aboutsummaryrefslogtreecommitdiff
path: root/vendor/ryu/src/pretty
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/ryu/src/pretty')
-rw-r--r--vendor/ryu/src/pretty/exponent.rs48
-rw-r--r--vendor/ryu/src/pretty/mantissa.rs82
-rw-r--r--vendor/ryu/src/pretty/mod.rs224
3 files changed, 0 insertions, 354 deletions
diff --git a/vendor/ryu/src/pretty/exponent.rs b/vendor/ryu/src/pretty/exponent.rs
deleted file mode 100644
index b72add5..0000000
--- a/vendor/ryu/src/pretty/exponent.rs
+++ /dev/null
@@ -1,48 +0,0 @@
-use crate::digit_table::*;
-use core::ptr;
-
-#[cfg_attr(feature = "no-panic", inline)]
-pub unsafe fn write_exponent3(mut k: isize, mut result: *mut u8) -> usize {
- let sign = k < 0;
- if sign {
- *result = b'-';
- result = result.offset(1);
- k = -k;
- }
-
- debug_assert!(k < 1000);
- if k >= 100 {
- *result = b'0' + (k / 100) as u8;
- k %= 100;
- let d = DIGIT_TABLE.as_ptr().offset(k * 2);
- ptr::copy_nonoverlapping(d, result.offset(1), 2);
- sign as usize + 3
- } else if k >= 10 {
- let d = DIGIT_TABLE.as_ptr().offset(k * 2);
- ptr::copy_nonoverlapping(d, result, 2);
- sign as usize + 2
- } else {
- *result = b'0' + k as u8;
- sign as usize + 1
- }
-}
-
-#[cfg_attr(feature = "no-panic", inline)]
-pub unsafe fn write_exponent2(mut k: isize, mut result: *mut u8) -> usize {
- let sign = k < 0;
- if sign {
- *result = b'-';
- result = result.offset(1);
- k = -k;
- }
-
- debug_assert!(k < 100);
- if k >= 10 {
- let d = DIGIT_TABLE.as_ptr().offset(k * 2);
- ptr::copy_nonoverlapping(d, result, 2);
- sign as usize + 2
- } else {
- *result = b'0' + k as u8;
- sign as usize + 1
- }
-}
diff --git a/vendor/ryu/src/pretty/mantissa.rs b/vendor/ryu/src/pretty/mantissa.rs
deleted file mode 100644
index 0149f5c..0000000
--- a/vendor/ryu/src/pretty/mantissa.rs
+++ /dev/null
@@ -1,82 +0,0 @@
-use crate::digit_table::*;
-use core::ptr;
-
-#[cfg_attr(feature = "no-panic", inline)]
-pub unsafe fn write_mantissa_long(mut output: u64, mut result: *mut u8) {
- if (output >> 32) != 0 {
- // One expensive 64-bit division.
- let mut output2 = (output - 100_000_000 * (output / 100_000_000)) as u32;
- output /= 100_000_000;
-
- let c = output2 % 10_000;
- output2 /= 10_000;
- let d = output2 % 10_000;
- let c0 = (c % 100) << 1;
- let c1 = (c / 100) << 1;
- let d0 = (d % 100) << 1;
- let d1 = (d / 100) << 1;
- ptr::copy_nonoverlapping(
- DIGIT_TABLE.as_ptr().offset(c0 as isize),
- result.offset(-2),
- 2,
- );
- ptr::copy_nonoverlapping(
- DIGIT_TABLE.as_ptr().offset(c1 as isize),
- result.offset(-4),
- 2,
- );
- ptr::copy_nonoverlapping(
- DIGIT_TABLE.as_ptr().offset(d0 as isize),
- result.offset(-6),
- 2,
- );
- ptr::copy_nonoverlapping(
- DIGIT_TABLE.as_ptr().offset(d1 as isize),
- result.offset(-8),
- 2,
- );
- result = result.offset(-8);
- }
- write_mantissa(output as u32, result);
-}
-
-#[cfg_attr(feature = "no-panic", inline)]
-pub unsafe fn write_mantissa(mut output: u32, mut result: *mut u8) {
- while output >= 10_000 {
- let c = output - 10_000 * (output / 10_000);
- output /= 10_000;
- let c0 = (c % 100) << 1;
- let c1 = (c / 100) << 1;
- ptr::copy_nonoverlapping(
- DIGIT_TABLE.as_ptr().offset(c0 as isize),
- result.offset(-2),
- 2,
- );
- ptr::copy_nonoverlapping(
- DIGIT_TABLE.as_ptr().offset(c1 as isize),
- result.offset(-4),
- 2,
- );
- result = result.offset(-4);
- }
- if output >= 100 {
- let c = (output % 100) << 1;
- output /= 100;
- ptr::copy_nonoverlapping(
- DIGIT_TABLE.as_ptr().offset(c as isize),
- result.offset(-2),
- 2,
- );
- result = result.offset(-2);
- }
- if output >= 10 {
- let c = output << 1;
- ptr::copy_nonoverlapping(
- DIGIT_TABLE.as_ptr().offset(c as isize),
- result.offset(-2),
- 2,
- );
- } else {
- *result.offset(-1) = b'0' + output as u8;
- }
-}
diff --git a/vendor/ryu/src/pretty/mod.rs b/vendor/ryu/src/pretty/mod.rs
deleted file mode 100644
index da49e86..0000000
--- a/vendor/ryu/src/pretty/mod.rs
+++ /dev/null
@@ -1,224 +0,0 @@
-mod exponent;
-mod mantissa;
-
-use self::exponent::*;
-use self::mantissa::*;
-use crate::common;
-use crate::d2s::{self, *};
-use crate::f2s::*;
-use core::ptr;
-#[cfg(feature = "no-panic")]
-use no_panic::no_panic;
-
-/// Print f64 to the given buffer and return number of bytes written.
-///
-/// At most 24 bytes will be written.
-///
-/// ## Special cases
-///
-/// This function **does not** check for NaN or infinity. If the input
-/// number is not a finite float, the printed representation will be some
-/// correctly formatted but unspecified numerical value.
-///
-/// Please check [`is_finite`] yourself before calling this function, or
-/// check [`is_nan`] and [`is_infinite`] and handle those cases yourself.
-///
-/// [`is_finite`]: https://doc.rust-lang.org/std/primitive.f64.html#method.is_finite
-/// [`is_nan`]: https://doc.rust-lang.org/std/primitive.f64.html#method.is_nan
-/// [`is_infinite`]: https://doc.rust-lang.org/std/primitive.f64.html#method.is_infinite
-///
-/// ## Safety
-///
-/// The `result` pointer argument must point to sufficiently many writable bytes
-/// to hold Ryū's representation of `f`.
-///
-/// ## Example
-///
-/// ```
-/// use std::{mem::MaybeUninit, slice, str};
-///
-/// let f = 1.234f64;
-///
-/// unsafe {
-/// let mut buffer = [MaybeUninit::<u8>::uninit(); 24];
-/// let len = ryu::raw::format64(f, buffer.as_mut_ptr() as *mut u8);
-/// let slice = slice::from_raw_parts(buffer.as_ptr() as *const u8, len);
-/// let print = str::from_utf8_unchecked(slice);
-/// assert_eq!(print, "1.234");
-/// }
-/// ```
-#[must_use]
-#[cfg_attr(feature = "no-panic", no_panic)]
-pub unsafe fn format64(f: f64, result: *mut u8) -> usize {
- let bits = f.to_bits();
- let sign = ((bits >> (DOUBLE_MANTISSA_BITS + DOUBLE_EXPONENT_BITS)) & 1) != 0;
- let ieee_mantissa = bits & ((1u64 << DOUBLE_MANTISSA_BITS) - 1);
- let ieee_exponent =
- (bits >> DOUBLE_MANTISSA_BITS) as u32 & ((1u32 << DOUBLE_EXPONENT_BITS) - 1);
-
- let mut index = 0isize;
- if sign {
- *result = b'-';
- index += 1;
- }
-
- if ieee_exponent == 0 && ieee_mantissa == 0 {
- ptr::copy_nonoverlapping(b"0.0".as_ptr(), result.offset(index), 3);
- return sign as usize + 3;
- }
-
- let v = d2d(ieee_mantissa, ieee_exponent);
-
- let length = d2s::decimal_length17(v.mantissa) as isize;
- let k = v.exponent as isize;
- let kk = length + k; // 10^(kk-1) <= v < 10^kk
- debug_assert!(k >= -324);
-
- if 0 <= k && kk <= 16 {
- // 1234e7 -> 12340000000.0
- write_mantissa_long(v.mantissa, result.offset(index + length));
- for i in length..kk {
- *result.offset(index + i) = b'0';
- }
- *result.offset(index + kk) = b'.';
- *result.offset(index + kk + 1) = b'0';
- index as usize + kk as usize + 2
- } else if 0 < kk && kk <= 16 {
- // 1234e-2 -> 12.34
- write_mantissa_long(v.mantissa, result.offset(index + length + 1));
- ptr::copy(result.offset(index + 1), result.offset(index), kk as usize);
- *result.offset(index + kk) = b'.';
- index as usize + length as usize + 1
- } else if -5 < kk && kk <= 0 {
- // 1234e-6 -> 0.001234
- *result.offset(index) = b'0';
- *result.offset(index + 1) = b'.';
- let offset = 2 - kk;
- for i in 2..offset {
- *result.offset(index + i) = b'0';
- }
- write_mantissa_long(v.mantissa, result.offset(index + length + offset));
- index as usize + length as usize + offset as usize
- } else if length == 1 {
- // 1e30
- *result.offset(index) = b'0' + v.mantissa as u8;
- *result.offset(index + 1) = b'e';
- index as usize + 2 + write_exponent3(kk - 1, result.offset(index + 2))
- } else {
- // 1234e30 -> 1.234e33
- write_mantissa_long(v.mantissa, result.offset(index + length + 1));
- *result.offset(index) = *result.offset(index + 1);
- *result.offset(index + 1) = b'.';
- *result.offset(index + length + 1) = b'e';
- index as usize
- + length as usize
- + 2
- + write_exponent3(kk - 1, result.offset(index + length + 2))
- }
-}
-
-/// Print f32 to the given buffer and return number of bytes written.
-///
-/// At most 16 bytes will be written.
-///
-/// ## Special cases
-///
-/// This function **does not** check for NaN or infinity. If the input
-/// number is not a finite float, the printed representation will be some
-/// correctly formatted but unspecified numerical value.
-///
-/// Please check [`is_finite`] yourself before calling this function, or
-/// check [`is_nan`] and [`is_infinite`] and handle those cases yourself.
-///
-/// [`is_finite`]: https://doc.rust-lang.org/std/primitive.f32.html#method.is_finite
-/// [`is_nan`]: https://doc.rust-lang.org/std/primitive.f32.html#method.is_nan
-/// [`is_infinite`]: https://doc.rust-lang.org/std/primitive.f32.html#method.is_infinite
-///
-/// ## Safety
-///
-/// The `result` pointer argument must point to sufficiently many writable bytes
-/// to hold Ryū's representation of `f`.
-///
-/// ## Example
-///
-/// ```
-/// use std::{mem::MaybeUninit, slice, str};
-///
-/// let f = 1.234f32;
-///
-/// unsafe {
-/// let mut buffer = [MaybeUninit::<u8>::uninit(); 16];
-/// let len = ryu::raw::format32(f, buffer.as_mut_ptr() as *mut u8);
-/// let slice = slice::from_raw_parts(buffer.as_ptr() as *const u8, len);
-/// let print = str::from_utf8_unchecked(slice);
-/// assert_eq!(print, "1.234");
-/// }
-/// ```
-#[must_use]
-#[cfg_attr(feature = "no-panic", no_panic)]
-pub unsafe fn format32(f: f32, result: *mut u8) -> usize {
- let bits = f.to_bits();
- let sign = ((bits >> (FLOAT_MANTISSA_BITS + FLOAT_EXPONENT_BITS)) & 1) != 0;
- let ieee_mantissa = bits & ((1u32 << FLOAT_MANTISSA_BITS) - 1);
- let ieee_exponent = (bits >> FLOAT_MANTISSA_BITS) & ((1u32 << FLOAT_EXPONENT_BITS) - 1);
-
- let mut index = 0isize;
- if sign {
- *result = b'-';
- index += 1;
- }
-
- if ieee_exponent == 0 && ieee_mantissa == 0 {
- ptr::copy_nonoverlapping(b"0.0".as_ptr(), result.offset(index), 3);
- return sign as usize + 3;
- }
-
- let v = f2d(ieee_mantissa, ieee_exponent);
-
- let length = common::decimal_length9(v.mantissa) as isize;
- let k = v.exponent as isize;
- let kk = length + k; // 10^(kk-1) <= v < 10^kk
- debug_assert!(k >= -45);
-
- if 0 <= k && kk <= 13 {
- // 1234e7 -> 12340000000.0
- write_mantissa(v.mantissa, result.offset(index + length));
- for i in length..kk {
- *result.offset(index + i) = b'0';
- }
- *result.offset(index + kk) = b'.';
- *result.offset(index + kk + 1) = b'0';
- index as usize + kk as usize + 2
- } else if 0 < kk && kk <= 13 {
- // 1234e-2 -> 12.34
- write_mantissa(v.mantissa, result.offset(index + length + 1));
- ptr::copy(result.offset(index + 1), result.offset(index), kk as usize);
- *result.offset(index + kk) = b'.';
- index as usize + length as usize + 1
- } else if -6 < kk && kk <= 0 {
- // 1234e-6 -> 0.001234
- *result.offset(index) = b'0';
- *result.offset(index + 1) = b'.';
- let offset = 2 - kk;
- for i in 2..offset {
- *result.offset(index + i) = b'0';
- }
- write_mantissa(v.mantissa, result.offset(index + length + offset));
- index as usize + length as usize + offset as usize
- } else if length == 1 {
- // 1e30
- *result.offset(index) = b'0' + v.mantissa as u8;
- *result.offset(index + 1) = b'e';
- index as usize + 2 + write_exponent2(kk - 1, result.offset(index + 2))
- } else {
- // 1234e30 -> 1.234e33
- write_mantissa(v.mantissa, result.offset(index + length + 1));
- *result.offset(index) = *result.offset(index + 1);
- *result.offset(index + 1) = b'.';
- *result.offset(index + length + 1) = b'e';
- index as usize
- + length as usize
- + 2
- + write_exponent2(kk - 1, result.offset(index + length + 2))
- }
-}