Курнат Андрей
138 lines
3.6 KiB
Go
138 lines
3.6 KiB
Go
package mathutil
|
|
|
|
import "github.com/gookit/goutil/comdef"
|
|
|
|
// IsNumeric returns true if the given character is a numeric, otherwise false.
|
|
func IsNumeric(c byte) bool { return c >= '0' && c <= '9' }
|
|
|
|
// IsInteger strict check the given value is an integer(intX,uintX), otherwise false.
|
|
func IsInteger(val any) bool {
|
|
switch val.(type) {
|
|
case int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64, uintptr:
|
|
return true
|
|
default:
|
|
return false
|
|
}
|
|
}
|
|
|
|
// IsFloat returns true if the given character is a float(32/64), otherwise false.
|
|
func IsFloat(val any) bool {
|
|
switch val.(type) {
|
|
case float32, float64:
|
|
return true
|
|
default:
|
|
return false
|
|
}
|
|
}
|
|
|
|
// Compare any intX,floatX value by given op. returns `first op(=,!=,<,<=,>,>=) second`
|
|
//
|
|
// Usage:
|
|
//
|
|
// mathutil.Compare(2, 3, ">") // false
|
|
// mathutil.Compare(2, 1.3, ">") // true
|
|
// mathutil.Compare(2.2, 1.3, ">") // true
|
|
// mathutil.Compare(2.1, 2, ">") // true
|
|
func Compare(first, second any, op string) bool {
|
|
if first == nil || second == nil {
|
|
return false
|
|
}
|
|
|
|
switch fVal := first.(type) {
|
|
case float64:
|
|
if sVal, err := ToFloat(second); err == nil {
|
|
return CompFloat(fVal, sVal, op)
|
|
}
|
|
case float32:
|
|
if sVal, err := ToFloat(second); err == nil {
|
|
return CompFloat(float64(fVal), sVal, op)
|
|
}
|
|
default: // as int64
|
|
if int1, err := ToInt64(first); err == nil {
|
|
if int2, err := ToInt64(second); err == nil {
|
|
return CompInt64(int1, int2, op)
|
|
}
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// CompInt compare all intX,uintX type value. returns `first op(=,!=,<,<=,>,>=) second`
|
|
func CompInt[T comdef.Xint](first, second T, op string) (ok bool) {
|
|
return CompValue(first, second, op)
|
|
}
|
|
|
|
// CompInt64 compare int64 value. returns `first op(=,!=,<,<=,>,>=) second`
|
|
func CompInt64(first, second int64, op string) bool {
|
|
return CompValue(first, second, op)
|
|
}
|
|
|
|
// CompFloat compare float64,float32 value. returns `first op(=,!=,<,<=,>,>=) second`
|
|
func CompFloat[T comdef.Float](first, second T, op string) (ok bool) {
|
|
return CompValue(first, second, op)
|
|
}
|
|
|
|
// CompValue compare intX,uintX,floatX value. returns `first op(=,!=,<,<=,>,>=) second`
|
|
func CompValue[T comdef.Number](first, second T, op string) (ok bool) {
|
|
switch op {
|
|
case "<", "lt":
|
|
ok = first < second
|
|
case "<=", "lte":
|
|
ok = first <= second
|
|
case ">", "gt":
|
|
ok = first > second
|
|
case ">=", "gte":
|
|
ok = first >= second
|
|
case "=", "eq":
|
|
ok = first == second
|
|
case "!=", "ne", "neq":
|
|
ok = first != second
|
|
}
|
|
return
|
|
}
|
|
|
|
// InRange check if val in int/float range [min, max]
|
|
func InRange[T comdef.Number](val, min, max T) bool {
|
|
return val >= min && val <= max
|
|
}
|
|
|
|
// OutRange check if val not in int/float range [min, max]
|
|
func OutRange[T comdef.Number](val, min, max T) bool {
|
|
return val < min || val > max
|
|
}
|
|
|
|
// InUintRange check if val in unit range [min, max]
|
|
func InUintRange[T comdef.Uint](val, min, max T) bool {
|
|
if max == 0 {
|
|
return val >= min
|
|
}
|
|
return val >= min && val <= max
|
|
}
|
|
|
|
// InDelta Check whether two floating-point numbers are equal within a specified margin of error
|
|
//
|
|
// Params:
|
|
// want - 期望的浮点数值
|
|
// give - 实际给定的浮点数值
|
|
// delta - 允许的误差范围
|
|
func InDelta[T comdef.Float](want, give T, delta float64) bool {
|
|
diff := float64(want) - float64(give)
|
|
if diff < 0 {
|
|
diff = -diff
|
|
}
|
|
return diff <= delta
|
|
}
|
|
|
|
// InDeltaAny Check whether two floating-point numbers are equal within a specified margin of error
|
|
func InDeltaAny(want, give any, delta float64) bool {
|
|
wantVal, err := ToFloat(want)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
giveVal, err := ToFloat(give)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
return InDelta(wantVal, giveVal, delta)
|
|
} |