry.

He specialises in C++, UML, software modelling, Systems Engineering and process development.
Glennan Carnie

The dynamic creation and destruction of objects was always one of the bugbears of C. It requires the programmer to manually control the allocation, initialisation and deallocation of memory for the object. Because many C programmers weren’t educated in the potential problems (or were just plain lazy or delinquent in their programming) C got a reputation in some quarters for being an unsafe, memory-leaking language.

C++ improved matters significantly with an idiom known as RAII/RRID; more generically referred to as resource […]

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