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Ingy döt Net 2013-04-10 23:57:08 -07:00
parent 47bf37c096
commit b83f433714
12433 changed files with 156208 additions and 123 deletions
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12
Task/Safe-addition/Tcl/safe-addition-1.tcl Normal file
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package require critcl
package provide stepaway 1.0
critcl::ccode {
#include <math.h>
#include <float.h>
}
critcl::cproc stepup {double value} double {
return nextafter(value, DBL_MAX);
}
critcl::cproc stepdown {double value} double {
return nextafter(value, -DBL_MAX);
}

5
Task/Safe-addition/Tcl/safe-addition-2.tcl Normal file
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package require stepaway
proc safe+ {a b} {
set val [expr {double($a) + $b}]
return [list [stepdown $val] [stepup $val]]
}