homemade c89 code

i guess i’ve started taking it upon myself to educate a young cis lady about c programming. luckily she is using a mac.

on mac, you can open up your ‘Terminal.app’application and run:

$ echo "#!/bin/sh\

man -t $1 $2 | open -f -a System/Applications/Preview.app\

" > pages

$ chmod 755 pages

$ ./pages c89

to view a readily accessible pdf of the c89 compiler on Preview.app, and

$ ./pages 3 atof

to view a pdf for the function ‘atof()’ in the standard c89 header ‘stdlib.h’

( it also helps to de-‘man’ your command line interface a bit )

but here’s an example program i wrote as ‘greater.c’. :

#include<stdio.h>

#include<stdlib.h>

int main(const int argc, const char **argv){

  const double x = (*++argv != NULL ? atof(*argv) : (double)0);

  const double y = (*++argv != NULL ? atof(*argv) : (double)0);

  printf("%lf\n",(x > y ? x : y));

  return 0;

}