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BUILT-IN MATHEMATICA SYMBOL

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HoldComplete

HoldComplete[expr]
shields expr completely from the standard Mathematica evaluation process, preventing even upvalues associated with expr from being used.

MORE INFORMATION

HoldComplete has attribute HoldAllComplete, and performs no operations on its arguments.

HoldComplete is removed by ReleaseHold. »

HoldComplete can be inserted as a wrapper by such functions as ToExpression and ReplacePart. »

HoldComplete is generated by default by MakeExpression.

Out[1]=

Properties & Relations (6)

HoldComplete is the standard container with attribute HoldAllComplete:

No form of evaluation control affects an expression with attribute HoldAllComplete:

Substitution still happens inside HoldComplete:

ReleaseHold removes one level of HoldComplete:

Hold is a milder form of HoldComplete that allows for some form of evaluation:

HoldComplete can be used to freeze the result of ToExpression before it is evaluated:

Possible Issues (1)

HoldComplete affects only evaluation; input transformations are still applied: