Changeset 9d8307a in mainline for uspace/lib/c/generic/stdlib.c

Timestamp:

2018-07-19T11:55:19Z (6 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

0d83cf6f

Parents:

42f5860

git-author:

Jiri Svoboda <jiri@…> (2018-07-18 17:54:45)

git-committer:

Jiri Svoboda <jiri@…> (2018-07-19 11:55:19)

Message:

Reimplement strtold function in libc.

File:

• uspace/lib/c/generic/stdlib.c (modified) (2 diffs)

uspace/lib/c/generic/stdlib.c

@@ -38 +38 @@
 #include <stdlib.h>
 #include "private/libc.h"
+#include "private/scanf.h"
 #include "private/stdlib.h"
+#include "private/stdio.h"
+#include "private/sstream.h"
 
 static int glbl_seed = 1;
@@ -48 +51 @@
 static FIBRIL_MUTEX_INITIALIZE(quick_exit_handlers_lock);
 
+/** Convert string to long double.
+ *
+ */
+long double strtold(const char *nptr, char **endptr)
+{
+        int numchar;
+        long double ld;
+        errno_t rc;
+        FILE f;
+
+        numchar = 0;
+        __sstream_init(nptr, &f);
+
+        rc = __fstrtold(&f, &numchar, SIZE_MAX, &ld);
+        if (rc != EOK) {
+                ld = 0;
+                if (endptr != NULL)
+                        *endptr = (char *) nptr;
+                errno = rc;
+        } else {
+                if (endptr != NULL)
+                        *endptr = (char *) __sstream_getpos(&f);
+        }
+
+        return ld;
+}
 
 int rand(void)