C programming notes
From Wiki at Neela Nurseries
Contents
^ Overview
^ Serial Port Use in C
- https://tldp.org/HOWTO/Serial-Programming-HOWTO/
- https://tldp.org/HOWTO/Serial-Programming-HOWTO/x115.html
Interesting article by Simon Tatham on co-routines and a couple ways of implementing them in C language; accessible good style of writing:
Quote from the article:
- <! -- not intended use for ul tag -->
"Any coding standard which insists on syntactic clarity at the expense of algorithmic clarity should be rewritten." - Simon Tatham
Floating point convert and notes on-line, Javascript converter:
^ C Pointers and dereference syntax
This section the beginning of references, links and personal notes on some of the most difficult and important C language constructs, often used in schedulers and RTOS implementations:
Arrays of strings and arrays of pointers to strings:
^ Simple C examples
Program 1 - use of C comma operator, a binary operator:
#include <stdio.h>
#include <stdlib.h>
// Compile with:
//
// $ gcc -Wall main.c
//
// As of 2022-06-09 Builds with 'gcc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0'
int main(int argc, char *argv[])
{
int z = 3;
int y[(z++, (z + 1))];
y[0] = 1;
if ( z == y[0] ) { }
#define SIZE_OF_160_BYTES (160)
char lbuf[SIZE_OF_160_BYTES] = { 0 };
snprintf(lbuf, SIZE_OF_160_BYTES, "2022-06-09 main.c test of C comma operator\narray y[] has size of %lu\n",
sizeof(y));
printf("%s", lbuf);
return 0;
}
^ References
