From 1e7b32490dfdccddd04f46d4b0416b48d749d51b Mon Sep 17 00:00:00 2001 From: kim <89579420+NyaaaWhatsUpDoc@users.noreply.github.com> Date: Mon, 27 May 2024 15:46:15 +0000 Subject: [experiment] add alternative wasm sqlite3 implementation available via build-tag (#2863) This allows for building GoToSocial with [SQLite transpiled to WASM](https://github.com/ncruces/go-sqlite3) and accessed through [Wazero](https://wazero.io/). --- .../tetratelabs/wazero/internal/ieee754/ieee754.go | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 vendor/github.com/tetratelabs/wazero/internal/ieee754/ieee754.go (limited to 'vendor/github.com/tetratelabs/wazero/internal/ieee754') diff --git a/vendor/github.com/tetratelabs/wazero/internal/ieee754/ieee754.go b/vendor/github.com/tetratelabs/wazero/internal/ieee754/ieee754.go new file mode 100644 index 000000000..0c9298957 --- /dev/null +++ b/vendor/github.com/tetratelabs/wazero/internal/ieee754/ieee754.go @@ -0,0 +1,29 @@ +package ieee754 + +import ( + "encoding/binary" + "io" + "math" +) + +// DecodeFloat32 decodes a float32 in IEEE 754 binary representation. +// See https://www.w3.org/TR/2019/REC-wasm-core-1-20191205/#floating-point%E2%91%A2 +func DecodeFloat32(buf []byte) (float32, error) { + if len(buf) < 4 { + return 0, io.ErrUnexpectedEOF + } + + raw := binary.LittleEndian.Uint32(buf[:4]) + return math.Float32frombits(raw), nil +} + +// DecodeFloat64 decodes a float64 in IEEE 754 binary representation. +// See https://www.w3.org/TR/2019/REC-wasm-core-1-20191205/#floating-point%E2%91%A2 +func DecodeFloat64(buf []byte) (float64, error) { + if len(buf) < 8 { + return 0, io.ErrUnexpectedEOF + } + + raw := binary.LittleEndian.Uint64(buf) + return math.Float64frombits(raw), nil +} -- cgit v1.2.3