runxiyu.tngl.sh
Fast implementation of Git in pure Go
internal/intconv: Split
+2
internal/intconv/doc.go
+2
internal/intconv/doc.go
+15
internal/intconv/i64_i32.go
+15
internal/intconv/i64_i32.go
···
1
+
package intconv
2
+
3
+
import (
4
+
"fmt"
5
+
"math"
6
+
)
7
+
8
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// Int64ToInt32 converts v to int32, returning an error if it overflows.
9
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func Int64ToInt32(v int64) (int32, error) {
10
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if v < math.MinInt32 || v > math.MaxInt32 {
11
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return 0, fmt.Errorf("intconv: int64 %d overflows int32", v)
12
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}
13
+
14
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return int32(v), nil
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}
+12
internal/intconv/i64_u64.go
+12
internal/intconv/i64_u64.go
+15
internal/intconv/i_u32.go
+15
internal/intconv/i_u32.go
···
1
+
package intconv
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+
3
+
import (
4
+
"fmt"
5
+
"math"
6
+
)
7
+
8
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// IntToUint32 converts v to uint32, returning an error if it overflows.
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func IntToUint32(v int) (uint32, error) {
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if v < 0 || v > math.MaxUint32 {
11
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return 0, fmt.Errorf("intconv: int %d overflows uint32", v)
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}
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14
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return uint32(v), nil
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}
+12
internal/intconv/i_u64.go
+12
internal/intconv/i_u64.go
-97
internal/intconv/intconv.go
-97
internal/intconv/intconv.go
···
1
-
// Package intconv provides checked integer conversion helpers.
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package intconv
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-
4
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import (
5
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"fmt"
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"math"
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)
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// Uint64ToInt converts v to int, returning an error if it overflows.
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func Uint64ToInt(v uint64) (int, error) {
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if v > uint64(math.MaxInt) {
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return 0, fmt.Errorf("intconv: uint64 %d overflows int", v)
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}
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return int(v), nil
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}
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// UintptrToInt converts v to int, returning an error if it overflows.
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func UintptrToInt(v uintptr) (int, error) {
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if v > uintptr(math.MaxInt) {
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return 0, fmt.Errorf("intconv: uintptr %d overflows int", v)
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}
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return int(v), nil
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}
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// IntToUint64 converts v to uint64, returning an error if v is negative.
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func IntToUint64(v int) (uint64, error) {
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if v < 0 {
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return 0, fmt.Errorf("intconv: int %d is negative", v)
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}
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return uint64(v), nil
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}
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// IntToUint32 converts v to uint32, returning an error if it overflows.
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func IntToUint32(v int) (uint32, error) {
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if v < 0 || v > math.MaxUint32 {
39
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return 0, fmt.Errorf("intconv: int %d overflows uint32", v)
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}
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return uint32(v), nil
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}
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// Uint64ToInt64 converts v to int64, returning an error if it overflows.
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func Uint64ToInt64(v uint64) (int64, error) {
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if v > math.MaxInt64 {
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return 0, fmt.Errorf("intconv: uint64 %d overflows int64", v)
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}
50
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51
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return int64(v), nil
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}
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// Int64ToUint64 converts v to uint64, returning an error if v is negative.
55
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func Int64ToUint64(v int64) (uint64, error) {
56
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if v < 0 {
57
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return 0, fmt.Errorf("intconv: int64 %d is negative", v)
58
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}
59
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60
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return uint64(v), nil
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}
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63
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// Int64ToInt32 converts v to int32, returning an error if it overflows.
64
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func Int64ToInt32(v int64) (int32, error) {
65
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if v < math.MinInt32 || v > math.MaxInt32 {
66
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return 0, fmt.Errorf("intconv: int64 %d overflows int32", v)
67
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}
68
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69
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return int32(v), nil
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}
71
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72
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// SignExtendByteToUint32 sign-extends b as a signed 8-bit integer into uint32.
73
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func SignExtendByteToUint32(b byte) uint32 {
74
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if b&0x80 == 0 {
75
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return uint32(b)
76
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}
77
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78
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return 0xFFFFFF00 | uint32(b)
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}
80
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81
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// Uint32ToUint8 converts v to uint8, returning an error if it overflows.
82
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func Uint32ToUint8(v uint32) (uint8, error) {
83
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if v > math.MaxUint8 {
84
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return 0, fmt.Errorf("intconv: uint32 %d overflows uint8", v)
85
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}
86
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87
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return uint8(v), nil
88
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}
89
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90
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// Uint32ToInt converts v to int, returning an error if it overflows.
91
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func Uint32ToInt(v uint32) (int, error) {
92
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if uint64(v) > uint64(math.MaxInt) {
93
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return 0, fmt.Errorf("intconv: uint32 %d overflows int", v)
94
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}
95
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96
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return int(v), nil
97
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}
+10
internal/intconv/se_u8_u32.go
+10
internal/intconv/se_u8_u32.go
+15
internal/intconv/u32_i.go
+15
internal/intconv/u32_i.go
···
1
+
package intconv
2
+
3
+
import (
4
+
"fmt"
5
+
"math"
6
+
)
7
+
8
+
// Uint32ToInt converts v to int, returning an error if it overflows.
9
+
func Uint32ToInt(v uint32) (int, error) {
10
+
if uint64(v) > uint64(math.MaxInt) {
11
+
return 0, fmt.Errorf("intconv: uint32 %d overflows int", v)
12
+
}
13
+
14
+
return int(v), nil
15
+
}
+15
internal/intconv/u32_u8.go
+15
internal/intconv/u32_u8.go
···
1
+
package intconv
2
+
3
+
import (
4
+
"fmt"
5
+
"math"
6
+
)
7
+
8
+
// Uint32ToUint8 converts v to uint8, returning an error if it overflows.
9
+
func Uint32ToUint8(v uint32) (uint8, error) {
10
+
if v > math.MaxUint8 {
11
+
return 0, fmt.Errorf("intconv: uint32 %d overflows uint8", v)
12
+
}
13
+
14
+
return uint8(v), nil
15
+
}
+15
internal/intconv/u64_i.go
+15
internal/intconv/u64_i.go
···
1
+
package intconv
2
+
3
+
import (
4
+
"fmt"
5
+
"math"
6
+
)
7
+
8
+
// Uint64ToInt converts v to int, returning an error if it overflows.
9
+
func Uint64ToInt(v uint64) (int, error) {
10
+
if v > uint64(math.MaxInt) {
11
+
return 0, fmt.Errorf("intconv: uint64 %d overflows int", v)
12
+
}
13
+
14
+
return int(v), nil
15
+
}
+15
internal/intconv/u64_i64.go
+15
internal/intconv/u64_i64.go
···
1
+
package intconv
2
+
3
+
import (
4
+
"fmt"
5
+
"math"
6
+
)
7
+
8
+
// Uint64ToInt64 converts v to int64, returning an error if it overflows.
9
+
func Uint64ToInt64(v uint64) (int64, error) {
10
+
if v > math.MaxInt64 {
11
+
return 0, fmt.Errorf("intconv: uint64 %d overflows int64", v)
12
+
}
13
+
14
+
return int64(v), nil
15
+
}
+15
internal/intconv/uptr_int.go
+15
internal/intconv/uptr_int.go
···
1
+
package intconv
2
+
3
+
import (
4
+
"fmt"
5
+
"math"
6
+
)
7
+
8
+
// UintptrToInt converts v to int, returning an error if it overflows.
9
+
func UintptrToInt(v uintptr) (int, error) {
10
+
if v > uintptr(math.MaxInt) {
11
+
return 0, fmt.Errorf("intconv: uintptr %d overflows int", v)
12
+
}
13
+
14
+
return int(v), nil
15
+
}