util-vserver-0.30.208

[util-vserver.git] / ensc_fmt / fmt-internal.h

diff --git a/ensc_fmt/fmt-internal.h b/ensc_fmt/fmt-internal.h
new file mode 100644 (file)
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+++ b/ensc_fmt/fmt-internal.h
@@ -0,0 +1,60 @@
+// $Id: fmt-internal.h,v 1.2 2004/08/19 13:53:54 ensc Exp $    --*- c -*--
+
+// Copyright (C) 2003 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//  
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//  
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//  
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifndef H_UTIL_VSERVER_LIB_FMT_COMMON_H
+#define H_UTIL_VSERVER_LIB_FMT_COMMON_H
+
+#define DIGITS                 "0123456789abcdefghijklmnopqrstuvwxyz"
+
+#define FMT_P__(X,Y)           X ## Y
+#define FMT_P_(X,Y)            FMT_P__(X,Y)
+#define FMT_P(X)               FMT_P_(FMT_PREFIX, X)
+
+#define CONCAT__(x,y,z)                x ## y ## z
+#define CONCAT_(x,y,z)         CONCAT__(x,y,z)
+#define CONCAT(x,z)            CONCAT_(x, FMT_BITSIZE, z)
+
+#define FMT_FN(BASE,SZ)                                        \
+  do {                                                 \
+    register __typeof__(val)   v = val;                \
+    register size_t            l = 0;                  \
+                                                       \
+    if (ptr==0) {                                      \
+      do {                                             \
+        ++l;                                           \
+        v /= BASE;                                     \
+      } while (v!=0);                                  \
+    }                                                  \
+    else {                                             \
+      char                     buf[sizeof(val)*SZ];    \
+                                                       \
+      do {                                             \
+       register unsigned int   d = v%BASE;             \
+       v /= BASE;                                      \
+        ++l;                                           \
+        buf[sizeof(buf)-l] = DIGITS[d];                        \
+      } while (v!=0);                                  \
+                                                       \
+      memcpy(ptr, buf+sizeof(buf)-l, l);               \
+    }                                                  \
+                                                       \
+    return l;                                          \
+  } while (0)
+
+
+#endif //  H_UTIL_VSERVER_LIB_FMT_COMMON_H