summaryrefslogtreecommitdiff
path: root/arch/powerpc/boot/stdlib.c
diff options
context:
space:
mode:
authorDavid Woodhouse <dwmw2@infradead.org>2007-10-13 14:58:23 +0100
committerDavid Woodhouse <dwmw2@infradead.org>2007-10-13 14:58:23 +0100
commitebf8889bd1fe3615991ff4494635d237280652a2 (patch)
tree10fb735717122bbb86474339eac07f26e7ccdf40 /arch/powerpc/boot/stdlib.c
parentb160292cc216a50fd0cd386b0bda2cd48352c73b (diff)
parent752097cec53eea111d087c545179b421e2bde98a (diff)
downloadlwn-ebf8889bd1fe3615991ff4494635d237280652a2.tar.gz
lwn-ebf8889bd1fe3615991ff4494635d237280652a2.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/powerpc/boot/stdlib.c')
-rw-r--r--arch/powerpc/boot/stdlib.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/powerpc/boot/stdlib.c b/arch/powerpc/boot/stdlib.c
new file mode 100644
index 000000000000..e00d58c29eea
--- /dev/null
+++ b/arch/powerpc/boot/stdlib.c
@@ -0,0 +1,45 @@
+/*
+ * stdlib functions
+ *
+ * Author: Scott Wood <scottwood@freescale.com>
+ *
+ * Copyright (c) 2007 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include "stdlib.h"
+
+/* Not currently supported: leading whitespace, sign, 0x prefix, zero base */
+unsigned long long int strtoull(const char *ptr, char **end, int base)
+{
+ unsigned long long ret = 0;
+
+ if (base > 36)
+ goto out;
+
+ while (*ptr) {
+ int digit;
+
+ if (*ptr >= '0' && *ptr <= '9' && *ptr < '0' + base)
+ digit = *ptr - '0';
+ else if (*ptr >= 'A' && *ptr < 'A' + base - 10)
+ digit = *ptr - 'A' + 10;
+ else if (*ptr >= 'a' && *ptr < 'a' + base - 10)
+ digit = *ptr - 'a' + 10;
+ else
+ break;
+
+ ret *= base;
+ ret += digit;
+ ptr++;
+ }
+
+out:
+ if (end)
+ *end = (char *)ptr;
+
+ return ret;
+}