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rpn(1): added floor division

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This commit is contained in:
Emma Tebibyte 2024-02-01 12:38:12 -07:00
parent 42d268319e
commit b68f13acdc
Signed by untrusted user: emma
GPG Key ID: 06FA419A1698C270
1 changed files with 4 additions and 1 deletions
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5
src/rpn.rs
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@ -50,7 +50,7 @@ use std::{
process::ExitCode, process::ExitCode,
}; };
use CalcType::{ Add, Divide, Modulo, Multiply, Power, Subtract, Val }; use CalcType::{ Add, Divide, Floor, Modulo, Multiply, Power, Subtract, Val };
extern crate sysexits; extern crate sysexits;
@ -64,6 +64,7 @@ enum CalcType {
Multiply, Multiply,
Divide, Divide,
Power, Power,
Floor,
Modulo, Modulo,
Val(f64), Val(f64),
} }
@ -97,6 +98,7 @@ fn str_to_calc_type(string: &str) -> Option<CalcType> {
"*" => Some(Multiply), "*" => Some(Multiply),
"/" => Some(Divide), "/" => Some(Divide),
"^" => Some(Power), "^" => Some(Power),
"//" => Some(Floor),
"%" => Some(Modulo), "%" => Some(Modulo),
_ => None, _ => None,
} }
@ -153,6 +155,7 @@ fn eval(
Multiply => &stack.push_back(y * x), Multiply => &stack.push_back(y * x),
Divide => &stack.push_back(y / x), Divide => &stack.push_back(y / x),
Power => &stack.push_back(x.powf(*y)), Power => &stack.push_back(x.powf(*y)),
Floor => &stack.push_back((y / x).floor()),
Modulo => &stack.push_back(y % x), Modulo => &stack.push_back(y % x),
_ => &{}, _ => &{},
}; };