set!

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set!

$\begin{usage} set!(t, x, v)\\ t.x := v \end{usage}$

Signature

set!: (%, Symbol, T) $\to$ T

$\begin{params} {\em t} & \% & A symbol table\\ {\em x} & \htmlref{\texttt{Symbol}}{Symbol} & A variable name\\ {\em v} & T & A value\\\end{params}$

$\begin{descr} Assigns the value v to x in t. If x already had a value in t, the older value is lost. \end{descr}$

$\begin{retval} Returns v. \end{retval}$

Manuel Bronstein 2000-12-13