github.com/lmorg/murex@v0.0.0-20240217211045-e081c89cd4ef/gen/includes/expr-strict-types.inc.md (about) 1 ### Type Safety 2 3 Because shells are historically untyped, you cannot always guarantee that a 4 numeric-looking value isn't a string. To solve this problem, by default Murex 5 assumes anything that looks like a number is a number when performing addition. 6 7 ``` 8 » str = "2" 9 » int = 3 10 » $str + $int 11 1 12 ``` 13 14 For occasions when type safety is more important than the convenience of silent 15 data casting, you can disable the above behaviour via `config`: 16 17 ``` 18 » config set proc strict-types false 19 » $str + $int 20 Error in `expr` (0,1): cannot Add with string types 21 > Expression: $str + $int 22 > : ^ 23 > Character : 1 24 > Symbol : Scalar 25 > Value : '$str' 26 ```