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authorJeff Johnston <jjohnstn@redhat.com>2001-09-14 01:12:33 +0400
committerJeff Johnston <jjohnstn@redhat.com>2001-09-14 01:12:33 +0400
commit7a2afbbb855e8b96234fd78b22698d028e785ea6 (patch)
tree617fa44b92d9b4b2bdaed083daf357195ffcb73e /newlib/libc/stdlib/strtoull_r.c
parentb011df87d14a660c498e57ac0d889def8480c603 (diff)
2001-09-13 Jeff Johnston <jjohnstn@redhat.com>
* libc/stdlib/Makefile.am: Add support to build strtoll_r.c and strtoull_r.c. * libc/stdlib/Makefile.in: Regenerated. * libc/stdlib/strtoll_r.c: New file. * libc/stdlib/strtoull_r.c: New file. * libc/stdio/local.h: Add prototypes for long long string conversion routines. * libc/stdio/vfscanf.c (__svfscanf_r): Add optional long long support tied to %L integer conversion specifier.
Diffstat (limited to 'newlib/libc/stdlib/strtoull_r.c')
-rw-r--r--newlib/libc/stdlib/strtoull_r.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/newlib/libc/stdlib/strtoull_r.c b/newlib/libc/stdlib/strtoull_r.c
new file mode 100644
index 000000000..014e4b649
--- /dev/null
+++ b/newlib/libc/stdlib/strtoull_r.c
@@ -0,0 +1,120 @@
+/*
+ This code is based on strtoul.c which has the following copyright.
+ It is used to convert a string into an unsigned long long.
+
+ long long __strtoull_r (struct _reent *rptr, const char *s,
+ char **ptr, int base);
+
+*/
+
+/*
+ * Copyright (c) 1990 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef __GNUC__
+
+#define _GNU_SOURCE
+#include <_ansi.h>
+#include <limits.h>
+#include <ctype.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <reent.h>
+
+/*
+ * Convert a string to an unsigned long long integer.
+ *
+ * Ignores `locale' stuff. Assumes that the upper and lower case
+ * alphabets and digits are each contiguous.
+ */
+unsigned long long
+_DEFUN (__strtoull_r, (rptr, nptr, endptr, base),
+ struct _reent *rptr _AND
+ _CONST char *nptr _AND
+ char **endptr _AND
+ int base)
+{
+ register const char *s = nptr;
+ register unsigned long long acc;
+ register int c;
+ register unsigned long long cutoff;
+ register int neg = 0, any, cutlim;
+
+ /*
+ * See strtol for comments as to the logic used.
+ */
+ do {
+ c = *s++;
+ } while (isspace(c));
+ if (c == '-') {
+ neg = 1;
+ c = *s++;
+ } else if (c == '+')
+ c = *s++;
+ if ((base == 0 || base == 16) &&
+ c == '0' && (*s == 'x' || *s == 'X')) {
+ c = s[1];
+ s += 2;
+ base = 16;
+ }
+ if (base == 0)
+ base = c == '0' ? 8 : 10;
+ cutoff = (unsigned long long)ULONG_LONG_MAX / (unsigned long long)base;
+ cutlim = (unsigned long long)ULONG_LONG_MAX % (unsigned long long)base;
+ for (acc = 0, any = 0;; c = *s++) {
+ if (isdigit(c))
+ c -= '0';
+ else if (isalpha(c))
+ c -= isupper(c) ? 'A' - 10 : 'a' - 10;
+ else
+ break;
+ if (c >= base)
+ break;
+ if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
+ any = -1;
+ else {
+ any = 1;
+ acc *= base;
+ acc += c;
+ }
+ }
+ if (any < 0) {
+ acc = ULONG_LONG_MAX;
+ rptr->_errno = ERANGE;
+ } else if (neg)
+ acc = -acc;
+ if (endptr != 0)
+ *endptr = (char *) (any ? s - 1 : nptr);
+ return (acc);
+}
+
+#endif /* __GNUC__ */