error: 'track_t' was not declared in this scope - c++

Question

I'm fiddling with an Arduino project where I've got these structs in my main file:
struct gpsCoord_t {
long latitude;
long longitude;
};
struct track_t {
char code[4];
gpsCoord_t bounds[4];
gpsCoord_t points[4];
};
Next to that I've got a function to dump variables of this type to the serial bus in that same file:
void dumpTrack(track_t track) {
Serial.print("\nTrack: ");
Serial.print(track.code);
Serial.print("\nTrack bounds: ");
Serial.print("\n- 1 lat: ");
Serial.print(track.bounds[0].latitude);
Serial.print("\n- 1 lon: ");
Serial.print(track.bounds[0].longitude);
}
The compiler produces 2 errors without line numbers from which I believe the first one is caused by the second one:
error: variable or field 'dumpTrack' declared void
error: 'track_t' was not declared in this scope
EDIT here's the complete file:
#include <Wire.h> //I2C library
#include <I2C_eeprom.h>
#include <SoftwareSerial.h>
#include <TinyGPS.h>
I2C_eeprom ee(0x50);
const int baseTrackAddress = 3;
const int trackSize = 68;
const int maxTracks = 480;
int powerOnLED = 2;
int gpsFixLED = 3;
int trackFoundLED = 4;
int errorLED = 6;
int gpsSensor = 7;
TinyGPS gps;
SoftwareSerial nss(gpsSensor, 255);
int calcTrackAddress(int trackId) {
return (trackId*trackSize) + baseTrackAddress;
}
struct gpsCoord_t {
long latitude;
long longitude;
};
struct track_t {
char code[4];
gpsCoord_t bounds[4];
gpsCoord_t points[4];
};
track_t tracks[maxTracks];
void setup()
{
Serial.begin(115200);
Serial.flush();
Serial.print("Demo I2C eeprom library ");
Serial.print(I2C_EEPROM_VERSION);
Serial.println("\n");
strcpy(tracks[0].code, "X11");
tracks[0].bounds[0].latitude = 0;
tracks[0].bounds[0].longitude = 0;
tracks[0].points[0].latitude = 0;
tracks[0].points[0].longitude = 0;
ee.writeBlock(3, (uint8_t*)&tracks[0], trackSize);
}
void loop()
{
Serial.println("\nTEST: 64 byte page boundary writeBlock");
dumpEEPROM(0, 255);
while(1);
}
void dumpTrack(track_t track) {
Serial.print("\nTrack: ");
Serial.print(track.code);
Serial.print("\nTrack bounds: ");
Serial.print("\n- 1 lat: ");
Serial.print(track.bounds[0].latitude);
Serial.print("\n- 1 lon: ");
Serial.print(track.bounds[0].longitude);
}
void readTrack(int trackId) {
track_t track;
ee.readBlock(60, (uint8_t*)&track, 10);
}
void readTracks() {
}
void dumpEEPROM(unsigned int addr, unsigned int length)
{
// block to 10
addr = addr / 10 * 10;
length = (length + 9)/10 * 10;
byte b = ee.readByte(addr);
for (int i = 0; i < length; i++)
{
if (addr % 10 == 0)
{
Serial.println();
Serial.print(addr);
Serial.print(":\t");
}
Serial.print(b);
b = ee.readByte(++addr);
Serial.print(" ");
}
Serial.println();
}
void ProcessCommand(char* command) {
//switch(*command==)
}
char* ReadSerialCommand() {
int i=0;
char commandbuffer[100];
if(Serial.available()){
delay(100);
while( Serial.available() && i< 99) {
commandbuffer[i++] = Serial.read();
}
commandbuffer[i++]='\0';
}
if(i>0)
return (char*)commandbuffer;
else
return 0L;
}
When I put the entire dumpTrack function in comment, the errors go away. I've checked a couple of times for a typo but failed to find any.

Answer 1

It seems you are compiling this code as C.
Instead of
struct track_t {
char code[4];
gpsCoord_t bounds[4];
gpsCoord_t points[4];
};
write
typedef struct {
char code[4];
gpsCoord_t bounds[4];
gpsCoord_t points[4];
} track_t;

Answer 2

I suspect somewhere in a header there is a variable called dumpTrack. Why don't you just rename the function to something else?
Also in general it is good to avoid using reserved words as function names; "loop" is not a good choice for a function name.
Edit: the latter is probably the reason for your problem.