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// Copyright 2024 The Libc Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package libc // import "modernc.org/libc"
import (
"sync/atomic"
"unsafe"
"golang.org/x/exp/constraints"
)
func X__sync_add_and_fetch[T constraints.Integer](t *TLS, p uintptr, v T) T {
switch unsafe.Sizeof(v) {
case 4:
return T(atomic.AddInt32((*int32)(unsafe.Pointer(p)), int32(v)))
case 8:
return T(atomic.AddInt64((*int64)(unsafe.Pointer(p)), int64(v)))
default:
panic(todo(""))
}
}
func X__sync_sub_and_fetch[T constraints.Integer](t *TLS, p uintptr, v T) T {
switch unsafe.Sizeof(v) {
case 4:
return T(atomic.AddInt32((*int32)(unsafe.Pointer(p)), -int32(v)))
case 8:
return T(atomic.AddInt64((*int64)(unsafe.Pointer(p)), -int64(v)))
default:
panic(todo(""))
}
}
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