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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libquadmath/printf/_itowa.h
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Diffstat (limited to 'libquadmath/printf/_itowa.h')
-rw-r--r--libquadmath/printf/_itowa.h83
1 files changed, 83 insertions, 0 deletions
diff --git a/libquadmath/printf/_itowa.h b/libquadmath/printf/_itowa.h
new file mode 100644
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--- /dev/null
+++ b/libquadmath/printf/_itowa.h
@@ -0,0 +1,83 @@
+/* Internal function for converting integers to ASCII.
+ Copyright (C) 1994,95,96,97,98,99,2002,2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _ITOWA_H
+#define _ITOWA_H 1
+
+/* Convert VALUE into ASCII in base BASE (2..16).
+ Write backwards starting the character just before BUFLIM.
+ Return the address of the first (left-to-right) character in the number.
+ Use upper case letters iff UPPER_CASE is nonzero. */
+
+static const wchar_t _itowa_lower_digits[16] = L_("0123456789abcdef");
+static const wchar_t _itowa_upper_digits[16] = L_("0123456789ABCDEF");
+
+static inline wchar_t *
+__attribute__ ((unused, always_inline))
+_itowa_word (unsigned long value, wchar_t *buflim,
+ unsigned int base, int upper_case)
+{
+ const wchar_t *digits = (upper_case
+ ? _itowa_upper_digits : _itowa_lower_digits);
+ wchar_t *bp = buflim;
+
+ switch (base)
+ {
+#define SPECIAL(Base) \
+ case Base: \
+ do \
+ *--bp = digits[value % Base]; \
+ while ((value /= Base) != 0); \
+ break
+
+ SPECIAL (10);
+ SPECIAL (16);
+ SPECIAL (8);
+ default:
+ do
+ *--bp = digits[value % base];
+ while ((value /= base) != 0);
+ }
+ return bp;
+}
+
+static inline wchar_t *
+__attribute__ ((unused, always_inline))
+_itowa (uint64_t value, wchar_t *buflim,
+ unsigned int base, int upper_case)
+{
+ const wchar_t *digits = (upper_case
+ ? _itowa_upper_digits : _itowa_lower_digits);
+ wchar_t *bp = buflim;
+
+ switch (base)
+ {
+ SPECIAL (10);
+ SPECIAL (16);
+ SPECIAL (8);
+ default:
+ do
+ *--bp = digits[value % base];
+ while ((value /= base) != 0);
+ }
+ return bp;
+}
+#undef SPECIAL
+
+#endif /* itowa.h */