Files
icicle/goicicle/curves/bn254/utils.go
ImmanuelSegol 8a11a2f60e some minor changes (#125)
Co-authored-by: Jeremy Felder <jeremy.felder1@gmail.com>
2023-07-18 20:17:16 +03:00

49 lines
1.1 KiB
Go

package bn254
import (
"encoding/binary"
"fmt"
"log"
"regexp"
"runtime"
"time"
)
// Function to convert [8]uint32 to [4]uint64
func ConvertUint32ArrToUint64Arr(arr32 [8]uint32) [4]uint64 {
var arr64 [4]uint64
for i := 0; i < len(arr32); i += 2 {
arr64[i/2] = (uint64(arr32[i]) << 32) | uint64(arr32[i+1])
}
return arr64
}
func ConvertUint64ArrToUint32Arr(arr64 [4]uint64) [8]uint32 {
var arr32 [8]uint32
for i, v := range arr64 {
b := make([]byte, 8)
binary.LittleEndian.PutUint64(b, v)
arr32[i*2] = binary.LittleEndian.Uint32(b[0:4])
arr32[i*2+1] = binary.LittleEndian.Uint32(b[4:8])
}
return arr32
}
func TimeTrack(start time.Time) {
elapsed := time.Since(start)
// Skip this function, and fetch the PC and file for its parent.
pc, _, _, _ := runtime.Caller(1)
// Retrieve a function object this functions parent.
funcObj := runtime.FuncForPC(pc)
// Regex to extract just the function name (and not the module path).
runtimeFunc := regexp.MustCompile(`^.*\.(.*)$`)
name := runtimeFunc.ReplaceAllString(funcObj.Name(), "$1")
log.Println(fmt.Sprintf("%s took %s", name, elapsed))
}