/usr/share/yacas/include/standard.inl is in yacas 1.3.3-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | inline LispPtr& Argument(LispPtr& cur, LispInt n)
{
LISPASSERT(n>=0);
LispPtr* loop = &cur;
while(n--) loop = &(*loop)->Nixed();
return *loop;
}
// Boolean operations
inline void InternalTrue(LispEnvironment& aEnvironment, LispPtr& aResult)
{
aResult = (aEnvironment.iTrue->Copy());
}
inline void InternalFalse(LispEnvironment& aEnvironment, LispPtr& aResult)
{
aResult = (aEnvironment.iFalse->Copy());
}
inline void InternalBoolean(LispEnvironment& aEnvironment, LispPtr& aResult,
LispBoolean aValue)
{
if (aValue)
{
InternalTrue(aEnvironment, aResult);
}
else
{
InternalFalse(aEnvironment, aResult);
}
}
inline LispBoolean IsTrue(LispEnvironment& aEnvironment, LispPtr& aExpression)
{
LISPASSERT(aExpression);
return aExpression->String() == aEnvironment.iTrue->String();
}
inline LispBoolean IsFalse(LispEnvironment& aEnvironment, LispPtr& aExpression)
{
LISPASSERT(aExpression);
return aExpression->String() == aEnvironment.iFalse->String();
}
inline void InternalNot(LispPtr& aResult, LispEnvironment& aEnvironment, LispPtr& aExpression)
{
if (IsTrue(aEnvironment, aExpression))
{
InternalFalse(aEnvironment,aResult);
}
else
{
Check(IsFalse(aEnvironment, aExpression),KLispErrInvalidArg);
InternalTrue(aEnvironment,aResult);
}
}
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