Add STLTest

Test abs/min/max/round called from C or C++

Signed-off-by: Frederic.Pillon <[email protected]>

Author: fpistm

examples/NonReg/STLTest/STLTest.ino

@@ -0,0 +1,66 @@
+/*
+  STLTest
+
+  Test abs/min/max/round called from C or C++
+
+  Creation 10 Oct 2017
+  by Frederic Pillon <[email protected]>
+
+  This example code is in the public domain.
+*/
+
+#include "test_stl.h"
+static uint32_t count_pressed = 0;
+static uint32_t random_val = 0;
+
+int pushButton = USER_BTN;
+
+// the setup routine runs once when you press reset:
+void setup() {
+  // initialize serial communication at 115200 bits per second:
+  Serial.begin(115200);
+  // make the pushbutton's pin an input:
+  pinMode(pushButton, INPUT);
+  // if analog input pin 0 is unconnected, random analog
+  // noise will cause the call to randomSeed() to generate
+  // different seed numbers each time the sketch runs.
+  // randomSeed() will then shuffle the random function.
+  randomSeed(analogRead(0));
+}
+
+// the loop routine runs over and over again forever:
+void loop() {
+  // read the input pin:
+  int buttonState = digitalRead(pushButton);
+  random_val = random(300);
+  if (buttonState == LOW)
+  {
+    count_pressed++;
+  }
+
+  Serial.print("count pressed: ");
+  Serial.print(count_pressed);
+  Serial.print("\trandom: ");
+  Serial.println(random_val);
+
+  Serial.print("C++\tmin: ");
+  Serial.print(min(random_val,count_pressed));
+  Serial.print("\tmax: ");
+  Serial.print(max(random_val,count_pressed));
+  Serial.print("\tabs: ");
+  Serial.print(abs(count_pressed));
+  Serial.print("\tround (count_pressed/random_val): ");
+  Serial.println(round(count_pressed/random_val));
+
+  Serial.print("C\tmin: ");
+  Serial.print(test_c(random_val,count_pressed, MIN));
+  Serial.print("\tmax: ");
+  Serial.print(test_c(random_val,count_pressed, MAX));
+  Serial.print("\tabs: ");
+  Serial.print(test_c(count_pressed, 0, ABS));
+  Serial.print("\tround (count_pressed/random_val) is ");
+  Serial.println(test_c(count_pressed, random_val, ROUND));
+
+  Serial.println();
+  delay(100);        // delay in between reads for stability
+}

examples/NonReg/STLTest/test_stl.c

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+#include "test_stl.h"
+#include "Arduino.h"
+
+int test_c(int a, int b, test t)
+{
+  switch(t) {
+    default:
+    case ABS:
+      return abs(a);
+    break;
+    case MIN:
+      return min(a,b);
+    break;
+    case MAX:
+      return max(a,b);
+    break;
+    case ROUND:
+      return round(a/b);
+    break;
+  }
+ 
+}
+

examples/NonReg/STLTest/test_stl.h

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+#ifndef _STLTEST_H_
+#define _STLTEST_H_
+
+typedef enum _test {
+  ABS,
+  MIN,
+  MAX,
+  ROUND
+} test;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+int test_c(int a, int b, test t);
+#ifdef __cplusplus
+}
+#endif
+
+
+
+#endif /*_STLTEST_H_*/