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eaa52ade0f
Signed-off-by: darylm503 Reviewed-by: jljusten Reviewed-by: geekboy15a git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12620 6f19259b-4bc3-4df7-8a09-765794883524
112 lines
4.3 KiB
C
112 lines
4.3 KiB
C
/** @file
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Comparison Functions for <string.h>.
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Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Uefi.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <LibConfig.h>
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#include <ctype.h>
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#include <string.h>
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/** The memcmp function compares the first n characters of the object pointed
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to by s1 to the first n characters of the object pointed to by s2.
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@return The memcmp function returns an integer greater than, equal to, or
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less than zero, accordingly as the object pointed to by s1 is
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greater than, equal to, or less than the object pointed to by s2.
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**/
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int memcmp(const void *s1, const void *s2, size_t n)
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{
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return (int)CompareMem( s1, s2, n);
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}
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/** The strcmp function compares the string pointed to by s1 to the string
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pointed to by s2.
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@return The strcmp function returns an integer greater than, equal to, or
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less than zero, accordingly as the string pointed to by s1 is
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greater than, equal to, or less than the string pointed to by s2.
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**/
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int strcmp(const char *s1, const char *s2)
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{
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return (int)AsciiStrCmp( s1, s2);
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}
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/** The strcoll function compares the string pointed to by s1 to the string
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pointed to by s2, both interpreted as appropriate to the LC_COLLATE
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category of the current locale.
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@return The strcoll function returns an integer greater than, equal to,
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or less than zero, accordingly as the string pointed to by s1 is
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greater than, equal to, or less than the string pointed to by s2
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when both are interpreted as appropriate to the current locale.
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**/
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int strcoll(const char *s1, const char *s2)
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{
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/* LC_COLLATE is unimplemented, hence always "C" */
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return (strcmp(s1, s2));
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}
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/** The strncmp function compares not more than n characters (characters that
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follow a null character are not compared) from the array pointed to by s1
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to the array pointed to by s2.
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@return The strncmp function returns an integer greater than, equal to,
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or less than zero, accordingly as the possibly null-terminated
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array pointed to by s1 is greater than, equal to, or less than
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the possibly null-terminated array pointed to by s2.
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**/
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int strncmp(const char *s1, const char *s2, size_t n)
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{
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return (int)AsciiStrnCmp( s1, s2, n);
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}
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/** The strxfrm function transforms the string pointed to by Src and places the
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resulting string into the array pointed to by Dest. The transformation is
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such that if the strcmp function is applied to two transformed strings, it
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returns a value greater than, equal to, or less than zero, corresponding to
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the result of the strcoll function applied to the same two original
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strings. No more than Len characters are placed into the resulting array
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pointed to by Dest, including the terminating null character. If Len is zero,
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Dest is permitted to be a null pointer. If copying takes place between
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objects that overlap, the behavior is undefined.
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@return The strxfrm function returns the length of the transformed string
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(not including the terminating null character). If the value
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returned is Len or more, the contents of the array pointed to by Dest
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are indeterminate.
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**/
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size_t strxfrm(char * __restrict Dest, const char * __restrict Src, size_t Len)
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{
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size_t srclen, copysize;
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/*
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* Since locales are unimplemented, this is just a copy.
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*/
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srclen = strlen(Src);
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if (Len != 0) {
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copysize = srclen < Len ? srclen : Len - 1;
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(void)memcpy(Dest, Src, copysize);
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Dest[copysize] = 0;
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}
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return (srclen);
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}
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/** Case agnostic string comparison for NetBSD compatibility. **/
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int
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strcasecmp(const char *s1, const char *s2)
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{
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return (int)AsciiStriCmp( s1, s2);
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}
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