ex. 72: overflow of integer type 'u8' with value '-16' #14

aryzing commented 2023年10月09日 20:56:21 +02:00

Not sure if there's any changes that are expected to be made to this line in exercise 72,

// This gets the digit from the "instruction". Can you// figure out why we subtract '0' from it?comptimevardigit=instructions[i+1]-'0';

The compiler is reporting an error for this line,

exercises/072_comptime7.zig:42:50: error: overflow of integer type 'u8' with value '-16'
 comptime var digit = instructions[i + 1] - '0';
 ~~~~~~~~~~~~~~~~~~~~^~~~~

Is anything required of users on this line or is this a bug with the exercise? Using Zig version 0.12.0-dev.798+5a4a5875d

Not sure if there's any changes that are expected to be made to this line in exercise 72, ```zig // This gets the digit from the "instruction". Can you // figure out why we subtract '0' from it? comptime var digit = instructions[i + 1] - '0'; ``` The compiler is reporting an error for this line, ``` exercises/072_comptime7.zig:42:50: error: overflow of integer type 'u8' with value '-16' comptime var digit = instructions[i + 1] - '0'; ~~~~~~~~~~~~~~~~~~~~^~~~~ ``` Is anything required of users on this line or is this a bug with the exercise? Using Zig version `0.12.0-dev.798+5a4a5875d`

aryzing commented 2023年10月09日 21:04:21 +02:00

Turns out the continue expression a few lines above was incorrect, causing the wrong characters to be used in the subtraction.

Turns out the continue expression a few lines above was incorrect, causing the wrong characters to be used in the subtraction.