+char*
+data_dump (const char *data, int len, const char* prefix) {
+ int i, j;
+ GString *str;
+ if (!len)
+ return g_strdup (" ()\n");
+ str = g_string_new (" (");
+ for (i = 0; i + 15 < len; i += 16) {
+ if (i == 0)
+ g_string_append_printf (str, "\n");
+ g_string_append_printf (str, "%s", prefix);
+ for (j = 0; j < 16; ++j)
+ g_string_append_printf (str, "%02X ", (unsigned char) (data [i + j]));
+ g_string_append_printf (str, i == len - 16? ") // ": " // ");
+ for (j = 0; j < 16; ++j)
+ g_string_append_printf (str, "%c", data [i + j] >= 32 && data [i + j] <= 126? data [i + j]: '.');
+ g_string_append_printf (str, "\n");
+ }
+ if (i == len)
+ return g_string_free (str, FALSE);
+ if (len > 16)
+ g_string_append_printf (str, "%s", prefix);
+ j = i;
+ for (; i < len; ++i)
+ g_string_append_printf (str, "%02X ", (unsigned char) (data [i]));
+ if (len > 16) {
+ /* align */
+ int count = 16 - (len % 16);
+ for (i = 0; i < count; ++i)
+ g_string_append_printf (str, " ");
+ }
+ g_string_append_printf (str, ") // ");
+ for (i = j; i < len; ++i)
+ g_string_append_printf (str, "%c", data [i] >= 32 && data [i] <= 126? data [i]: '.');
+ g_string_append_printf (str, "\n");
+ return g_string_free (str, FALSE);
+}
+
+int
+dis_isinf (double num)
+{
+#ifdef HAVE_ISINF
+ return isinf (num);
+#elif defined(HAVE_IEEEFP_H)
+ fpclass_t klass;
+
+ klass = fpclass (num);
+ if (klass == FP_NINF)
+ return -1;
+
+ if (klass == FP_PINF)
+ return 1;
+
+ return 0;
+#elif defined(HAVE__FINITE)
+ return _finite (num) ? 0 : 1;
+#else
+#error "Don't know how to implement isinf for this platform."
+#endif
+}
+
+int
+dis_isnan (double num)
+{
+#ifdef __MINGW32_VERSION
+return _isnan (num);
+#else
+return isnan (num);
+#endif
+}
+