Initial import

external/json/fpconv.h

@@ -0,0 +1,32 @@
+/* Lua CJSON floating point conversion routines */
+
+/* Buffer required to store the largest string representation of a double.
+ *
+ * Longest double printed with %.14g is 21 characters long:
+ * -1.7976931348623e+308 */
+# define FPCONV_G_FMT_BUFSIZE   32
+
+#ifdef USE_INTERNAL_FPCONV
+#ifdef MULTIPLE_THREADS
+#include "dtoa_config.h"
+#include <unistd.h>
+static inline void fpconv_init()
+{
+    // Add one to try and avoid core id multiplier alignment
+    set_max_dtoa_threads((sysconf(_SC_NPROCESSORS_CONF) + 1) * 3);
+}
+#else
+static inline void fpconv_init()
+{
+    /* Do nothing - not required */
+}
+#endif
+#else
+extern void fpconv_init(void);
+#endif
+
+extern int fpconv_g_fmt(char*, double, int);
+extern double fpconv_strtod(const char*, char**);
+
+/* vi:ai et sw=4 ts=4:
+ */