Added some IEEE754 floats

common/ieee754_float/ReadMe.md

@@ -0,0 +1,12 @@
+<!--
+SPDX-FileCopyrightText: 2021 KOLANICH
+SPDX-License-Identifier: Unlicense
+-->
+
+## IEEE 754 floats
+
+These files contain an approximation of Euler number (`2.718281828459045`, as available in `numpy`) serialized into bytes using some formats defined in IEEE 754 / ISO/IEC 60559:2011.
+
+Source: math :).
+
+Generated with [`generate.py`](./generate.py)

common/ieee754_float/f16be.ieee754.license

@@ -0,0 +1,2 @@
+SPDX-FileCopyrightText: Uncopyrightable
+SPDX-License-Identifier: Unlicense

common/ieee754_float/f16le.ieee754.license

@@ -0,0 +1,2 @@
+SPDX-FileCopyrightText: Uncopyrightable
+SPDX-License-Identifier: Unlicense

common/ieee754_float/f2be.ieee754

@@ -0,0 +1 @@
+Ap

common/ieee754_float/f2be.ieee754.license

@@ -0,0 +1,2 @@
+SPDX-FileCopyrightText: Uncopyrightable
+SPDX-License-Identifier: Unlicense

common/ieee754_float/f2le.ieee754

@@ -0,0 +1 @@
+pA

common/ieee754_float/f2le.ieee754.license

@@ -0,0 +1,2 @@
+SPDX-FileCopyrightText: Uncopyrightable
+SPDX-License-Identifier: Unlicense

common/ieee754_float/f4be.ieee754

@@ -0,0 +1 @@
+@-�T

common/ieee754_float/f4be.ieee754.license

@@ -0,0 +1,2 @@
+SPDX-FileCopyrightText: Uncopyrightable
+SPDX-License-Identifier: Unlicense

common/ieee754_float/f4le.ieee754

@@ -0,0 +1 @@
+T�-@

common/ieee754_float/f4le.ieee754.license

@@ -0,0 +1,2 @@
+SPDX-FileCopyrightText: Uncopyrightable
+SPDX-License-Identifier: Unlicense

common/ieee754_float/f8be.ieee754

@@ -0,0 +1,2 @@
+@�
+�Wi

common/ieee754_float/f8be.ieee754.license

@@ -0,0 +1,2 @@
+SPDX-FileCopyrightText: Uncopyrightable
+SPDX-License-Identifier: Unlicense

common/ieee754_float/f8le.ieee754

@@ -0,0 +1,2 @@
+iW�
+�@

common/ieee754_float/f8le.ieee754.license

@@ -0,0 +1,2 @@
+SPDX-FileCopyrightText: Uncopyrightable
+SPDX-License-Identifier: Unlicense

common/ieee754_float/generate.py

@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+
+from ast import literal_eval
+from io import BytesIO
+from pathlib import Path
+from struct import Struct
+
+import numpy as np
+
+__license__ = "Unlicense"
+
+sizes = (1, 2, 4, 8, 10, 12, 16, 32)
+endians = {
+	"le": "<",
+	"be": ">"
+}
+
+S = Struct("<xxxxxxBB")
+
+vs = {1: Struct("H"), 2: Struct("I")}
+
+
+def genDTypes():
+	for e, eM in endians.items():
+		for s in sizes:
+			fS = "f" + str(s)
+			yield eM + fS, fS + e
+
+
+def main():
+	d = None
+	for t, fn in genDTypes():
+		f = Path(fn + ".ieee754")
+
+		try:
+			a = np.array([np.e], dtype=t)
+		except BaseException as e:
+			pass
+		else:
+			p = 0
+			with BytesIO() as b:
+				np.save(b, a, allow_pickle=False)
+				d = b.getvalue()
+
+			preHeader = d[: S.size]
+			vMajor, vMinor = S.unpack(preHeader)
+			p += S.size
+			headerSizeStruct = vs[vMajor]
+			headerSize = headerSizeStruct.unpack(d[p : p + headerSizeStruct.size])[0]
+			p += headerSizeStruct.size + headerSize
+			actualData = d[p:]
+
+			f.write_bytes(actualData)
+
+
+if __name__ == "__main__":
+	main()