influxdb/models/inline_strconv_parse.go

package models // import "github.com/influxdata/influxdb/models"

import (
	"strconv"
	"unsafe"
)

// parseIntBytes is a zero-alloc wrapper around strconv.ParseInt.
func parseIntBytes(b []byte, base int, bitSize int) (i int64, err error) {
	s := unsafeBytesToString(b)
	return strconv.ParseInt(s, base, bitSize)
}

// parseUintBytes is a zero-alloc wrapper around strconv.ParseUint.
func parseUintBytes(b []byte, base int, bitSize int) (i uint64, err error) {
	s := unsafeBytesToString(b)
	return strconv.ParseUint(s, base, bitSize)
}

// parseFloatBytes is a zero-alloc wrapper around strconv.ParseFloat.
func parseFloatBytes(b []byte, bitSize int) (float64, error) {
	s := unsafeBytesToString(b)
	return strconv.ParseFloat(s, bitSize)
}

// parseBoolBytes is a zero-alloc wrapper around strconv.ParseBool.
func parseBoolBytes(b []byte) (bool, error) {
	return strconv.ParseBool(unsafeBytesToString(b))
}

// unsafeBytesToString converts a []byte to a string without a heap allocation.
func unsafeBytesToString(in []byte) string {
	return *(*string)(unsafe.Pointer(&in))
}