Detect if-else output PowerShell

Question

I'm trying to make a PowerShell string to compile a program and if it's correctly compiled, I want to open the the program. The problem that I'm trying to solve is to understand how PowerShell understands when the MiniGW compiler with gcc command (for C files) throws a correct result.

Knowing that == TRUE and == FALSE are not accepted in PowerShell I tried an if without any logical operator

if(gcc '.\FileINeedToCompile.c'){
  Write-Host Correct;
} else {
  Write-Host NotCorrect;
}

but I get the NotCorrect result in the case that the program is correctly compiled and also the case it's not compiled.

I've also tried some varietions with the logical operator -eq like

if((gcc '.\FileINeedToCompile.c') -eq $FALSE)

but I get always the result of the else statement.

I searched everywhere and I really don't know how I could make this working. Thanks for help.

What's returned by gcc '.\FileINeedToCompile.c'? You can check the object type with (gcc '.\FileINeedToCompile.c').getType(). I would speculate that it is a string, so try if((gcc '.\FileINeedToCompile.c') -eq "False") — Jacob
– Jacob, Commented Oct 25, 2018 at 19:23
I suggest you look into using make instead of trying to roll your own build system. — Ansgar Wiechers
– Ansgar Wiechers, Commented Oct 25, 2018 at 20:14

UnhandledExcepSean · Accepted Answer · 2018-10-25 19:27:54Z

3

You can run the gcc and capture the error code for processing. I didn't test with gcc, but I did test with a small console app and this works assuming a return code of 0 is success.

gcc '.\FileINeedToCompile.c'
if($LASTEXITCODE -eq 0){
  Write-Host Correct;
} else {
  Write-Host NotCorrect;
}

A bit more info on this can be found here.

answered Oct 25, 2018 at 19:27

UnhandledExcepSean

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