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@Earnestly
Earnestly / c99_ub_list.rst
Last active May 1, 2025 14:29
C99 List of Undefined Behavior (193 Cases)

C99 List of Undefined Behavior

From N1256: (See http://port70.net/~nsz/c/c99/n1256.html#J.2)

  • A "shall" or "shall not" requirement that appears outside of a constraint is violated (clause 4).
  • A nonempty source file does not end in a new-line character which is not immediately preceded by a backslash character or ends in a partial preprocessing token or comment (5.1.1.2).
  • Token concatenation produces a character sequence matching the syntax of a universal character name (5.1.1.2).
  • A program in a hosted environment does not define a function named main using one of the specified forms (5.1.2.2.1).
  • A character not in the basic source character set is encountered in a source file, except in an identifier, a character constant, a string literal, a header name, a comment, or a preprocessing token that is never converted to a token (5.2.1).
  • An identifier, comment, string literal, character constant, or header name contains an invalid multibyte character or does not
@jacurtis
jacurtis / regex.md
Last active January 16, 2025 23:48
Most Useful Regex's

Useful Regular Expressions

These are the most useful Regular Expressions that I find myself using on a regular basis


URLs

Test to see if a string is a valid website address or not.

All URLs
@magicoli
magicoli / copy-from-time-machine.sh
Last active April 18, 2023 19:31 — forked from vjt/copy-from-time-machine.sh
Copy data from a Time Machine volume mounted on a Linux box.
#!/bin/bash
#
# Copy data from a Time Machine volume mounted on a Linux box.
#
# Usage: copy-from-time-machine.sh <source> <target>
#
# source: the source directory inside a time machine backup
# target: the target directory in which to copy the reconstructed
# directory trees. Created if it does not exists.
#
@acapola
acapola / aes-ni.c
Created August 31, 2015 14:42
AES128 how-to using GCC and Intel AES-NI
#include <stdint.h> //for int8_t
#include <string.h> //for memcmp
#include <wmmintrin.h> //for intrinsics for AES-NI
//compile using gcc and following arguments: -g;-O0;-Wall;-msse2;-msse;-march=native;-maes
//internal stuff
//macros
#define DO_ENC_BLOCK(m,k) \
do{\
@davidkpiano
davidkpiano / app.js
Created September 4, 2015 14:41
Simple way to namespace React components
import React from 'react';
import * as My from './components/my-components.js';
export default class App extends React.Component {
render() {
return (
<div>
<My.Foo />
<My.Bar />
@marcelgrilo
marcelgrilo / PDB Files.txt
Created September 24, 2015 15:57
What are they and how to generate them
How to generate PDB files for RELEASE build
====================================
We can genererate PDB(Program Data Base) files for RELEASE build also.
Set “Project->Project Properties->Configuration Properties->Linker->Debugging->Generate Debug Info” to “Yes”.
Once you select this option, the next option “Generate Program Database File” will show the default path and name for the PDB file. If you build your solution it will generate <Targetname>.PDB file. This file will contain the debug info for the binary.
For generating the PDB in C#
=======================
Set “Project Properties -> Build -> Advanced…->Output -> Debug Info” to “PDB-only” or “Full”.
@ygotthilf
ygotthilf / jwtRS256.sh
Last active June 2, 2025 06:57
How to generate JWT RS256 key
ssh-keygen -t rsa -b 4096 -m PEM -f jwtRS256.key
# Don't add passphrase
openssl rsa -in jwtRS256.key -pubout -outform PEM -out jwtRS256.key.pub
cat jwtRS256.key
cat jwtRS256.key.pub
@klauspost
klauspost / dictionary-sorted.txt
Last active August 25, 2024 23:18
Brotli dictionary - printed escaped
" </div>"
" })();\r\n"
" && "
" &amp; "
" &nbsp;"
" ''The "
" (&quot;"
" (199"
" (200"
" (e.g."
@gokulkrishh
gokulkrishh / media-query.css
Last active July 12, 2025 23:39
CSS Media Queries for Desktop, Tablet, Mobile.
/*
##Device = Desktops
##Screen = 1281px to higher resolution desktops
*/
@media (min-width: 1281px) {
/* CSS */