c preprocessor - Is there a good reason for always enclosing a define ...
#define _add_penguin(a) penguin ## a #define add_penguin(a) _add_penguin(a) #define WIDTH (100) #define HEIGHT 200 add_penguin(HEIGHT) // expands to penguin200 add_penguin(WIDTH) // …
What is the scope of a #define? - Stack Overflow
Jul 6, 2016 · What is the scope of a #define? I have a question regarding the scope of a #define for C/C++ and am trying to bet understand the preprocessor. Let's say I have a project containing …
c# - How do you use #define? - Stack Overflow
Oct 30, 2013 · 8 #define is used to define compile-time constants that you can use with #if to include or exclude bits of code.
What's the difference in practice between inline and #define?
Nov 27, 2015 · Macros (created with #define) are always replaced as written, and can have double-evaluation problems. inline on the other hand, is purely advisory - the compiler is free to ignore it. …
constants - PHP | define () vs. const - Stack Overflow
The fundamental difference between those two ways is that const defines constants at compile time, whereas define defines them at run time. This causes most of const 's disadvantages. Some …
generics - what is #define equivalent in VHDL - Stack Overflow
what is the equivalent of #define, #ifdef and #ifndef in VHDL? I want to use generics as #define, and change the design according to them. as a simple example: define a string generic and use it to …
c - How do I concatenate #define value? - Stack Overflow
Mar 11, 2014 · You'll need to complete a few actions and gain 15 reputation points before being able to upvote. Upvoting indicates when questions and answers are useful. What's reputation and how do I …
Why do most C developers use define instead of const?
Mar 4, 2017 · #define simply substitutes a name with its value. Furthermore, a #define 'd constant may be used in the preprocessor: you can use it with #ifdef to do conditional compilation based on its …
How to declare variable and use it in the same Oracle SQL script?
I want to write reusable code and need to declare some variables at the beginning and reuse them in the script, such as: DEFINE stupidvar = 'stupidvarcontent'; SELECT stupiddata FROM stupidtable ...
jquery - define is not defined Javascript Node - Stack Overflow
Feb 11, 2015 · I am trying to run a Javascript file with Node to post blog updates to Tumblr. So far in my main.js file I have this: // Tumblr Information var tumblr = require('./vendor/tumblr'); tumblr.request(