programming error (function definition not allowed before token)

//---------------------------------------------------------------------
// Program: dual_chaser
//
// Description: 12 LED dual chaser. One led moves from left to right
// while the second LED moves from right to left.
// LEDs and series resistors connected to pins 2 to 13.
//
// Date: 8 April 2016 Author: W.A. Smith
// http://startingelectronics.org
//---------------------------------------------------------------------

// change speed of display here
#define SPEED_MS 100

void setup() {
// set up pins 2 to 13 as outputs
for (int i = 2; i <= 13; i++) {
pinMode(i, OUTPUT);
}
}

uint16_t chase2 = 13; // keeps track of second LED movement

void loop() {
// move first LED from left to right and second from right to left
for (int i = 2; i < 13; i++) {
allLEDsOff();
digitalWrite(i, HIGH); // chaser 1
digitalWrite(chase2, HIGH); // chaser 2
chase2–;
// stop LEDs from appearing to stand still in the middle
if (chase2 != 7) {
delay(SPEED_MS);
}
}

// move first LED from right to left and second LED from left to right
for (int i = 13; i > 2; i–) {
allLEDsOff();
digitalWrite(i, HIGH); // chaser 1
digitalWrite(chase2, HIGH); // chaser 2
chase2++;
// stop LEDs from appearing to stand still in the middle
if (chase2 != 8) {
delay(SPEED_MS);
}
}
}

// function to switch all LEDs off
void allLEDsOff(void)
{
for (int i = 2; i <= 13; i++) {
digitalWrite(i, LOW);
}
}

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The posted code compiles without errors or warnings in ver 1.6.5 of the Arduino IDE, board Arduino Uno.

Sketch uses 1,190 bytes (3%) of program storage space. Maximum is 32,256 bytes.
Global variables use 11 bytes (0%) of dynamic memory, leaving 2,037 bytes for local variables. Maximum is 2,048 bytes.