diff options
| -rw-r--r-- | library/core/src/num/nonzero.rs | 42 |
1 files changed, 32 insertions, 10 deletions
diff --git a/library/core/src/num/nonzero.rs b/library/core/src/num/nonzero.rs index fcdd983343d..863f0d61df3 100644 --- a/library/core/src/num/nonzero.rs +++ b/library/core/src/num/nonzero.rs @@ -517,9 +517,13 @@ macro_rules! nonzero_integer { /// ``` /// # use std::num::NonZero; /// # - #[doc = concat!("let n = NonZero::<", stringify!($Int), ">::new(", $leading_zeros_test, ").unwrap();")] + /// # fn main() { test().unwrap(); } + /// # fn test() -> Option<()> { + #[doc = concat!("let n = NonZero::<", stringify!($Int), ">::new(", $leading_zeros_test, ")?;")] /// /// assert_eq!(n.leading_zeros(), 0); + /// # Some(()) + /// # } /// ``` #[stable(feature = "nonzero_leading_trailing_zeros", since = "1.53.0")] #[rustc_const_stable(feature = "nonzero_leading_trailing_zeros", since = "1.53.0")] @@ -545,9 +549,13 @@ macro_rules! nonzero_integer { /// ``` /// # use std::num::NonZero; /// # - #[doc = concat!("let n = NonZero::<", stringify!($Int), ">::new(0b0101000).unwrap();")] + /// # fn main() { test().unwrap(); } + /// # fn test() -> Option<()> { + #[doc = concat!("let n = NonZero::<", stringify!($Int), ">::new(0b0101000)?;")] /// /// assert_eq!(n.trailing_zeros(), 3); + /// # Some(()) + /// # } /// ``` #[stable(feature = "nonzero_leading_trailing_zeros", since = "1.53.0")] #[rustc_const_stable(feature = "nonzero_leading_trailing_zeros", since = "1.53.0")] @@ -1101,9 +1109,13 @@ macro_rules! nonzero_integer_signedness_dependent_methods { /// ``` /// # use std::num::NonZero; /// # - #[doc = concat!("assert_eq!(NonZero::new(7", stringify!($Int), ").unwrap().ilog2(), 2);")] - #[doc = concat!("assert_eq!(NonZero::new(8", stringify!($Int), ").unwrap().ilog2(), 3);")] - #[doc = concat!("assert_eq!(NonZero::new(9", stringify!($Int), ").unwrap().ilog2(), 3);")] + /// # fn main() { test().unwrap(); } + /// # fn test() -> Option<()> { + #[doc = concat!("assert_eq!(NonZero::new(7", stringify!($Int), ")?.ilog2(), 2);")] + #[doc = concat!("assert_eq!(NonZero::new(8", stringify!($Int), ")?.ilog2(), 3);")] + #[doc = concat!("assert_eq!(NonZero::new(9", stringify!($Int), ")?.ilog2(), 3);")] + /// # Some(()) + /// # } /// ``` #[stable(feature = "int_log", since = "1.67.0")] #[rustc_const_stable(feature = "int_log", since = "1.67.0")] @@ -1126,9 +1138,13 @@ macro_rules! nonzero_integer_signedness_dependent_methods { /// ``` /// # use std::num::NonZero; /// # - #[doc = concat!("assert_eq!(NonZero::new(99", stringify!($Int), ").unwrap().ilog10(), 1);")] - #[doc = concat!("assert_eq!(NonZero::new(100", stringify!($Int), ").unwrap().ilog10(), 2);")] - #[doc = concat!("assert_eq!(NonZero::new(101", stringify!($Int), ").unwrap().ilog10(), 2);")] + /// # fn main() { test().unwrap(); } + /// # fn test() -> Option<()> { + #[doc = concat!("assert_eq!(NonZero::new(99", stringify!($Int), ")?.ilog10(), 1);")] + #[doc = concat!("assert_eq!(NonZero::new(100", stringify!($Int), ")?.ilog10(), 2);")] + #[doc = concat!("assert_eq!(NonZero::new(101", stringify!($Int), ")?.ilog10(), 2);")] + /// # Some(()) + /// # } /// ``` #[stable(feature = "int_log", since = "1.67.0")] #[rustc_const_stable(feature = "int_log", since = "1.67.0")] @@ -1187,10 +1203,16 @@ macro_rules! nonzero_integer_signedness_dependent_methods { /// Basic usage: /// /// ``` - #[doc = concat!("let eight = std::num::NonZero::new(8", stringify!($Int), ").unwrap();")] + /// # use std::num::NonZero; + /// # + /// # fn main() { test().unwrap(); } + /// # fn test() -> Option<()> { + #[doc = concat!("let eight = NonZero::new(8", stringify!($Int), ")?;")] /// assert!(eight.is_power_of_two()); - #[doc = concat!("let ten = std::num::NonZero::new(10", stringify!($Int), ").unwrap();")] + #[doc = concat!("let ten = NonZero::new(10", stringify!($Int), ")?;")] /// assert!(!ten.is_power_of_two()); + /// # Some(()) + /// # } /// ``` #[must_use] #[stable(feature = "nonzero_is_power_of_two", since = "1.59.0")] |