Re: How to avoid throwing an exceptions for a built-in function?

[crimaniak via Digitalmars-d-learn]

On Wednesday, 10 May 2017 at 12:40:41 UTC, k-five wrote:

I have a line of code that uses "to" function in std.conv for a purpose like:

int index = to!int( user_apply[ 4 ] ); // string to int

When the user_apply[ 4 ] has value, there is no problem; but when it is empty: "" it throws an ConvException exception and I want to avoid this exception.

currently I have to use a dummy catch:
try{
    index = to!int( user_apply[ 4 ] );
} catch( ConvException conv_error ){
    // nothing
}

I no need to handle that, so is there any way to prevent this exception?

try this:
https://dlang.org/phobos/std_exception.html#ifThrown