metaprogramming


Remove a const qualifier from a variable in D


I want to create a non-const copy of a variable. I am doing this inside a templated function, which has an in ref input, so the type (T) has the const set. I see a ConstOf function in https://dlang.org/phobos/std_traits.html but I cannot find an inverse so I can get a non-const type from T.
You might be interested in
std.traits.Unqual.
Note that this gives the type with all qualifiers removed, not just const.
If you want to remove all type qualifiers from a variable you can simply do cast() variable which will result in just the base type without any const/immutable/etc.
However beware that this will result in undefined behaviour and should be avoided!
See also: https://dlang.org/spec/const3.html#removing_with_cast

Related Links

Nim reflect on type's field types at compile-time
Save variables to file at runtime
In Julia, is it possible to pass values for evaluation in an Expr object without using global variables?
Metaprogramming in Julia — Splice integer into variable name
What's the difference between `use` and `#before_compile`?
How to define functions based on attribute to elixir?
Remove a const qualifier from a variable in D
Meta-modeling crud FROM/JOIN/WHERE statement fragments for higher-level analysis
Elixir: eval'ing code in module context using Code.eval_quoted/3
What is Declarative Meta-Programming?
Reconsolidate protocols in Elixir 1.2 or higher
Inserting an AST into a quote do end block without unquoting it
Transform quoted elixir code to a code string
Pattern matching benchmarking : Compiletime lookup vs Runtime lookup in D
Meta construction capabilities?
How to manipulate the value of variables based on an array of symbols in Julia?

Categories

HOME
django
beautifulsoup
gdb
grafana
soa
permissions
dojo
python-multithreading
odoo-8
augeas
openstreetmap
appcelerator-studio
text-mining
comsol
enterprise-architect
plink
flatpak
mapstruct
sse
undertow
cgbitmapcontext
react-toolbox
joptionpane
dynamically-generated
xunit
data.stackexchange.com
interbase
fable-f#
android-maps
firebase-analytics
quantlib
magento-1.8
mockjax
quickfixj
playstation-portable
sharding
arduino-ide
roblox
dm-script
nohup
projects-and-solutions
opensmpp
wmp
ssrs-2014
http-request
placeholder
importerror
vaadin-charts
user-defined-fields
mongotemplate
static-cast
semantic-logging
java-bytecode-asm
flex4.6
uicolor
jquery-jscrollpane
android-dateutils
vorpal.js
java-money
vigenere
ess
django-urls
sony-lifelog-api
mod-proxy
eoferror
jdk1.7
omnifaces
ms-access-2000
mraid
j-security-check
pseudo-class
structuremap3
machine-instruction
insight.database
verold
grails-domain-class
mutual-authentication
authlogic
syndicationfeed
openargs
inputmismatchexception
stacky
panda3d
veracity
pyunit
appjs
google-maps-mobile
gobject-introspection
massive
objective-j
uideviceorientation
updatesourcetrigger
aspmenu
application-verifier
cfwindow
murmurhash
spread
data-mapping
complex-event-processing
great-circle

Resources

Mobile Apps Dev
Database Users
javascript
java
csharp
php
android
MS Developer
developer works
python
ios
c
html
jquery
RDBMS discuss
Cloud Virtualization
Database Dev&Adm
javascript
java
csharp
php
python
android
jquery
ruby
ios
html
Mobile App
Mobile App
Mobile App