Rename integer log* methods to ilog*

library/core/benches/num/int_log/mod.rs

@@ -9,7 +9,7 @@ macro_rules! int_log_bench {
                 for n in 0..(<$t>::BITS / 8) {
                     for i in 1..=(100 as $t) {
                         let x = black_box(i << (n * 8));
-                        black_box(x.log10());
+                        black_box(x.ilog10());
                     }
                 }
             });
@@ -27,7 +27,7 @@ macro_rules! int_log_bench {
                 .collect();
             bench.iter(|| {
                 for x in &numbers {
-                    black_box(black_box(x).log10());
+                    black_box(black_box(x).ilog10());
                 }
             });
         }
@@ -44,7 +44,7 @@ macro_rules! int_log_bench {
                 .collect();
             bench.iter(|| {
                 for x in &numbers {
-                    black_box(black_box(x).log10());
+                    black_box(black_box(x).ilog10());
                 }
             });
         }

library/core/src/num/bignum.rs

@@ -137,7 +137,7 @@ macro_rules! define_bignum {
                 // Find the most significant non-zero digit.
                 let msd = digits.iter().rposition(|&x| x != 0);
                 match msd {
-                    Some(msd) => msd * digitbits + digits[msd].log2() as usize + 1,
+                    Some(msd) => msd * digitbits + digits[msd].ilog2() as usize + 1,
                     // There are no non-zero digits, i.e., the number is zero.
                     _ => 0,
                 }

library/core/src/num/int_macros.rs

@@ -2204,7 +2204,7 @@ macro_rules! int_impl {
         /// rounded down.
         ///
         /// This method might not be optimized owing to implementation details;
-        /// `log2` can produce results more efficiently for base 2, and `log10`
+        /// `ilog2` can produce results more efficiently for base 2, and `ilog10`
         /// can produce results more efficiently for base 10.
         ///
         /// # Panics
@@ -2217,7 +2217,7 @@ macro_rules! int_impl {
         ///
         /// ```
         /// #![feature(int_log)]
-        #[doc = concat!("assert_eq!(5", stringify!($SelfT), ".log(5), 1);")]
+        #[doc = concat!("assert_eq!(5", stringify!($SelfT), ".ilog(5), 1);")]
         /// ```
         #[unstable(feature = "int_log", issue = "70887")]
         #[must_use = "this returns the result of the operation, \
@@ -2226,8 +2226,8 @@ macro_rules! int_impl {
         #[track_caller]
         #[rustc_inherit_overflow_checks]
         #[allow(arithmetic_overflow)]
-        pub const fn log(self, base: Self) -> u32 {
-            match self.checked_log(base) {
+        pub const fn ilog(self, base: Self) -> u32 {
+            match self.checked_ilog(base) {
                 Some(n) => n,
                 None => {
                     // In debug builds, trigger a panic on None.
@@ -2250,7 +2250,7 @@ macro_rules! int_impl {
         ///
         /// ```
         /// #![feature(int_log)]
-        #[doc = concat!("assert_eq!(2", stringify!($SelfT), ".log2(), 1);")]
+        #[doc = concat!("assert_eq!(2", stringify!($SelfT), ".ilog2(), 1);")]
         /// ```
         #[unstable(feature = "int_log", issue = "70887")]
         #[must_use = "this returns the result of the operation, \
@@ -2259,8 +2259,8 @@ macro_rules! int_impl {
         #[track_caller]
         #[rustc_inherit_overflow_checks]
         #[allow(arithmetic_overflow)]
-        pub const fn log2(self) -> u32 {
-            match self.checked_log2() {
+        pub const fn ilog2(self) -> u32 {
+            match self.checked_ilog2() {
                 Some(n) => n,
                 None => {
                     // In debug builds, trigger a panic on None.
@@ -2283,7 +2283,7 @@ macro_rules! int_impl {
         ///
         /// ```
         /// #![feature(int_log)]
-        #[doc = concat!("assert_eq!(10", stringify!($SelfT), ".log10(), 1);")]
+        #[doc = concat!("assert_eq!(10", stringify!($SelfT), ".ilog10(), 1);")]
         /// ```
         #[unstable(feature = "int_log", issue = "70887")]
         #[must_use = "this returns the result of the operation, \
@@ -2292,8 +2292,8 @@ macro_rules! int_impl {
         #[track_caller]
         #[rustc_inherit_overflow_checks]
         #[allow(arithmetic_overflow)]
-        pub const fn log10(self) -> u32 {
-            match self.checked_log10() {
+        pub const fn ilog10(self) -> u32 {
+            match self.checked_ilog10() {
                 Some(n) => n,
                 None => {
                     // In debug builds, trigger a panic on None.
@@ -2311,20 +2311,20 @@ macro_rules! int_impl {
         /// Returns `None` if the number is negative or zero, or if the base is not at least 2.
         ///
         /// This method might not be optimized owing to implementation details;
-        /// `checked_log2` can produce results more efficiently for base 2, and
-        /// `checked_log10` can produce results more efficiently for base 10.
+        /// `checked_ilog2` can produce results more efficiently for base 2, and
+        /// `checked_ilog10` can produce results more efficiently for base 10.
         ///
         /// # Examples
         ///
         /// ```
         /// #![feature(int_log)]
-        #[doc = concat!("assert_eq!(5", stringify!($SelfT), ".checked_log(5), Some(1));")]
+        #[doc = concat!("assert_eq!(5", stringify!($SelfT), ".checked_ilog(5), Some(1));")]
         /// ```
         #[unstable(feature = "int_log", issue = "70887")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline]
-        pub const fn checked_log(self, base: Self) -> Option<u32> {
+        pub const fn checked_ilog(self, base: Self) -> Option<u32> {
             if self <= 0 || base <= 1 {
                 None
             } else {
@@ -2333,7 +2333,7 @@ macro_rules! int_impl {
 
                 // Optimization for 128 bit wide integers.
                 if Self::BITS == 128 {
-                    let b = Self::log2(self) / (Self::log2(base) + 1);
+                    let b = Self::ilog2(self) / (Self::ilog2(base) + 1);
                     n += b;
                     r /= base.pow(b as u32);
                 }
@@ -2354,13 +2354,13 @@ macro_rules! int_impl {
         ///
         /// ```
         /// #![feature(int_log)]
-        #[doc = concat!("assert_eq!(2", stringify!($SelfT), ".checked_log2(), Some(1));")]
+        #[doc = concat!("assert_eq!(2", stringify!($SelfT), ".checked_ilog2(), Some(1));")]
         /// ```
         #[unstable(feature = "int_log", issue = "70887")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline]
-        pub const fn checked_log2(self) -> Option<u32> {
+        pub const fn checked_ilog2(self) -> Option<u32> {
             if self <= 0 {
                 None
             } else {
@@ -2378,13 +2378,13 @@ macro_rules! int_impl {
         ///
         /// ```
         /// #![feature(int_log)]
-        #[doc = concat!("assert_eq!(10", stringify!($SelfT), ".checked_log10(), Some(1));")]
+        #[doc = concat!("assert_eq!(10", stringify!($SelfT), ".checked_ilog10(), Some(1));")]
         /// ```
         #[unstable(feature = "int_log", issue = "70887")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline]
-        pub const fn checked_log10(self) -> Option<u32> {
+        pub const fn checked_ilog10(self) -> Option<u32> {
             if self > 0 {
                 Some(int_log10::$ActualT(self as $ActualT))
             } else {

library/core/src/num/nonzero.rs

@@ -450,7 +450,7 @@ macro_rules! nonzero_unsigned_operations {
                 /// Returns the base 2 logarithm of the number, rounded down.
                 ///
                 /// This is the same operation as
-                #[doc = concat!("[`", stringify!($Int), "::log2`],")]
+                #[doc = concat!("[`", stringify!($Int), "::ilog2`],")]
                 /// except that it has no failure cases to worry about
                 /// since this value can never be zero.
                 ///
@@ -460,22 +460,22 @@ macro_rules! nonzero_unsigned_operations {
                 /// #![feature(int_log)]
                 #[doc = concat!("# use std::num::", stringify!($Ty), ";")]
                 ///
-                #[doc = concat!("assert_eq!(", stringify!($Ty), "::new(7).unwrap().log2(), 2);")]
-                #[doc = concat!("assert_eq!(", stringify!($Ty), "::new(8).unwrap().log2(), 3);")]
-                #[doc = concat!("assert_eq!(", stringify!($Ty), "::new(9).unwrap().log2(), 3);")]
+                #[doc = concat!("assert_eq!(", stringify!($Ty), "::new(7).unwrap().ilog2(), 2);")]
+                #[doc = concat!("assert_eq!(", stringify!($Ty), "::new(8).unwrap().ilog2(), 3);")]
+                #[doc = concat!("assert_eq!(", stringify!($Ty), "::new(9).unwrap().ilog2(), 3);")]
                 /// ```
                 #[unstable(feature = "int_log", issue = "70887")]
                 #[must_use = "this returns the result of the operation, \
                               without modifying the original"]
                 #[inline]
-                pub const fn log2(self) -> u32 {
+                pub const fn ilog2(self) -> u32 {
                     Self::BITS - 1 - self.leading_zeros()
                 }
 
                 /// Returns the base 10 logarithm of the number, rounded down.
                 ///
                 /// This is the same operation as
-                #[doc = concat!("[`", stringify!($Int), "::log10`],")]
+                #[doc = concat!("[`", stringify!($Int), "::ilog10`],")]
                 /// except that it has no failure cases to worry about
                 /// since this value can never be zero.
                 ///
@@ -485,15 +485,15 @@ macro_rules! nonzero_unsigned_operations {
                 /// #![feature(int_log)]
                 #[doc = concat!("# use std::num::", stringify!($Ty), ";")]
                 ///
-                #[doc = concat!("assert_eq!(", stringify!($Ty), "::new(99).unwrap().log10(), 1);")]
-                #[doc = concat!("assert_eq!(", stringify!($Ty), "::new(100).unwrap().log10(), 2);")]
-                #[doc = concat!("assert_eq!(", stringify!($Ty), "::new(101).unwrap().log10(), 2);")]
+                #[doc = concat!("assert_eq!(", stringify!($Ty), "::new(99).unwrap().ilog10(), 1);")]
+                #[doc = concat!("assert_eq!(", stringify!($Ty), "::new(100).unwrap().ilog10(), 2);")]
+                #[doc = concat!("assert_eq!(", stringify!($Ty), "::new(101).unwrap().ilog10(), 2);")]
                 /// ```
                 #[unstable(feature = "int_log", issue = "70887")]
                 #[must_use = "this returns the result of the operation, \
                               without modifying the original"]
                 #[inline]
-                pub const fn log10(self) -> u32 {
+                pub const fn ilog10(self) -> u32 {
                     super::int_log10::$Int(self.0)
                 }
             }

library/core/src/num/uint_macros.rs

@@ -700,7 +700,7 @@ macro_rules! uint_impl {
         ///
         /// ```
         /// #![feature(int_log)]
-        #[doc = concat!("assert_eq!(5", stringify!($SelfT), ".log(5), 1);")]
+        #[doc = concat!("assert_eq!(5", stringify!($SelfT), ".ilog(5), 1);")]
         /// ```
         #[unstable(feature = "int_log", issue = "70887")]
         #[must_use = "this returns the result of the operation, \
@@ -709,8 +709,8 @@ macro_rules! uint_impl {
         #[track_caller]
         #[rustc_inherit_overflow_checks]
         #[allow(arithmetic_overflow)]
-        pub const fn log(self, base: Self) -> u32 {
-            match self.checked_log(base) {
+        pub const fn ilog(self, base: Self) -> u32 {
+            match self.checked_ilog(base) {
                 Some(n) => n,
                 None => {
                     // In debug builds, trigger a panic on None.
@@ -733,7 +733,7 @@ macro_rules! uint_impl {
         ///
         /// ```
         /// #![feature(int_log)]
-        #[doc = concat!("assert_eq!(2", stringify!($SelfT), ".log2(), 1);")]
+        #[doc = concat!("assert_eq!(2", stringify!($SelfT), ".ilog2(), 1);")]
         /// ```
         #[unstable(feature = "int_log", issue = "70887")]
         #[must_use = "this returns the result of the operation, \
@@ -742,8 +742,8 @@ macro_rules! uint_impl {
         #[track_caller]
         #[rustc_inherit_overflow_checks]
         #[allow(arithmetic_overflow)]
-        pub const fn log2(self) -> u32 {
-            match self.checked_log2() {
+        pub const fn ilog2(self) -> u32 {
+            match self.checked_ilog2() {
                 Some(n) => n,
                 None => {
                     // In debug builds, trigger a panic on None.
@@ -766,7 +766,7 @@ macro_rules! uint_impl {
         ///
         /// ```
         /// #![feature(int_log)]
-        #[doc = concat!("assert_eq!(10", stringify!($SelfT), ".log10(), 1);")]
+        #[doc = concat!("assert_eq!(10", stringify!($SelfT), ".ilog10(), 1);")]
         /// ```
         #[unstable(feature = "int_log", issue = "70887")]
         #[must_use = "this returns the result of the operation, \
@@ -775,8 +775,8 @@ macro_rules! uint_impl {
         #[track_caller]
         #[rustc_inherit_overflow_checks]
         #[allow(arithmetic_overflow)]
-        pub const fn log10(self) -> u32 {
-            match self.checked_log10() {
+        pub const fn ilog10(self) -> u32 {
+            match self.checked_ilog10() {
                 Some(n) => n,
                 None => {
                     // In debug builds, trigger a panic on None.
@@ -794,20 +794,20 @@ macro_rules! uint_impl {
         /// Returns `None` if the number is zero, or if the base is not at least 2.
         ///
         /// This method might not be optimized owing to implementation details;
-        /// `checked_log2` can produce results more efficiently for base 2, and
-        /// `checked_log10` can produce results more efficiently for base 10.
+        /// `checked_ilog2` can produce results more efficiently for base 2, and
+        /// `checked_ilog10` can produce results more efficiently for base 10.
         ///
         /// # Examples
         ///
         /// ```
         /// #![feature(int_log)]
-        #[doc = concat!("assert_eq!(5", stringify!($SelfT), ".checked_log(5), Some(1));")]
+        #[doc = concat!("assert_eq!(5", stringify!($SelfT), ".checked_ilog(5), Some(1));")]
         /// ```
         #[unstable(feature = "int_log", issue = "70887")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline]
-        pub const fn checked_log(self, base: Self) -> Option<u32> {
+        pub const fn checked_ilog(self, base: Self) -> Option<u32> {
             if self <= 0 || base <= 1 {
                 None
             } else {
@@ -816,7 +816,7 @@ macro_rules! uint_impl {
 
                 // Optimization for 128 bit wide integers.
                 if Self::BITS == 128 {
-                    let b = Self::log2(self) / (Self::log2(base) + 1);
+                    let b = Self::ilog2(self) / (Self::ilog2(base) + 1);
                     n += b;
                     r /= base.pow(b as u32);
                 }
@@ -837,15 +837,15 @@ macro_rules! uint_impl {
         ///
         /// ```
         /// #![feature(int_log)]
-        #[doc = concat!("assert_eq!(2", stringify!($SelfT), ".checked_log2(), Some(1));")]
+        #[doc = concat!("assert_eq!(2", stringify!($SelfT), ".checked_ilog2(), Some(1));")]
         /// ```
         #[unstable(feature = "int_log", issue = "70887")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline]
-        pub const fn checked_log2(self) -> Option<u32> {
+        pub const fn checked_ilog2(self) -> Option<u32> {
             if let Some(x) = <$NonZeroT>::new(self) {
-                Some(x.log2())
+                Some(x.ilog2())
             } else {
                 None
             }
@@ -859,15 +859,15 @@ macro_rules! uint_impl {
         ///
         /// ```
         /// #![feature(int_log)]
-        #[doc = concat!("assert_eq!(10", stringify!($SelfT), ".checked_log10(), Some(1));")]
+        #[doc = concat!("assert_eq!(10", stringify!($SelfT), ".checked_ilog10(), Some(1));")]
         /// ```
         #[unstable(feature = "int_log", issue = "70887")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline]
-        pub const fn checked_log10(self) -> Option<u32> {
+        pub const fn checked_ilog10(self) -> Option<u32> {
             if let Some(x) = <$NonZeroT>::new(self) {
-                Some(x.log10())
+                Some(x.ilog10())
             } else {
                 None
             }

library/core/src/time.rs

@@ -1135,7 +1135,7 @@ impl fmt::Debug for Duration {
                     // 2. The postfix: can be "µs" so we have to count UTF8 characters.
                     let mut actual_w = prefix.len() + postfix.chars().count();
                     // 3. The integer part:
-                    if let Some(log) = integer_part.checked_log10() {
+                    if let Some(log) = integer_part.checked_ilog10() {
                         // integer_part is > 0, so has length log10(x)+1
                         actual_w += 1 + log as usize;
                     } else {