[[discuss what [tcl] considers a variable of type ''wide'']]

An [expr] function that converts a number to a "wide integer" (i.e. an integer of at least 64-bits precision).


As [JH] observes on [comp.lang.tcl], if you want a wide result, be sure to apply wide to one of the values in the expression - not the result of the expression.

In other words, this will not give you a wide result:

 expr wide( 80 * 1000000000 )

while this will:

 expr wide( 80 ) * 1000000000 

Of course, this applies to Tcl 8.4 and earlier. With Tcl 8.5, the expression
works without the wide!

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[[[Category Glossary]|[Category Internals]]]