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Pragma that tells the compiler to use integer operations from here to the end of the enclosing block. Improves processing time on systems without floating-point hardware support.
use integer; $x = 10/3; # $x is now 3, not 3.33333333333333333
Use the no integer directive to turn off integer inside an inner block.
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| 8.124. if |  | 8.126. IO |
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