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This commit is contained in:
Jon Lipstate
2023-03-28 15:40:48 -07:00
parent a3860e23c6
commit 0570c84a83
4 changed files with 501 additions and 5 deletions
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core/strconv/integers.odin
+49 -1
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@@ -9,7 +9,18 @@ Int_Flags :: bit_set[Int_Flag]
MAX_BASE :: 32
digits := "0123456789abcdefghijklmnopqrstuvwxyz"
/*
Determines whether the given unsigned 64-bit integer is a negative value by interpreting it as a signed integer with the specified bit size.
**Inputs**
- x: The unsigned 64-bit integer to check for negativity
- is_signed: A boolean indicating if the input should be treated as a signed integer
- bit_size: The bit size of the signed integer representation (8, 16, 32, or 64)
**Returns**
- u: The absolute value of the input integer
- neg: A boolean indicating whether the input integer is negative
*/
is_integer_negative :: proc(x: u64, is_signed: bool, bit_size: int) -> (u: u64, neg: bool) {
u = x
if is_signed {
@@ -36,7 +47,21 @@ is_integer_negative :: proc(x: u64, is_signed: bool, bit_size: int) -> (u: u64,
}
return
}
/*
Appends the string representation of an integer to a buffer with specified base, flags, and digit set.
**Inputs**
- buf: The buffer to append the integer representation to
- x: The integer value to convert
- base: The base for the integer representation (2 <= base <= MAX_BASE)
- is_signed: A boolean indicating if the input should be treated as a signed integer
- bit_size: The bit size of the signed integer representation (8, 16, 32, or 64)
- digits: The digit set used for the integer representation
- flags: The Int_Flags bit set to control integer formatting
**Returns**
- The string containing the integer representation appended to the buffer
*/
append_bits :: proc(buf: []byte, x: u64, base: int, is_signed: bool, bit_size: int, digits: string, flags: Int_Flags) -> string {
if base < 2 || base > MAX_BASE {
panic("strconv: illegal base passed to append_bits")
@@ -78,7 +103,18 @@ append_bits :: proc(buf: []byte, x: u64, base: int, is_signed: bool, bit_size: i
copy(buf, out)
return string(buf[0:len(out)])
}
/*
Determines whether the given unsigned 128-bit integer is a negative value by interpreting it as a signed integer with the specified bit size.
**Inputs**
- x: The unsigned 128-bit integer to check for negativity
- is_signed: A boolean indicating if the input should be treated as a signed integer
- bit_size: The bit size of the signed integer representation (8, 16, 32, 64, or 128)
**Returns**
- u: The absolute value of the input integer
- neg: A boolean indicating whether the input integer is negative
*/
is_integer_negative_128 :: proc(x: u128, is_signed: bool, bit_size: int) -> (u: u128, neg: bool) {
u = x
if is_signed {
@@ -109,9 +145,21 @@ is_integer_negative_128 :: proc(x: u128, is_signed: bool, bit_size: int) -> (u:
}
return
}
/*
Appends the string representation of a 128-bit integer to a buffer with specified base, flags, and digit set.
// import "core:runtime"
**Inputs**
- buf: The buffer to append the integer representation to
- x: The 128-bit integer value to convert
- base: The base for the integer representation (2 <= base <= MAX_BASE)
- is_signed: A boolean indicating if the input should be treated as a signed integer
- bit_size: The bit size of the signed integer representation (8, 16, 32, 64, or 128)
- digits: The digit set used for the integer representation
- flags: The Int_Flags bit set to control integer formatting
**Returns**
- The string containing the integer representation appended to the buffer
*/
append_bits_128 :: proc(buf: []byte, x: u128, base: int, is_signed: bool, bit_size: int, digits: string, flags: Int_Flags) -> string {
if base < 2 || base > MAX_BASE {
panic("strconv: illegal base passed to append_bits")