[expr] function available since [Tcl] 8.5:
Converts a number to ''some'' integral type (int, wide or bignum).

The name of this function is derived from French, via ALGOL.
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[LV] So, this is functionally similar to a cast? What happens when
the number being entiered doesn't fit into the size type? A bignum being
''cast'' into an int, for instance?  
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[Category Glossary]
[Category Command]