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use byteorder::{ByteOrder, LittleEndian}; use crate::decode::Decode; use crate::encode::{Encode, IsNull}; use crate::error::BoxDynError; use crate::mssql::protocol::type_info::{DataType, TypeInfo}; use crate::mssql::{Mssql, MssqlTypeInfo, MssqlValueRef}; use crate::types::Type; impl Type<Mssql> for f32 { fn type_info() -> MssqlTypeInfo { MssqlTypeInfo(TypeInfo::new(DataType::FloatN, 4)) } fn compatible(ty: &MssqlTypeInfo) -> bool { matches!(ty.0.ty, DataType::Real | DataType::FloatN) && ty.0.size == 4 } } impl Encode<'_, Mssql> for f32 { fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull { buf.extend(&self.to_le_bytes()); IsNull::No } } impl Decode<'_, Mssql> for f32 { fn decode(value: MssqlValueRef<'_>) -> Result<Self, BoxDynError> { Ok(LittleEndian::read_f32(value.as_bytes()?)) } } impl Type<Mssql> for f64 { fn type_info() -> MssqlTypeInfo { MssqlTypeInfo(TypeInfo::new(DataType::FloatN, 8)) } fn compatible(ty: &MssqlTypeInfo) -> bool { matches!(ty.0.ty, DataType::Float | DataType::FloatN) && ty.0.size == 8 } } impl Encode<'_, Mssql> for f64 { fn encode_by_ref(&self, buf: &mut Vec<u8>) -> IsNull { buf.extend(&self.to_le_bytes()); IsNull::No } } impl Decode<'_, Mssql> for f64 { fn decode(value: MssqlValueRef<'_>) -> Result<Self, BoxDynError> { Ok(LittleEndian::read_f64(value.as_bytes()?)) } }