mirror of
https://github.com/sjwhitworth/golearn.git
synced 2025-04-30 13:48:57 +08:00
33 lines
679 B
Go
33 lines
679 B
Go
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package edf
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func uint64ToBytes(in uint64, out []byte) {
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var i uint64
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for i = 0; i < 8; i++ {
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out[7-i] = byte((in & (0xFF << i * 8) >> i * 8))
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}
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}
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func uint64FromBytes(in []byte) uint64 {
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var i uint64
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out := uint64(0)
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for i = 0; i < 8; i++ {
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out |= uint64(in[7-i] << uint64(i*0x8))
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}
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return out
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}
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func uint32FromBytes(in []byte) uint32 {
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ret := uint32(0)
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ret |= uint32(in[0]) << 24
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ret |= uint32(in[1]) << 16
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ret |= uint32(in[2]) << 8
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ret |= uint32(in[3])
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return ret
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}
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func uint32ToBytes(in uint32, out []byte) {
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out[0] = byte(in & (0xFF << 24) >> 24)
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out[1] = byte(in & (0xFF << 16) >> 16)
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out[2] = byte(in & (0xFF << 8) >> 8)
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out[3] = byte(in & 0xFF)
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}
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