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/*++
Module Name:
Seed.cpp
Abstract:
Code to handle seeds in the SNAP sequencer.
Authors:
Bill Bolosky, August, 2011
Environment:
`
User mode service.
Revision History:
Adapted from Matei Zaharia's Scala implementation.
--*/
#include "stdafx.h"
#include "Seed.h"
bool
Seed::DoesTextRepresentASeed(const char *textBases, unsigned seedLen)
{
for (unsigned i = 0; i < seedLen; i++) {
switch (textBases[i]) {
case 'A':
case 'G':
case 'C':
case 'T':
break;
default: return false;
}
}
return true;
}
Seed
Seed::fromBases(
_int64 bases,
int seedLength)
{
_int64 rc = 0;
_int64 b = bases;
for (int i = 0; i < seedLength; i++) {
rc = (rc << 2) | ((b & 3) ^ 3);
b = b >> 2;
}
return Seed(bases, rc);
}
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