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;
+  }