aboutsummaryrefslogtreecommitdiffstats
path: root/strtou64.c
diff options
context:
space:
mode:
authorMattias Andrée <maandree@kth.se>2022-06-10 19:34:11 +0200
committerMattias Andrée <maandree@kth.se>2022-06-10 19:34:11 +0200
commit5d2bbca39c79dcc73060ac480a4e229affef0a14 (patch)
tree835ab061b3c1c5f1e80c6e76ef94751f78416929 /strtou64.c
parentfix typo (diff)
downloadlibsimple-5d2bbca39c79dcc73060ac480a4e229affef0a14.tar.gz
libsimple-5d2bbca39c79dcc73060ac480a4e229affef0a14.tar.bz2
libsimple-5d2bbca39c79dcc73060ac480a4e229affef0a14.tar.xz
Add strto[u]{hh,h,z}, strto{i,u}{,8,16,32,64}
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'strtou64.c')
-rw-r--r--strtou64.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/strtou64.c b/strtou64.c
new file mode 100644
index 0000000..1deb3a5
--- /dev/null
+++ b/strtou64.c
@@ -0,0 +1,31 @@
+/* See LICENSE file for copyright and license details. */
+#include "libsimple.h"
+#ifndef TEST
+
+#define RET_MAX 18446744073709551615ULL
+
+
+uint_least64_t
+libsimple_strtou64(const char *restrict nptr, char **restrict end, int base) /* TODO test, man */
+{
+ uintmax_t r = strtoumax(nptr, end, base);
+#if UINTMAX_MAX > RET_MAX
+ if(r > RET_MAX) {
+ r = RET_MAX;
+ errno = ERANGE;
+ }
+#endif
+ return (uint_least64_t)r;
+}
+
+
+#else
+#include "test.h"
+
+int
+main(void)
+{
+ return 0;
+}
+
+#endif