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authorNicolas Schodet2023-03-06 17:36:31 +0100
committerNicolas Schodet2023-03-06 17:36:31 +0100
commitd383f2bcdb6ff13cc562fce1ff55d826035debad (patch)
treef5cd0440869b8ba823fd254b361cdefe95e153b4 /lib/sscanf.c
parent8fce63fda48a6593870ffd3c584c9dd0808bc2c2 (diff)
Simplify source tree
Now just use make in the root directory to build.
Diffstat (limited to 'lib/sscanf.c')
-rw-r--r--lib/sscanf.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/lib/sscanf.c b/lib/sscanf.c
new file mode 100644
index 0000000..a4f5e64
--- /dev/null
+++ b/lib/sscanf.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2010 Nicolas Schodet
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/* NXT source code is using sscanf to parse a float. Newlib sscanf will pull
+ * too many code, so here is a stub which implement just what is used. */
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+
+int
+sscanf (const char *str, const char *fmt, ...)
+{
+ va_list ap;
+ float *f;
+ char *tailptr;
+ /* Only support use in NXT source code. */
+ if (fmt[0] != '%' || fmt[1] != 'f' || fmt[2] != '\0')
+ return 0;
+ /* Retrieve float pointer. */
+ va_start (ap, fmt);
+ f = va_arg (ap, float *);
+ va_end (ap);
+ /* Parse using the nice strtod. */
+ *f = strtod (str, &tailptr);
+ if (str == tailptr)
+ return 0;
+ else
+ return 1;
+}
+