aboutsummaryrefslogtreecommitdiff
path: root/internal/intconv/intconv.go
diff options
context:
space:
mode:
Diffstat (limited to 'internal/intconv/intconv.go')
-rw-r--r--internal/intconv/intconv.go97
1 files changed, 0 insertions, 97 deletions
diff --git a/internal/intconv/intconv.go b/internal/intconv/intconv.go
deleted file mode 100644
index 08530265..00000000
--- a/internal/intconv/intconv.go
+++ /dev/null
@@ -1,97 +0,0 @@
-// Package intconv provides checked integer conversion helpers.
-package intconv
-
-import (
- "fmt"
- "math"
-)
-
-// Uint64ToInt converts v to int, returning an error if it overflows.
-func Uint64ToInt(v uint64) (int, error) {
- if v > uint64(math.MaxInt) {
- return 0, fmt.Errorf("intconv: uint64 %d overflows int", v)
- }
-
- return int(v), nil
-}
-
-// UintptrToInt converts v to int, returning an error if it overflows.
-func UintptrToInt(v uintptr) (int, error) {
- if v > uintptr(math.MaxInt) {
- return 0, fmt.Errorf("intconv: uintptr %d overflows int", v)
- }
-
- return int(v), nil
-}
-
-// IntToUint64 converts v to uint64, returning an error if v is negative.
-func IntToUint64(v int) (uint64, error) {
- if v < 0 {
- return 0, fmt.Errorf("intconv: int %d is negative", v)
- }
-
- return uint64(v), nil
-}
-
-// IntToUint32 converts v to uint32, returning an error if it overflows.
-func IntToUint32(v int) (uint32, error) {
- if v < 0 || v > math.MaxUint32 {
- return 0, fmt.Errorf("intconv: int %d overflows uint32", v)
- }
-
- return uint32(v), nil
-}
-
-// Uint64ToInt64 converts v to int64, returning an error if it overflows.
-func Uint64ToInt64(v uint64) (int64, error) {
- if v > math.MaxInt64 {
- return 0, fmt.Errorf("intconv: uint64 %d overflows int64", v)
- }
-
- return int64(v), nil
-}
-
-// Int64ToUint64 converts v to uint64, returning an error if v is negative.
-func Int64ToUint64(v int64) (uint64, error) {
- if v < 0 {
- return 0, fmt.Errorf("intconv: int64 %d is negative", v)
- }
-
- return uint64(v), nil
-}
-
-// Int64ToInt32 converts v to int32, returning an error if it overflows.
-func Int64ToInt32(v int64) (int32, error) {
- if v < math.MinInt32 || v > math.MaxInt32 {
- return 0, fmt.Errorf("intconv: int64 %d overflows int32", v)
- }
-
- return int32(v), nil
-}
-
-// SignExtendByteToUint32 sign-extends b as a signed 8-bit integer into uint32.
-func SignExtendByteToUint32(b byte) uint32 {
- if b&0x80 == 0 {
- return uint32(b)
- }
-
- return 0xFFFFFF00 | uint32(b)
-}
-
-// Uint32ToUint8 converts v to uint8, returning an error if it overflows.
-func Uint32ToUint8(v uint32) (uint8, error) {
- if v > math.MaxUint8 {
- return 0, fmt.Errorf("intconv: uint32 %d overflows uint8", v)
- }
-
- return uint8(v), nil
-}
-
-// Uint32ToInt converts v to int, returning an error if it overflows.
-func Uint32ToInt(v uint32) (int, error) {
- if uint64(v) > uint64(math.MaxInt) {
- return 0, fmt.Errorf("intconv: uint32 %d overflows int", v)
- }
-
- return int(v), nil
-}