80 lines
1.7 KiB
Objective-C
80 lines
1.7 KiB
Objective-C
// Copyright 2008 Cyrus Najmabadi
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#import "Utilities.h"
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int64_t convertFloat64ToInt64(Float64 v) {
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union { Float64 f; int64_t i; } u;
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u.f = v;
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return u.i;
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}
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int32_t convertFloat32ToInt32(Float32 v) {
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union { Float32 f; int32_t i; } u;
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u.f = v;
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return u.i;
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}
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Float64 convertInt64ToFloat64(int64_t v) {
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union { Float64 f; int64_t i; } u;
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u.i = v;
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return u.f;
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}
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Float32 convertInt32ToFloat32(int32_t v) {
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union { Float32 f; int32_t i; } u;
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u.i = v;
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return u.f;
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}
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uint64_t convertInt64ToUInt64(int64_t v) {
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union { int64_t i; uint64_t u; } u;
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u.i = v;
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return u.u;
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}
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int64_t convertUInt64ToInt64(uint64_t v) {
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union { int64_t i; uint64_t u; } u;
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u.u = v;
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return u.i;
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}
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uint32_t convertInt32ToUInt32(int32_t v) {
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union { int32_t i; uint32_t u; } u;
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u.i = v;
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return u.u;
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}
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int64_t convertUInt32ToInt32(uint32_t v) {
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union { int32_t i; uint32_t u; } u;
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u.u = v;
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return u.i;
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}
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int32_t logicalRightShift32(int32_t value, int32_t spaces) {
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return (int32_t)convertUInt32ToInt32((convertInt32ToUInt32(value) >> spaces));
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}
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int64_t logicalRightShift64(int64_t value, int32_t spaces) {
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return convertUInt64ToInt64((convertInt64ToUInt64(value) >> spaces));
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}
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