On Wednesday, 10 May 2017 at 21:44:32 UTC, Andrei Alexandrescu
wrote:
On 5/10/17 3:40 PM, k-five wrote:
-----------------------------------
I no need to handle that, so is there any way to prevent this
exception?
Use the "parse" family:
https://dlang.org/phobos/std_conv.html#parse -- Andrei
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This is my answer :). I want a way to covert a string without
facing any exceptions.
But may I do not understand so well the documentation
It says:
The parse family of functions works quite like the to family,
except that:
1 - It only works with character ranges as input.
2 - It takes the input by reference. (This means that rvalues
- such as string literals - are not accepted: use to instead.)
3 - It advances the input to the position following the
conversion.
4 - It does not throw if it could not convert the entire
input.
here, number 4: It does not throw if it could not convert the
entire input.
then it says:
Throws:
A ConvException if the range does not represent a bool.
Well it says different things about throwing!
Also I tested this:
import std.stdio;
import std.conv: parse;
void main( string[] args ){
string str = "string";
int index = parse!int( str );
writeln( "index: ", index );
}
the output:
std.conv.ConvException@/usr/include/dmd/phobos/std/conv.d(2111):
Unexpected 's' when converting from type string to type int
and so on ...
Please correct me if I am wrong.
