Fix the C++ build for some examples.

examples/data_source_chaining.c

@@ -135,15 +135,15 @@ int main(int argc, char** argv)
     deviceConfig.dataCallback      = data_callback;
     deviceConfig.pUserData         = NULL;
 
-    if (ma_device_init(NULL, &deviceConfig, &device) != MA_SUCCESS) {
+    result = ma_device_init(NULL, &deviceConfig, &device);
+    if (result != MA_SUCCESS) {
         printf("Failed to open playback device.\n");
-        result = -1;
         goto done_decoders;
     }
 
-    if (ma_device_start(&device) != MA_SUCCESS) {
+    result = ma_device_start(&device);
+    if (result != MA_SUCCESS) {
         printf("Failed to start playback device.\n");
-        result = -1;
         goto done;
     }
 

examples/hilo_interop.c

@@ -46,7 +46,7 @@ void capture_data_callback(ma_device* pDevice, void* pFramesOut, const void* pFr
         }
 
         /* Copy the data from the capture buffer to the ring buffer. */
-        ma_copy_pcm_frames(pMappedBuffer, ma_offset_pcm_frames_const_ptr_f32(pFramesIn, framesWritten, pDevice->capture.channels), framesToWrite, pDevice->capture.format, pDevice->capture.channels);
+        ma_copy_pcm_frames(pMappedBuffer, ma_offset_pcm_frames_const_ptr_f32((const float*)pFramesIn, framesWritten, pDevice->capture.channels), framesToWrite, pDevice->capture.format, pDevice->capture.channels);
 
         result = ma_pcm_rb_commit_write(&rb, framesToWrite);
         if (result != MA_SUCCESS) {

examples/resource_manager_advanced.c

@@ -110,7 +110,7 @@ MA_API ma_result ma_data_source_read_pcm_frames_and_mix_f32(ma_data_source* pDat
         
         result = ma_data_source_read_pcm_frames_f32_ex(pDataSource, temp, framesToRead, &framesJustRead, format, channels);
 
-        ma_mix_pcm_frames_f32(ma_offset_pcm_frames_ptr(pFramesOut, totalFramesRead, ma_format_f32, channels), temp, framesJustRead, channels, volume);
+        ma_mix_pcm_frames_f32(ma_offset_pcm_frames_ptr_f32(pFramesOut, totalFramesRead, channels), temp, framesJustRead, channels, volume);
         totalFramesRead += framesJustRead;
 
         if (result != MA_SUCCESS) {