Search results
- Dictionarydirective/dɪˈrɛktɪv/
noun
- 1. an official or authoritative instruction: "a new EC directive"
adjective
- 1. involving the management or guidance of operations: "the authority is seeking a directive role in energy policy"
Powered by Oxford Dictionaries
Nov 27, 2015 · in the case of a #define directive the preprocessor does simple text based substitution. For example if you had the code. #define PI 3.14159f float circum = diameter*PI; the preprocessor would turn it into: float circum = diameter* 3.14159; by simply replacing the instances of PI with the corresponding text.
Jun 8, 2011 · #define MY_MACRO printf( \ "I like %d types of cheese\n", \ 5 \ ) But you cannot do that with your first example. You cannot split tokens like that; the << left-shift operator must always be written without any separating whitespace, otherwise it would be interpreted as two less-than operators.
#define is a preprocessor directive - it just makes simple text substitutions at compile time - only the compilation unit and any #included files will see a #define. – Paul R Commented May 9, 2012 at 9:02
Mar 28, 2018 · Most compilers will allow you to define a macro from the command line (e.g. g++ -DDEBUG something.cpp), but you can also just put a define in your code like so: #define DEBUG Some resources: Wikipedia article; C++ specific site; Documentation on GCC's preprocessor; Microsoft reference; C specific site (I don't think it's different from the C++ ...
Sep 27, 2008 · Use #define OSsymbol and #ifdef OSsymbol where OSsymbol is a #define'able symbol identifying your target OS. Typically you would include a central header file defining the selected OS symbol and use OS-specific include and library directories to compile and build.
Apr 2, 2012 · #define XYZ public class FooTests { [Test] public void BarShouldDoSomethingCool() { var subject = new Foo(); subject.Bar(); // assert something cool happened } } Without the #define directive, the method would not have been called in the unit tests, resulting in either inconclusive or failing tests.
Is there a way to do the following preprocessor directives in Python? #if DEBUG < do some code > #else < do some other code > #endif
Sep 20, 2021 · How to define and use directives on vue3 composition api with the new syntactic sugar in SFC <script setup> format? With options API it used to be like this import click_outside from "@/
May 20, 2015 · As Ron Beyer points out, a directive defined in a file exists only for that file. Project level - Right click in the project in Solution Explorer, select Properties, then the Build tab, then look at Conditional compilation symbols. Then one can define several comma-separated symbols there such as: FLAG,FOO,BAR. Note that this symbols list is ...
Jul 25, 2019 · The cost of opening a file, discarding all its contents, and closing it over and over might not sound like much, but for a large header included transitively by hundreds of other headers (e.g. windows.h, the low-level stuff providing simple type definitions like stdint.h, types.h, etc.), the difference between opening it exactly once per source file and opening it a hundred times (where only ...
