first re-commit.

pigpio-master/custom.cext

@@ -0,0 +1,54 @@
+/*
+This version is for pigpio version 26+
+
+If you want customised functions replace this file with your own
+definitions for gpioCustom1 and gpioCustom2.
+*/
+
+#include "pigpio.h"
+
+int gpioCustom1(unsigned arg1, unsigned arg2, char *argx, unsigned count)
+{
+   int i;
+   unsigned max;
+
+   DBG(DBG_USER, "arg1=%d arg2=%d count=%d [%s]",
+      arg1, arg2, count, myBuf2Str(count, argx));
+
+   CHECK_INITED;
+
+   /* for dummy just return max parameter */
+
+   if (arg1 > arg2) max = arg1; else max = arg2;
+
+   for (i=0; i<count; i++) if (argx[i] > max) max = argx[i];
+
+   return max;
+}
+
+
+int gpioCustom2(unsigned arg1, char *argx, unsigned count,
+                char *retBuf, unsigned retMax)
+{
+   int i, j, t;
+
+   DBG(DBG_USER, "arg1=%d count=%d [%s] retMax=%d",
+      arg1, count, myBuf2Str(count, argx), retMax);
+
+   CHECK_INITED;
+
+   /* for dummy just return argx reversed */
+
+   if (count > retMax) count = retMax;
+
+   for (i=0, j=count-1; i<=j; i++, j--)
+   {
+      /* t used as argx and retBuf may be the same buffer */
+      t = argx[i];
+      retBuf[i] = argx[j];
+      retBuf[j] = t;
+   }
+
+   return count;
+}
+