Yet another pre-processor-to-victory post. Check the header in the source.
If we're going to use crazy header files, I want to see someone get the linux kernel to build and boot while including this: https://gist.github.com/aras-p/6224951
If we're going to use crazy header files, I want to see someone get the linux kernel to build and boot while including this: https://gist.github.com/aras-p/6224951
A long time ago, a friend who was studying mathematics at the time, approached me laughing hysterically and showed me a page in an "intro to C"-style book. It showed an example of how one would write a "get circumference of a circle" function. At the top of the code, there was a #define for the value of pi.
The text describing the code said something like this about why pi is #defined and not included directly in the expression:
"We define pi as a constant for two reasons: 1) it makes the expressions using it more readable 2) should the value of pi ever change, we will only have to change it in one place in the code"
Most remember 3.14159 which is way better than 22/7, but pi has an even better unusual rational approximation, 355/113 gets you two extra digits, it is accurate to one part in 12 million, or 0.000008% . So you have to go to 3.1415927 to beat it.
> For JPL's highest accuracy calculations, which are for interplanetary navigation, we use 3.141592653589793.
https://www.jpl.nasa.gov/edu/news/2016/3/16/how-many-decimal...
"It's easier to type $pi than 𝜋, especially if you don't have Unicode. And it will be easy to maintain the program in case the value of ever changes."
There is also a comment by Randal Schwartz in the comments section where he credits Tom Phoenix with that particular bit of humour.
https://www.forbes.com/sites/kionasmith/2018/02/05/indianas-...
"When I use a word," Humpty Dumpty said, in a rather scornful tone, "it means just what I choose it to mean - neither more nor less."
Very ugly, ill-defined, uncodified democracy. No one tells you when you vote, no one counts up the votes, there are no official results.
When you speak or communicate with someone else, you are voting with them. "I vote this word means X, for a poor/crude/coarse agreement of what X is the first place."
And this is propaganda at its finest. Evil doublespeak: say one thing, and it actually is another. Snuck in.
Fantastic.
#define ;
#define do
The most common place where this sort of thing occurs is the common idiom
#ifdef DEBUG
#define debug(...) realdebug(__VA_ARGS__)
#else
#define debug(...)
#endif
#define debug(...) ((void)0)