CMake cross-compiling: C flags from toolchain file ignored
I’ve found a temporary solution by replacing the line SET(CMAKE_C_FLAGS “-std=gnu99”) by SET(CMAKE_C_FLAGS “-std=gnu99” CACHE STRING “” FORCE)
flags
Perl flags -pe, -pi, -p, -w, -d, -i, -t?
Yes, Google is notoriously difficult for looking up punctuation and, unfortunately, Perl does seem to be mostly made up of punctuation 🙂 The command line switches are all detailed in perlrun (available from the command line by calling perldoc perlrun). Going into the options briefly, one-by-one: -p: Places a printing loop around your command so … Read more
Bash if statement with multiple conditions throws an error
Use -a (for and) and -o (for or) operations. tldp.org/LDP/Bash-Beginners-Guide/html/sect_07_01.html Update Actually you could still use && and || with the -eq operation. So your script would be like this: my_error_flag=1 my_error_flag_o=1 if [ $my_error_flag -eq 1 ] || [ $my_error_flag_o -eq 2 ] || ([ $my_error_flag -eq 1 ] && [ $my_error_flag_o -eq 2 … Read more
How to Compare Flags in C#?
In .NET 4 there is a new method Enum.HasFlag. This allows you to write: if ( testItem.HasFlag( FlagTest.Flag1 ) ) { // Do Stuff } which is much more readable, IMO. The .NET source indicates that this performs the same logic as the accepted answer: public Boolean HasFlag(Enum flag) { if (!this.GetType().IsEquivalentTo(flag.GetType())) { throw new … Read more
How to check if any flags of a flag combination are set?
In .NET 4 you can use the Enum.HasFlag method : using System; [Flags] public enum Pet { None = 0, Dog = 1, Cat = 2, Bird = 4, Rabbit = 8, Other = 16 } public class Example { public static void Main() { // Define three families: one without pets, one with dog … Read more
Print All JVM Flags
Do not miss also -XX:+JVMCIPrintProperties for Graal JIT options. Before dive into sources you can skim over following extracts and find suitable option faster: https://chriswhocodes.com/ (OracleJDK 6/7/8/9/10/11/12, OpenJDK 8/9/10/11, Graal CE/EE, OpenJ9, Zing) http://jvm-options.tech.xebia.fr/ http://www.pingtimeout.fr/2012/05/jvm-options-complete-reference.html http://stas-blogspot.blogspot.com/2011/07/most-complete-list-of-xx-options-for.html
Most common C# bitwise operations on enums
I did some more work on these extensions – You can find the code here I wrote some extension methods that extend System.Enum that I use often… I’m not claiming that they are bulletproof, but they have helped… Comments removed… namespace Enum.Extensions { public static class EnumerationExtensions { public static bool Has<T>(this System.Enum type, T … Read more
Compiling C++11 with g++
Flags (or compiler options) are nothing but ordinary command line arguments passed to the compiler executable. Assuming you are invoking g++ from the command line (terminal): $ g++ -std=c++11 your_file.cpp -o your_program or $ g++ -std=c++0x your_file.cpp -o your_program if the above doesn’t work.
Anyone know a good workaround for the lack of an enum generic constraint?
EDIT: This is now live in version 0.0.0.2 of UnconstrainedMelody. (As requested on my blog post about enum constraints. I’ve included the basic facts below for the sake of a standalone answer.) The best solution is to wait for me to include it in UnconstrainedMelody1. This is a library which takes C# code with “fake” … Read more