Now able to compile in Arduino CI. Workaround for #2 (but see Arduino-CI/arduino_ci#120).

Author: James Foster

src/File.cpp

@@ -22,7 +22,7 @@ File::File(SdFile f, const char *n) {
   // oh man you are kidding me, new() doesn't exist? Ok we do it by hand!
   _file = (SdFile *)malloc(sizeof(SdFile));
   if (_file) {
-    memcpy(_file, &f, sizeof(SdFile));
+    memcpy((void*)_file, (void*)&f, sizeof(SdFile));
 
     strncpy(_name, n, 12);
     _name[12] = 0;

src/SD.h

@@ -53,6 +53,13 @@ namespace SDLib {
       void rewindDirectory(void);
 
       using Print::write;
+#ifdef ARDUINO_CI
+      int getWriteError() { return writeError; }
+      void setWriteError(int value = 1) { writeError = value; }
+      void clearWriteError() { writeError = 0; }
+    private:
+      int writeError;
+#endif
   };
 
   class SDClass {

src/utility/Sd2PinMap.cpp

@@ -0,0 +1,7 @@
+#ifdef ARDUINO_CI
+
+#include "Sd2PinMap.h"
+
+uint8_t avr_io_registers[RAMSTART];
+
+#endif

src/utility/Sd2PinMap.h

@@ -17,6 +17,27 @@
    along with the Arduino SdFat Library.  If not, see
    <http://www.gnu.org/licenses/>.
 */
+
+#ifdef ARDUINO_CI
+  #include <inttypes.h>
+  #ifdef _SFR_IO8
+    #undef _SFR_IO8
+    #define _AVR_IO_REG(type, mem_addr) (*(type*)(&avr_io_registers[mem_addr]))
+    #define __SFR_OFFSET 0x20
+    #define _SFR_IO8(io_addr) _AVR_IO_REG(uint8_t, io_addr + __SFR_OFFSET)
+    #define _SFR_IO16(io_addr) _AVR_IO_REG(uint16_t, io_addr + __SFR_OFFSET)
+    #define _SFR_MEM8(mem_addr) _AVR_IO_REG(uint8_t, mem_addr)
+    #define _SFR_MEM16(mem_addr) _AVR_IO_REG(uint16_t, mem_addr)
+    #define _SFR_MEM32(mem_addr) _AVR_IO_REG(uint32_t, mem_addr)
+
+    extern uint8_t avr_io_registers[RAMSTART];
+  #endif
+  #define SDCARD_SS_PIN    4
+  #define SDCARD_MOSI_PIN 11
+  #define SDCARD_MISO_PIN 12
+  #define SDCARD_SCK_PIN  13
+#endif
+
 #if defined(__arm__) // Arduino Due Board follows
 
 #ifndef Sd2PinMap_h

src/utility/SdFat.h

@@ -454,6 +454,13 @@ class SdFile : public Print {
     static uint8_t make83Name(const char* str, uint8_t* name);
     uint8_t openCachedEntry(uint8_t cacheIndex, uint8_t oflags);
     dir_t* readDirCache(void);
+#ifdef ARDUINO_CI
+    int writeError;
+  public:
+    int getWriteError() { return writeError; }
+    void setWriteError(int value = 1) { writeError = value; }
+    void clearWriteError() { writeError = 0; }
+#endif
 };
 //==============================================================================
 // SdVolume class

src/utility/SdFatUtil.h

@@ -34,20 +34,31 @@
 #endif
 #define NOINLINE __attribute__((noinline,unused))
 #define UNUSEDOK __attribute__((unused))
+
+#if UINTPTR_MAX == 0xFFFF
+typedef int16_t ptr_as_int;
+#elif UINTPTR_MAX == 0xFFFFFFFF
+typedef int32_t ptr_as_int;
+#elif UINTPTR_MAX == 0xFFFFFFFFFFFFFFFFu
+typedef int64_t ptr_as_int;
+#else
+#error unrecognized pointer size!
+#endif
+
 //------------------------------------------------------------------------------
 /** Return the number of bytes currently free in RAM. */
 static UNUSEDOK int FreeRam(void) {
   extern int  __bss_end;
   extern int* __brkval;
   int free_memory;
-  if (reinterpret_cast<int>(__brkval) == 0) {
+  if (reinterpret_cast<ptr_as_int>(__brkval) == 0) {
     // if no heap use from end of bss section
-    free_memory = reinterpret_cast<int>(&free_memory)
-                  - reinterpret_cast<int>(&__bss_end);
+    free_memory = reinterpret_cast<ptr_as_int>(&free_memory)
+                  - reinterpret_cast<ptr_as_int>(&__bss_end);
   } else {
     // use from top of stack to heap
-    free_memory = reinterpret_cast<int>(&free_memory)
-                  - reinterpret_cast<int>(__brkval);
+    free_memory = reinterpret_cast<ptr_as_int>(&free_memory)
+                  - reinterpret_cast<ptr_as_int>(__brkval);
   }
   return free_memory;
 }