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Can C++ compilers cache the result of constexpr functions?

C Compiler Optimization Unveiling the Mystery of constexpr Function Caching The constexpr keyword in C empowers developers to write functions that can be evalua

2 min read 07-10-2024 72
Can C++ compilers cache the result of constexpr functions?
Can C++ compilers cache the result of constexpr functions?

Passing a string literal to a template char array parameter

Passing String Literals to Template Char Array Parameters A C Conundrum Have you ever encountered a situation where you need to pass a string literal to a funct

3 min read 05-10-2024 58
Passing a string literal to a template char array parameter
Passing a string literal to a template char array parameter

Equal not-null pointers to distinct variables in C++

Why Comparing Equal Non Null Pointers in C Doesnt Guarantee Distinct Variables Lets dive into a common misconception in C programming the assumption that compar

2 min read 05-10-2024 69
Equal not-null pointers to distinct variables in C++
Equal not-null pointers to distinct variables in C++

Why is adding another simple constructor make a simple class not a literal type anymore?

Understanding Literal Types in Type Script The Impact of Adding Another Constructor When working with Type Script developers often encounter the concept of lite

2 min read 29-09-2024 58
Why is adding another simple constructor make a simple class not a literal type anymore?
Why is adding another simple constructor make a simple class not a literal type anymore?

Errors computing factorial in C++ constant expression

Understanding Errors in Computing Factorial in C Constant Expression Computing the factorial of a number is a common task in programming particularly in mathema

2 min read 29-09-2024 76
Errors computing factorial in C++ constant expression
Errors computing factorial in C++ constant expression

How to pass constexpr to constructor?

How to Pass constexpr to a Constructor in C In modern C utilizing constexpr allows us to perform computations at compile time enhancing performance and enabling

2 min read 16-09-2024 75
How to pass constexpr to constructor?
How to pass constexpr to constructor?

Passing a lambda with capture into another lambda causing the capture to always happen (?)

Understanding Capturing Lambdas in C In C lambdas are a powerful feature that allows for the creation of anonymous functions However when passing a lambda that

2 min read 15-09-2024 55
Passing a lambda with capture into another lambda causing the capture to always happen (?)
Passing a lambda with capture into another lambda causing the capture to always happen (?)

Why is floating-point zero-divide forbidden in a constexpr?

Understanding Why Floating Point Zero Divide is Forbidden in a constexpr In modern C programming constexpr functions are a powerful feature that enables compile

2 min read 14-09-2024 69
Why is floating-point zero-divide forbidden in a constexpr?
Why is floating-point zero-divide forbidden in a constexpr?

variable conditionally declared constexpr according to its initialization expression

Declaring Variables as constexpr Based on Initialization A Deep Dive The constexpr keyword in C allows you to declare variables that are compile time constants

2 min read 13-09-2024 65
variable conditionally declared constexpr according to its initialization expression
variable conditionally declared constexpr according to its initialization expression

How can I obtain a C++ expression's type, at compile time (i.e. constexpr'ly)?

Unveiling Type Names at Compile Time in C A Deep Dive In the world of C knowing the exact type of an expression at compile time can be incredibly valuable for o

3 min read 06-09-2024 78
How can I obtain a C++ expression's type, at compile time (i.e. constexpr'ly)?
How can I obtain a C++ expression's type, at compile time (i.e. constexpr'ly)?

Equivalent ternary operator for constexpr if?

The Missing constexpr Ternary Operator A Deep Dive into C 17 In the realm of C 17 constexpr functions and constexpr if statements have brought compile time comp

2 min read 06-09-2024 71
Equivalent ternary operator for constexpr if?
Equivalent ternary operator for constexpr if?

Is there a performance benefit to using c++'s std(::ranges)::uninitialized_... algorithms, and is it worth not having constexpr?

Unraveling the Mystery std ranges uninitialized copy vs std ranges copy When working with raw memory in C understanding the nuances of memory management is cruc

2 min read 31-08-2024 70
Is there a performance benefit to using c++'s std(::ranges)::uninitialized_... algorithms, and is it worth not having constexpr?
Is there a performance benefit to using c++'s std(::ranges)::uninitialized_... algorithms, and is it worth not having constexpr?

C++23 constexpr size limitations? Iterating through 0x4000 = ok, to 0x5000 = not a constant expression

C 23 constexpr Size Limitations Why Your Loop Might Not Be a Constant Expression In the world of C constexpr we strive to perform computations at compile time T

3 min read 30-08-2024 54
C++23 constexpr size limitations? Iterating through 0x4000 = ok, to 0x5000 = not a constant expression
C++23 constexpr size limitations? Iterating through 0x4000 = ok, to 0x5000 = not a constant expression

get constexpr variable from a lambda function is fine , but compile fail (Visual C++) and fine (gcc) when such statement is in a new lambda

Unraveling the Mystery of Constexpr Lambdas and Visual C This article explores a curious behavior observed when using constexpr variables within nested lambda f

2 min read 30-08-2024 52
get constexpr variable from a lambda function is fine , but compile fail (Visual C++) and fine (gcc) when such statement is in a new lambda
get constexpr variable from a lambda function is fine , but compile fail (Visual C++) and fine (gcc) when such statement is in a new lambda

In GCC, inside a lambda, I can get constexpr variable from a non-constexpr template lambda, but not in Visual C++

Understanding Constexpr Lambdas and Compiler Differences A Guide for GCC and Visual C In the world of C lambdas are a powerful tool for creating concise inline

3 min read 30-08-2024 61
In GCC, inside a lambda, I can get constexpr variable from a non-constexpr template lambda, but not in Visual C++
In GCC, inside a lambda, I can get constexpr variable from a non-constexpr template lambda, but not in Visual C++

Can you call a static constexpr member function at compile time?

Calling Static constexpr Member Functions at Compile Time A Deep Dive The ability to call static constexpr member functions at compile time is a powerful featur

2 min read 29-08-2024 56
Can you call a static constexpr member function at compile time?
Can you call a static constexpr member function at compile time?

Define macro to another macro : a hack to re-declare constexpr variable

A C Hack Re Declaring constexpr Variables Using Macros This article explores a clever C hack that allows for re declaring constexpr variables using macros offer

2 min read 28-08-2024 53
Define macro to another macro : a hack to re-declare constexpr variable
Define macro to another macro : a hack to re-declare constexpr variable

Error unknown type name 'constexpr' during make in mac os x

Error unknown type name constexpr during make in mac OS This error indicates that your compiler clang doesnt recognize the keyword constexpr This usually points

2 min read 28-08-2024 46
Error unknown type name 'constexpr' during make in mac os x
Error unknown type name 'constexpr' during make in mac os x

How does C++ handle constexpr evaluation for non-static member function pointers on runtime objects?

C Unraveling constexpr Evaluation with Non Static Member Function Pointers The C standards constexpr keyword is designed to enable compile time evaluation of ex

3 min read 27-08-2024 61
How does C++ handle constexpr evaluation for non-static member function pointers on runtime objects?
How does C++ handle constexpr evaluation for non-static member function pointers on runtime objects?