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authorIndrajith K L2022-12-03 17:00:20 +0530
committerIndrajith K L2022-12-03 17:00:20 +0530
commitf5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch)
tree2764fc62da58f2ba8da7ed341643fc359873142f /v_windows/v/old/vlib/builtin/int.v
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Adds most of the toolsHEADmaster
Diffstat (limited to 'v_windows/v/old/vlib/builtin/int.v')
-rw-r--r--v_windows/v/old/vlib/builtin/int.v479
1 files changed, 479 insertions, 0 deletions
diff --git a/v_windows/v/old/vlib/builtin/int.v b/v_windows/v/old/vlib/builtin/int.v
new file mode 100644
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@@ -0,0 +1,479 @@
+// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
+// Use of this source code is governed by an MIT license
+// that can be found in the LICENSE file.
+module builtin
+
+//
+// ----- value to string functions -----
+//
+
+type u8 = byte
+
+// ptr_str returns the address of `ptr` as a `string`.
+pub fn ptr_str(ptr voidptr) string {
+ buf1 := u64(ptr).hex()
+ return buf1
+}
+
+pub fn (x size_t) str() string {
+ return u64(x).str()
+}
+
+pub fn (cptr &char) str() string {
+ return u64(cptr).hex()
+}
+
+const (
+ // digit pairs in reverse order
+ digit_pairs = '00102030405060708090011121314151617181910212223242526272829203132333435363738393041424344454647484940515253545556575859506162636465666768696071727374757677787970818283848586878889809192939495969798999'
+)
+
+// This implementation is the quickest with gcc -O2
+// str_l returns the string representation of the integer nn with max chars.
+[direct_array_access; inline]
+fn (nn int) str_l(max int) string {
+ unsafe {
+ mut n := i64(nn)
+ mut d := 0
+ if n == 0 {
+ return '0'
+ }
+
+ mut is_neg := false
+ if n < 0 {
+ n = -n
+ is_neg = true
+ }
+ mut index := max
+ mut buf := malloc_noscan(max + 1)
+ buf[index] = 0
+ index--
+
+ for n > 0 {
+ n1 := int(n / 100)
+ // calculate the digit_pairs start index
+ d = ((int(n) - (n1 * 100)) << 1)
+ n = n1
+ buf[index] = digit_pairs.str[d]
+ index--
+ d++
+ buf[index] = digit_pairs.str[d]
+ index--
+ }
+ index++
+ // remove head zero
+ if d < 20 {
+ index++
+ }
+ // Prepend - if it's negative
+ if is_neg {
+ index--
+ buf[index] = `-`
+ }
+ diff := max - index
+ C.memmove(buf, buf + index, diff + 1)
+ /*
+ // === manual memory move for bare metal ===
+ mut c:= 0
+ for c < diff {
+ buf[c] = buf[c+index]
+ c++
+ }
+ buf[c] = 0
+ */
+ return tos(buf, diff)
+
+ // return tos(memdup(&buf[0] + index, (max - index)), (max - index))
+ }
+}
+
+// str returns the value of the `i8` as a `string`.
+// Example: assert i8(-2).str() == '-2'
+pub fn (n i8) str() string {
+ return int(n).str_l(5)
+}
+
+// str returns the value of the `i16` as a `string`.
+// Example: assert i16(-20).str() == '-20'
+pub fn (n i16) str() string {
+ return int(n).str_l(7)
+}
+
+// str returns the value of the `u16` as a `string`.
+// Example: assert u16(20).str() == '20'
+pub fn (n u16) str() string {
+ return int(n).str_l(7)
+}
+
+// str returns the value of the `int` as a `string`.
+// Example: assert int(-2020).str() == '-2020'
+pub fn (n int) str() string {
+ return n.str_l(12)
+}
+
+// str returns the value of the `u32` as a `string`.
+// Example: assert u32(20000).str() == '20000'
+[direct_array_access; inline]
+pub fn (nn u32) str() string {
+ unsafe {
+ mut n := nn
+ mut d := u32(0)
+ if n == 0 {
+ return '0'
+ }
+ max := 12
+ mut buf := malloc_noscan(max + 1)
+ mut index := max
+ buf[index] = 0
+ index--
+ for n > 0 {
+ n1 := n / u32(100)
+ d = ((n - (n1 * u32(100))) << u32(1))
+ n = n1
+ buf[index] = digit_pairs[d]
+ index--
+ d++
+ buf[index] = digit_pairs[d]
+ index--
+ }
+ index++
+ // remove head zero
+ if d < u32(20) {
+ index++
+ }
+ diff := max - index
+ C.memmove(buf, buf + index, diff + 1)
+ return tos(buf, diff)
+
+ // return tos(memdup(&buf[0] + index, (max - index)), (max - index))
+ }
+}
+
+// str returns the value of the `int_literal` as a `string`.
+[inline]
+pub fn (n int_literal) str() string {
+ return i64(n).str()
+}
+
+// str returns the value of the `i64` as a `string`.
+// Example: assert i64(-200000).str() == '-200000'
+[direct_array_access; inline]
+pub fn (nn i64) str() string {
+ unsafe {
+ mut n := nn
+ mut d := i64(0)
+ if n == 0 {
+ return '0'
+ }
+ max := 20
+ mut buf := malloc_noscan(max + 1)
+ mut is_neg := false
+ if n < 0 {
+ n = -n
+ is_neg = true
+ }
+ mut index := max
+ buf[index] = 0
+ index--
+ for n > 0 {
+ n1 := n / i64(100)
+ d = ((n - (n1 * i64(100))) << i64(1))
+ n = n1
+ buf[index] = digit_pairs[d]
+ index--
+ d++
+ buf[index] = digit_pairs[d]
+ index--
+ }
+ index++
+ // remove head zero
+ if d < i64(20) {
+ index++
+ }
+ // Prepend - if it's negative
+ if is_neg {
+ index--
+ buf[index] = `-`
+ }
+ diff := max - index
+ C.memmove(buf, buf + index, diff + 1)
+ return tos(buf, diff)
+ // return tos(memdup(&buf[0] + index, (max - index)), (max - index))
+ }
+}
+
+// str returns the value of the `u64` as a `string`.
+// Example: assert u64(2000000).str() == '2000000'
+[direct_array_access; inline]
+pub fn (nn u64) str() string {
+ unsafe {
+ mut n := nn
+ mut d := u64(0)
+ if n == 0 {
+ return '0'
+ }
+ max := 20
+ mut buf := malloc_noscan(max + 1)
+ mut index := max
+ buf[index] = 0
+ index--
+ for n > 0 {
+ n1 := n / 100
+ d = ((n - (n1 * 100)) << 1)
+ n = n1
+ buf[index] = digit_pairs[d]
+ index--
+ d++
+ buf[index] = digit_pairs[d]
+ index--
+ }
+ index++
+ // remove head zero
+ if d < 20 {
+ index++
+ }
+ diff := max - index
+ C.memmove(buf, buf + index, diff + 1)
+ return tos(buf, diff)
+ // return tos(memdup(&buf[0] + index, (max - index)), (max - index))
+ }
+}
+
+// str returns the value of the `bool` as a `string`.
+// Example: assert (2 > 1).str() == 'true'
+pub fn (b bool) str() string {
+ if b {
+ return 'true'
+ }
+ return 'false'
+}
+
+//
+// ----- value to hex string functions -----
+//
+
+// u64_to_hex converts the number `nn` to a (zero padded if necessary) hexadecimal `string`.
+[direct_array_access; inline]
+fn u64_to_hex(nn u64, len byte) string {
+ mut n := nn
+ mut buf := [256]byte{}
+ buf[len] = 0
+ mut i := 0
+ for i = len - 1; i >= 0; i-- {
+ d := byte(n & 0xF)
+ x := if d < 10 { d + `0` } else { d + 87 }
+ buf[i] = x
+ n = n >> 4
+ }
+ return unsafe { tos(memdup(&buf[0], len + 1), len) }
+}
+
+// u64_to_hex_no_leading_zeros converts the number `nn` to hexadecimal `string`.
+[direct_array_access; inline]
+fn u64_to_hex_no_leading_zeros(nn u64, len byte) string {
+ mut n := nn
+ mut buf := [256]byte{}
+ buf[len] = 0
+ mut i := 0
+ for i = len - 1; i >= 0; i-- {
+ d := byte(n & 0xF)
+ x := if d < 10 { d + `0` } else { d + 87 }
+ buf[i] = x
+ n = n >> 4
+ if n == 0 {
+ break
+ }
+ }
+ res_len := len - i
+ return unsafe { tos(memdup(&buf[i], res_len + 1), res_len) }
+}
+
+// hex returns the value of the `byte` as a hexadecimal `string`.
+// Note that the output is zero padded for values below 16.
+// Example: assert byte(2).hex() == '02'
+// Example: assert byte(15).hex() == '0f'
+// Example: assert byte(255).hex() == 'ff'
+pub fn (nn byte) hex() string {
+ if nn == 0 {
+ return '00'
+ }
+ return u64_to_hex(nn, 2)
+}
+
+// hex returns the value of the `i8` as a hexadecimal `string`.
+// Note that the output is zero padded for values below 16.
+// Example: assert i8(8).hex() == '08'
+// Example: assert i8(10).hex() == '0a'
+// Example: assert i8(15).hex() == '0f'
+pub fn (nn i8) hex() string {
+ return byte(nn).hex()
+}
+
+// hex returns the value of the `u16` as a hexadecimal `string`.
+// Note that the output is ***not*** zero padded.
+// Example: assert u16(2).hex() == '2'
+// Example: assert u16(200).hex() == 'c8'
+pub fn (nn u16) hex() string {
+ if nn == 0 {
+ return '0'
+ }
+ return u64_to_hex_no_leading_zeros(nn, 4)
+}
+
+// hex returns the value of the `i16` as a hexadecimal `string`.
+// Note that the output is ***not*** zero padded.
+// Example: assert i16(2).hex() == '2'
+// Example: assert i16(200).hex() == 'c8'
+pub fn (nn i16) hex() string {
+ return u16(nn).hex()
+}
+
+// hex returns the value of the `u32` as a hexadecimal `string`.
+// Note that the output is ***not*** zero padded.
+// Example: assert u32(2).hex() == '2'
+// Example: assert u32(200).hex() == 'c8'
+pub fn (nn u32) hex() string {
+ if nn == 0 {
+ return '0'
+ }
+ return u64_to_hex_no_leading_zeros(nn, 8)
+}
+
+// hex returns the value of the `int` as a hexadecimal `string`.
+// Note that the output is ***not*** zero padded.
+// Example: assert int(2).hex() == '2'
+// Example: assert int(200).hex() == 'c8'
+pub fn (nn int) hex() string {
+ return u32(nn).hex()
+}
+
+// hex2 returns the value of the `int` as a `0x`-prefixed hexadecimal `string`.
+// Note that the output after `0x` is ***not*** zero padded.
+// Example: assert int(8).hex2() == '0x8'
+// Example: assert int(15).hex2() == '0xf'
+// Example: assert int(18).hex2() == '0x12'
+pub fn (n int) hex2() string {
+ return '0x' + n.hex()
+}
+
+// hex returns the value of the `u64` as a hexadecimal `string`.
+// Note that the output is ***not*** zero padded.
+// Example: assert u64(2).hex() == '2'
+// Example: assert u64(2000).hex() == '7d0'
+pub fn (nn u64) hex() string {
+ if nn == 0 {
+ return '0'
+ }
+ return u64_to_hex_no_leading_zeros(nn, 16)
+}
+
+// hex returns the value of the `i64` as a hexadecimal `string`.
+// Note that the output is ***not*** zero padded.
+// Example: assert i64(2).hex() == '2'
+// Example: assert i64(-200).hex() == 'ffffffffffffff38'
+// Example: assert i64(2021).hex() == '7e5'
+pub fn (nn i64) hex() string {
+ return u64(nn).hex()
+}
+
+// hex returns the value of the `int_literal` as a hexadecimal `string`.
+// Note that the output is ***not*** zero padded.
+pub fn (nn int_literal) hex() string {
+ return u64(nn).hex()
+}
+
+// hex returns the value of the `voidptr` as a hexadecimal `string`.
+// Note that the output is ***not*** zero padded.
+pub fn (nn voidptr) str() string {
+ return u64(nn).hex()
+}
+
+// hex returns the value of the `byteptr` as a hexadecimal `string`.
+// Note that the output is ***not*** zero padded.
+// pub fn (nn byteptr) str() string {
+pub fn (nn byteptr) str() string {
+ return u64(nn).hex()
+}
+
+pub fn (nn byte) hex_full() string {
+ return u64_to_hex(u64(nn), 2)
+}
+
+pub fn (nn i8) hex_full() string {
+ return u64_to_hex(u64(nn), 2)
+}
+
+pub fn (nn u16) hex_full() string {
+ return u64_to_hex(u64(nn), 4)
+}
+
+pub fn (nn i16) hex_full() string {
+ return u64_to_hex(u64(nn), 4)
+}
+
+pub fn (nn u32) hex_full() string {
+ return u64_to_hex(u64(nn), 8)
+}
+
+pub fn (nn int) hex_full() string {
+ return u64_to_hex(u64(nn), 8)
+}
+
+pub fn (nn i64) hex_full() string {
+ return u64_to_hex(u64(nn), 16)
+}
+
+pub fn (nn voidptr) hex_full() string {
+ return u64_to_hex(u64(nn), 16)
+}
+
+pub fn (nn int_literal) hex_full() string {
+ return u64_to_hex(u64(nn), 16)
+}
+
+// hex_full returns the value of the `u64` as a *full* 16-digit hexadecimal `string`.
+// Example: assert u64(2).hex_full() == '0000000000000002'
+// Example: assert u64(255).hex_full() == '00000000000000ff'
+pub fn (nn u64) hex_full() string {
+ return u64_to_hex(nn, 16)
+}
+
+// str returns the contents of `byte` as a zero terminated `string`.
+// Example: assert byte(111).str() == '111'
+pub fn (b byte) str() string {
+ return int(b).str_l(7)
+}
+
+// ascii_str returns the contents of `byte` as a zero terminated ASCII `string` character.
+// Example: assert byte(97).ascii_str() == 'a'
+pub fn (b byte) ascii_str() string {
+ mut str := string{
+ str: unsafe { malloc_noscan(2) }
+ len: 1
+ }
+ unsafe {
+ str.str[0] = b
+ str.str[1] = 0
+ }
+ // println(str)
+ return str
+}
+
+// str_escaped returns the contents of `byte` as an escaped `string`.
+// Example: assert byte(0).str_escaped() == r'`\0`'
+pub fn (b byte) str_escaped() string {
+ str := match b {
+ 0 { r'`\0`' }
+ 7 { r'`\a`' }
+ 8 { r'`\b`' }
+ 9 { r'`\t`' }
+ 10 { r'`\n`' }
+ 11 { r'`\v`' }
+ 12 { r'`\f`' }
+ 13 { r'`\r`' }
+ 27 { r'`\e`' }
+ 32...126 { b.ascii_str() }
+ else { '0x' + b.hex() }
+ }
+ return str
+}