Add strtold and wcstold to libmingwex.a

* mingwex/strtold.c: New file. * mingwex/wcstold.c: New file. * mingwex/ldtoa.c: New file. * mingwex/math/cephes_emath.h: New file. * mingwex/math/cephes_emath.c: New file. * mingwex/Makefile.in (DISTFILES): Add new files. (MATH_DISTFILES): Ditto. (STDLIB_OBJS): New. Define as strtold.c wcstold.c. (MATH_OBJS): Add cephes_emath.o. (LIB_OBJS): Add $(STDLIB_OBJS). * include/stdlib.h (strtold, wcstold): Add prototypes. * include/wchar.h (wcstold): Add prototype. Add missing ChangeLog entry for 2002-11-09.
2002-11-26 00:11:06 +00:00
parent 4e85569d11
commit 5362be5926
9 changed files with 3147 additions and 9 deletions
--- a/winsup/mingw/mingwex/wcstold.c
+++ b/winsup/mingw/mingwex/wcstold.c
@@ -0,0 +1,76 @@
+/*  Wide char wrapper for strtold
+ *  Revision history:
+ *  6 Nov 2002	Initial version.
+ *
+ *  Contributor:   Danny Smith <dannysmith@users.sourceforege.net>
+ */
+
+ /* This routine has been placed in the public domain.*/
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <locale.h>
+#include <wchar.h>
+#include <stdlib.h>
+#include <string.h>
+
+extern int __asctoe64(const char * __restrict__ ss,
+	       short unsigned int * __restrict__ y);
+
+
+static __inline__ unsigned int get_codepage (void)
+{
+  char* cp;
+
+  /*
+    locale :: "lang[_country[.code_page]]" 
+               | ".code_page"
+  */
+  if ((cp = strchr(setlocale(LC_CTYPE, NULL), '.')))
+    return atoi( cp + 1);
+  else
+    return 0;
+}
+
+long double wcstold (const wchar_t * __restrict__ wcs, wchar_t ** __restrict__ wcse)
+{
+  char * cs;
+  int i;
+  int lenldstr;
+  union
+  {
+    unsigned short int us[6];
+    long double ld;
+  } xx;
+
+  unsigned int cp = get_codepage ();   
+  
+  /* Allocate enough room for (possibly) mb chars */
+  cs = (char *) malloc ((wcslen(wcs)+1) * MB_CUR_MAX);
+
+  if (cp == 0) /* C locale */
+    {
+      for (i = 0; (wcs[i] != 0) && wcs[i] <= 255; i++)
+        cs[i] = (char) wcs[i];                                                                                                                                                                                                                                                                                                   
+      cs[i]  = '\0';
+    }
+  else
+    {
+      int nbytes = -1;
+      int mb_len = 0;
+      /* loop through till we hit null or invalid character */
+      for (i = 0; (wcs[i] != 0) && (nbytes != 0); i++)
+	{
+     	  nbytes = WideCharToMultiByte(cp, WC_COMPOSITECHECK | WC_SEPCHARS,
+				       wcs + i, 1, cs + mb_len, MB_CUR_MAX,
+				       NULL, NULL);
+	  mb_len += nbytes;
+	}
+      cs[mb_len] = '\0';
+    }
+  lenldstr =  __asctoe64( cs, xx.us);
+  free (cs);
+  if (wcse)
+    *wcse = (wchar_t*) wcs + lenldstr;
+  return xx.ld;
+}