Standard Libraries for EDK II.

This set of three packages: AppPkg, StdLib, StdLibPrivateInternalFiles; contains the implementation of libraries based upon non-UEFI standards such as ISO/IEC-9899, the library portion of the C Language Standard, POSIX, etc.

AppPkg contains applications that make use of the standard libraries defined in the StdLib Package.

StdLib contains header (include) files and the implementations of the standard libraries.

StdLibPrivateInternalFiles contains files for the exclusive use of the library implementations in StdLib.  These files should never be directly referenced from applications or other code.


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11600 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 108 insertions, 0 deletions

diff --git a/StdLib/LibC/gdtoa/strtopx.c b/StdLib/LibC/gdtoa/strtopx.c
new file mode 100644
index 0000000000..5dce12e0c6
--- /dev/null
+++ b/StdLib/LibC/gdtoa/strtopx.c
@@ -0,0 +1,108 @@
+/* $NetBSD: strtopx.c,v 1.3.14.1 2008/04/08 21:10:55 jdc Exp $ */

+

+/****************************************************************

+

+The author of this software is David M. Gay.

+

+Copyright (C) 1998, 2000 by Lucent Technologies

+All Rights Reserved

+

+Permission to use, copy, modify, and distribute this software and

+its documentation for any purpose and without fee is hereby

+granted, provided that the above copyright notice appear in all

+copies and that both that the copyright notice and this

+permission notice and warranty disclaimer appear in supporting

+documentation, and that the name of Lucent or any of its entities

+not be used in advertising or publicity pertaining to

+distribution of the software without specific, written prior

+permission.

+

+LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.

+IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY

+SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER

+IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,

+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF

+THIS SOFTWARE.

+

+****************************************************************/

+

+/* Please send bug reports to David M. Gay (dmg at acm dot org,

+ * with " at " changed at "@" and " dot " changed to ".").  */

+#include  <LibConfig.h>

+

+#include "gdtoaimp.h"

+

+#undef _0

+#undef _1

+

+/* one or the other of IEEE_BIG_ENDIAN or IEEE_LITTLE_ENDIAN should be #defined */

+

+#ifdef IEEE_BIG_ENDIAN

+#define _0 0

+#define _1 1

+#define _2 2

+#define _3 3

+#define _4 4

+#endif

+#ifdef IEEE_LITTLE_ENDIAN

+#define _0 4

+#define _1 3

+#define _2 2

+#define _3 1

+#define _4 0

+#endif

+

+ int

+#ifdef KR_headers

+strtopx(s, sp, V) CONST char *s; char **sp; void *V;

+#else

+strtopx(CONST char *s, char **sp, void *V)

+#endif

+{

+  static CONST FPI fpi = { 64, 1-16383-64+1, 32766 - 16383 - 64 + 1, 1, SI };

+  ULong bits[2];

+  Long expt;

+  int k;

+  UShort *L = (UShort*)V;

+

+  k = strtodg(s, sp, &fpi, &expt, bits);

+  if (k == STRTOG_NoMemory)

+    return k;

+  switch(k & STRTOG_Retmask) {

+    case STRTOG_NoNumber:

+    case STRTOG_Zero:

+    L[0] = L[1] = L[2] = L[3] = L[4] = 0;

+    break;

+

+    case STRTOG_Denormal:

+    L[_0] = 0;

+    goto normal_bits;

+

+    case STRTOG_Normal:

+    case STRTOG_NaNbits:

+    L[_0] = (UShort)(expt + 0x3fff + 63);

+ normal_bits:

+    L[_4] = (UShort)bits[0];

+    L[_3] = (UShort)(bits[0] >> 16);

+    L[_2] = (UShort)bits[1];

+    L[_1] = (UShort)(bits[1] >> 16);

+    break;

+

+    case STRTOG_Infinite:

+    L[_0] = 0x7fff;

+    L[_1] = L[_2] = L[_3] = L[_4] = 0;

+    break;

+

+    case STRTOG_NaN:

+    L[0] = ldus_QNAN0;

+    L[1] = ldus_QNAN1;

+    L[2] = ldus_QNAN2;

+    L[3] = ldus_QNAN3;

+    L[4] = ldus_QNAN4;

+    }

+  if (k & STRTOG_Neg)

+    L[_0] |= 0x8000;

+  return k;

+  }