constify unwrapped_div_int

README.md

@@ -113,6 +113,7 @@ The conversions supported cover the following cases.
       * [`rem_euclid`][f-re-1-8], [`checked_rem_euclid`][f-cre-1-8]
       * [`checked_div_int`][f-cdi-1-8],
         [`wrapping_div_int`][f-wdi-1-8],
+        [`unwrapped_div_int`][f-udi-1-8],
         [`overflowing_div_int`][f-odi-1-8]
   * The following methods were added to all fixed-point numbers:
       * [`const_not`][f-cn-1-8]
@@ -133,6 +134,7 @@ The conversions supported cover the following cases.
 [f-re-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.rem_euclid
 [f-sdei-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.saturating_div_euclid_int
 [f-srei-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.saturating_rem_euclid_int
+[f-udi-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.unwrapped_div_int
 [f-ur-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.unwrapped_rem
 [f-ure-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.unwrapped_rem_euclid
 [f-uri-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.unwrapped_rem_int

RELEASES.md

@@ -26,6 +26,7 @@ Version 1.8.0 (unreleased)
       * [`rem_euclid`][f-re-1-8], [`checked_rem_euclid`][f-cre-1-8]
       * [`checked_div_int`][f-cdi-1-8],
         [`wrapping_div_int`][f-wdi-1-8],
+        [`unwrapped_div_int`][f-udi-1-8],
         [`overflowing_div_int`][f-odi-1-8]
   * The following methods were added to all fixed-point numbers:
       * [`const_not`][f-cn-1-8]
@@ -46,6 +47,7 @@ Version 1.8.0 (unreleased)
 [f-re-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.rem_euclid
 [f-sdei-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.saturating_div_euclid_int
 [f-srei-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.saturating_rem_euclid_int
+[f-udi-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.unwrapped_div_int
 [f-ur-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.unwrapped_rem
 [f-ure-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.unwrapped_rem_euclid
 [f-uri-1-8]: https://tspiteri.gitlab.io/fixed/dev/fixed/struct.FixedI32.html#method.unwrapped_rem_int

src/macros_no_frac.rs

@@ -2264,29 +2264,33 @@ type Fix = ", $s_fixed, "<U4>;
 // 1.5 is binary 1.1
 let one_point_5 = Fix::from_bits(0b11 << (4 - 1));
 assert_eq!(Fix::from_num(3).unwrapped_div_int(2), one_point_5);
+```
+
+The following panics because the divisor is zero.
+
+```should_panic
+use fixed::{types::extra::U4, ", $s_fixed, "};
+type Fix = ", $s_fixed, "<U4>;
+let _divisor_is_zero = Fix::from_num(3).unwrapped_div_int(0);
+```
 ",
                 if_signed_else_empty_str! {
                     $Signedness,
-                    "```
+                    "
-
 The following panics because of overflow.
 
 ```should_panic
 use fixed::{types::extra::U4, ", $s_fixed, "};
 type Fix = ", $s_fixed, "<U4>;
 let _overflow = Fix::MIN.unwrapped_div_int(-1);
+```
 ",
-                },
+                };
-                "```
-";
                 #[inline]
                 #[track_caller]
                 #[must_use = "this returns the result of the operation, without modifying the original"]
-                pub fn unwrapped_div_int(self, rhs: $Inner) -> $Fixed<Frac> {
+                pub const fn unwrapped_div_int(self, rhs: $Inner) -> $Fixed<Frac> {
-                    match self.overflowing_div_int(rhs) {
+                    Self::from_bits(self.to_bits() / rhs)
-                        (_, true) => panic!("overflow"),
-                        (ans, false) => ans,
-                    }
                 }
             }