Add missing forward declaration of PINCOUNT_fn()

Author: facchinm

variants/arduino_mzero/variant.h

@@ -53,6 +53,9 @@ extern "C"
  *----------------------------------------------------------------------------*/
 
 // Number of pins defined in PinDescription array
+#ifdef __cplusplus
+extern "C" unsigned int PINCOUNT_fn();
+#endif
 #define PINS_COUNT           (PINCOUNT_fn())
 #define NUM_DIGITAL_PINS     (19u)
 #define NUM_ANALOG_INPUTS    (5u)

variants/arduino_zero/variant.h

@@ -53,6 +53,9 @@ extern "C"
  *----------------------------------------------------------------------------*/
 
 // Number of pins defined in PinDescription array
+#ifdef __cplusplus
+extern "C" unsigned int PINCOUNT_fn();
+#endif
 #define PINS_COUNT           (PINCOUNT_fn())
 #define NUM_DIGITAL_PINS     (20u)
 #define NUM_ANALOG_INPUTS    (6u)

variants/circuitplay/variant.h

@@ -37,6 +37,9 @@
 // ----
 
 // Number of pins defined in PinDescription array
+#ifdef __cplusplus
+extern "C" unsigned int PINCOUNT_fn();
+#endif
 #define PINS_COUNT           (PINCOUNT_fn())
 #define NUM_DIGITAL_PINS     (39u)
 #define NUM_ANALOG_INPUTS    (11u)

variants/mkr1000/variant.h

@@ -36,6 +36,9 @@
 // ----
 
 // Number of pins defined in PinDescription array
+#ifdef __cplusplus
+extern "C" unsigned int PINCOUNT_fn();
+#endif
 #define PINS_COUNT           (PINCOUNT_fn())
 #define NUM_DIGITAL_PINS     (22u)
 #define NUM_ANALOG_INPUTS    (7u)

variants/mkrfox1200/variant.h

@@ -36,6 +36,9 @@
 // ----
 
 // Number of pins defined in PinDescription array
+#ifdef __cplusplus
+extern "C" unsigned int PINCOUNT_fn();
+#endif
 #define PINS_COUNT           (PINCOUNT_fn())
 #define NUM_DIGITAL_PINS     (15u)
 #define NUM_ANALOG_INPUTS    (7u)

variants/mkrgsm1400/variant.h

@@ -36,6 +36,9 @@
 // ----
 
 // Number of pins defined in PinDescription array
+#ifdef __cplusplus
+extern "C" unsigned int PINCOUNT_fn();
+#endif
 #define PINS_COUNT           (PINCOUNT_fn())
 #define NUM_DIGITAL_PINS     (15u)
 #define NUM_ANALOG_INPUTS    (7u)

variants/mkrnb1500/variant.cpp

@@ -163,6 +163,12 @@ const PinDescription g_APinDescription[] = {
 
 const void* g_apTCInstances[TCC_INST_NUM + TC_INST_NUM]={ TCC0, TCC1, TCC2, TC3, TC4, TC5 };
 
+extern "C" {
+    unsigned int PINCOUNT_fn() {
+        return (sizeof(g_APinDescription) / sizeof(g_APinDescription[0]));
+    }
+}
+
 // Multi-serial objects instantiation
 SERCOM sercom0(SERCOM0);
 SERCOM sercom1(SERCOM1);

variants/mkrnb1500/variant.h

@@ -36,7 +36,10 @@
 // ----
 
 // Number of pins defined in PinDescription array
-#define PINS_COUNT           (26u)
+#ifdef __cplusplus
+extern "C" unsigned int PINCOUNT_fn();
+#endif
+#define PINS_COUNT           (PINCOUNT_fn())
 #define NUM_DIGITAL_PINS     (15u)
 #define NUM_ANALOG_INPUTS    (7u)
 #define NUM_ANALOG_OUTPUTS   (1u)

variants/mkrvidor4000/variant.cpp

@@ -162,6 +162,12 @@ const PinDescription g_APinDescription[] = {
 
 const void* g_apTCInstances[TCC_INST_NUM + TC_INST_NUM]={ TCC0, TCC1, TCC2, TC3, TC4, TC5 };
 
+extern "C" {
+    unsigned int PINCOUNT_fn() {
+        return (sizeof(g_APinDescription) / sizeof(g_APinDescription[0]));
+    }
+}
+
 #if defined(USE_BQ24195L_PMIC)
 
 #include "wiring_private.h"

variants/mkrvidor4000/variant.h

@@ -36,7 +36,10 @@
 // ----
 
 // Number of pins defined in PinDescription array
-#define PINS_COUNT           (35u)
+#ifdef __cplusplus
+extern "C" unsigned int PINCOUNT_fn();
+#endif
+#define PINS_COUNT           (PINCOUNT_fn())
 #define NUM_DIGITAL_PINS     (15u)
 #define NUM_ANALOG_INPUTS    (7u)
 #define NUM_ANALOG_OUTPUTS   (1u)