Function precision_from_string 

pub fn precision_from_string(s: &str) -> i32

Extracts precision (number of decimal places) from a string representation.

Examples

use ccxt_core::precision::precision_from_string;

assert_eq!(precision_from_string("0.001"), 3);
assert_eq!(precision_from_string("0.01"), 2);
assert_eq!(precision_from_string("1.2345"), 4);
assert_eq!(precision_from_string("100"), 0);
assert_eq!(precision_from_string("1e-8"), 8);