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authorRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
committerRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
commit0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch)
tree6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/stdlib/wcstoimax.c
downloadmusl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.gz
initial check-in, version 0.5.0v0.5.0
Diffstat (limited to 'src/stdlib/wcstoimax.c')
-rw-r--r--src/stdlib/wcstoimax.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/src/stdlib/wcstoimax.c b/src/stdlib/wcstoimax.c
new file mode 100644
index 00000000..861fcb54
--- /dev/null
+++ b/src/stdlib/wcstoimax.c
@@ -0,0 +1,24 @@
+#include <wchar.h>
+#include <inttypes.h>
+#include <errno.h>
+
+intmax_t wcstoimax(const wchar_t *s, wchar_t **p, int base)
+{
+ int sign = 0;
+ uintmax_t x;
+
+ /* Initial whitespace */
+ for (; iswspace(*s); s++);
+
+ /* Optional sign */
+ if (*s == '-') sign = *s++;
+ else if (*s == '+') s++;
+
+ x = wcstoumax(s, p, base);
+ if (x > INTMAX_MAX) {
+ if (!sign || -x != INTMAX_MIN)
+ errno = ERANGE;
+ return sign ? INTMAX_MIN : INTMAX_MAX;
+ }
+ return sign ? -x : x;
+}