diff options
author | Guo Mang <mang.guo@intel.com> | 2017-08-02 09:54:47 +0800 |
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committer | Guo Mang <mang.guo@intel.com> | 2017-09-05 19:45:08 +0800 |
commit | 6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8 (patch) | |
tree | 444372d92a0ae8991fe4d15eb3937df43690dfda /StdLib/LibC/Containers/Common/ModuloUtil.c | |
parent | b207c6434d7a5a4502975d322312e07017e8a8cb (diff) | |
download | edk2-platforms-6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8.tar.xz |
Remove core packages since we can get them from edk2 repository
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'StdLib/LibC/Containers/Common/ModuloUtil.c')
-rw-r--r-- | StdLib/LibC/Containers/Common/ModuloUtil.c | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/StdLib/LibC/Containers/Common/ModuloUtil.c b/StdLib/LibC/Containers/Common/ModuloUtil.c deleted file mode 100644 index 5f75698bd6..0000000000 --- a/StdLib/LibC/Containers/Common/ModuloUtil.c +++ /dev/null @@ -1,149 +0,0 @@ -/** @file
- Utility functions for performing basic math operations constrained within a
- modulus.
-
- These functions are intended to simplify small changes to a value which much
- remain within a specified modulus.
-
- NOTE: Changes must be less than or equal to the modulus specified by MaxVal.
-
- Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>
- This program and the accompanying materials are licensed and made available
- under the terms and conditions of the BSD License which accompanies this
- distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php.
-
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-**/
-#include <Uefi.h>
-#include <LibConfig.h>
-#include <assert.h>
-
-/** Counter = (Counter + 1) % MaxVal;
-
- Counter is always expected to be LESS THAN MaxVal.
- 0 <= Counter < MaxVal
-
- @param[in] Counter The value to be incremented.
- @param[in] MaxVal Modulus of the operation.
-
- @return Returns the result of incrementing Counter, modulus MaxVal.
- If Counter >= MaxVal, returns -1.
-**/
-INT32
-EFIAPI
-ModuloIncrement(
- UINT32 Counter,
- UINT32 MaxVal
- )
-{
- INT32 Temp;
-
- if(Counter < MaxVal) {
- Temp = (INT32)(Counter + 1);
- if(Temp >= (INT32)MaxVal) {
- Temp = 0;
- }
- }
- else {
- Temp = -1;
- }
- return Temp;
-}
-
-/** Counter = (Counter - 1) % MaxVal;
-
- Counter is always expected to be LESS THAN MaxVal.
- 0 <= Counter < MaxVal
-
- @param[in] Counter The value to be decremented.
- @param[in] MaxVal Modulus of the operation.
-
- @return Returns the result of decrementing Counter, modulus MaxVal.
- If Counter >= MaxVal, returns -1.
-**/
-INT32
-EFIAPI
-ModuloDecrement(
- UINT32 Counter,
- UINT32 MaxVal
- )
-{
- INT32 Temp;
-
- if(Counter < MaxVal) {
- Temp = (INT32)Counter - 1;
- // If Counter is zero, Temp will become -1.
- if(Temp < 0) {
- Temp = (INT32)MaxVal - 1;
- }
- }
- else {
- Temp = -1;
- }
-
- return Temp;
-}
-
-/** Decrement Counter but don't decrement past zero.
-
- @param[in] Counter The value to be decremented.
-
- @return Returns the result of decrementing Counter.
-**/
-UINT32
-EFIAPI
-BoundDecrement(
- UINT32 Counter
- )
-{
- return ((Counter > 0) ? (Counter - 1) : 0);
-}
-
-/** Increment Counter but don't increment past MaxVal.
- Counter should be maintained in the range (0 <= Counter < MaxVal).
-
- @param[in] Counter The value to be decremented.
- @param[in] MaxVal The upper bound for Counter.
-
- @return Returns the result of incrementing Counter.
-**/
-UINT32
-EFIAPI
-BoundIncrement(
- UINT32 Counter,
- UINT32 MaxVal
- )
-{
- return ((Counter < (MaxVal - 1)) ? (Counter + 1) : (MaxVal - 1));
-}
-
-/** Counter = (Counter + Increment) % MaxVal;
-
- @param[in] Counter The value to be incremented.
- @param[in] Increment The value to add to Counter.
- @param[in] MaxVal Modulus of the operation.
-
- @return Returns the result of adding Increment to Counter, modulus MaxVal,
- or -1 if Increment is larger than MaxVal.
-**/
-INT32
-EFIAPI
-ModuloAdd (
- UINT32 Counter,
- UINT32 Increment,
- UINT32 MaxVal
- )
-{
- UINT32 Temp;
-
- if(Increment > MaxVal) {
- return -1;
- }
- Temp = (Counter + Increment);
- while(Temp >= MaxVal) {
- Temp -= MaxVal;
- }
- return Temp;
-}
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