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// Package math contains set of basic math functions to be able to perform simple arithmetic operations
package math
// AddInt -
func AddInt(n ...int64) int64 {
x := int64(0)
for _, i := range n {
x += i
}
return x
}
// MulInt -
func MulInt(n ...int64) int64 {
var x int64 = 1
for _, i := range n {
x *= i
}
return x
}
// Seq - return a sequence from `start` to `end`, in steps of `step`.
func Seq(start, end, step int64) []int64 {
// a step of 0 just returns an empty sequence
if step == 0 {
return []int64{}
}
// handle cases where step has wrong sign
if end < start && step > 0 {
step = -step
}
if end > start && step < 0 {
step = -step
}
// adjust the end so it aligns exactly (avoids infinite loop!)
end -= (end - start) % step
seq := []int64{start}
last := start
for last != end {
last = seq[len(seq)-1] + step
seq = append(seq, last)
}
return seq
}
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