Merge pull request #191 from Rotzbua/fix_int

replace ~0 by UINT8_MAX

Author: squix78

SH1106Brzo.h

@@ -62,10 +62,10 @@ class SH1106Brzo : public OLEDDisplay {
 
     void display(void) {
     #ifdef OLEDDISPLAY_DOUBLE_BUFFER
-       uint8_t minBoundY = ~0;
+       uint8_t minBoundY = UINT8_MAX;
        uint8_t maxBoundY = 0;
 
-       uint8_t minBoundX = ~0;
+       uint8_t minBoundX = UINT8_MAX;
        uint8_t maxBoundX = 0;
        uint8_t x, y;
 
@@ -88,7 +88,7 @@ class SH1106Brzo : public OLEDDisplay {
        // If the minBoundY wasn't updated
        // we can savely assume that buffer_back[pos] == buffer[pos]
        // holdes true for all values of pos
-       if (minBoundY == ~0) return;
+       if (minBoundY == UINT8_MAX) return;
 
        byte k = 0;
        uint8_t sendBuffer[17];

SH1106Spi.h

@@ -65,10 +65,10 @@ class SH1106Spi : public OLEDDisplay {
 
     void display(void) {
     #ifdef OLEDDISPLAY_DOUBLE_BUFFER
-       uint8_t minBoundY = ~0;
+       uint8_t minBoundY = UINT8_MAX;
        uint8_t maxBoundY = 0;
 
-       uint8_t minBoundX = ~0;
+       uint8_t minBoundX = UINT8_MAX;
        uint8_t maxBoundX = 0;
 
        uint8_t x, y;
@@ -92,7 +92,7 @@ class SH1106Spi : public OLEDDisplay {
        // If the minBoundY wasn't updated
        // we can savely assume that buffer_back[pos] == buffer[pos]
        // holdes true for all values of pos
-       if (minBoundY == ~0) return;
+       if (minBoundY == UINT8_MAX) return;
 
        // Calculate the colum offset
        uint8_t minBoundXp2H = (minBoundX + 2) & 0x0F;

SH1106Wire.h

@@ -65,10 +65,10 @@ class SH1106Wire : public OLEDDisplay {
 
     void display(void) {
       #ifdef OLEDDISPLAY_DOUBLE_BUFFER
-        uint8_t minBoundY = ~0;
+        uint8_t minBoundY = UINT8_MAX;
         uint8_t maxBoundY = 0;
 
-        uint8_t minBoundX = ~0;
+        uint8_t minBoundX = UINT8_MAX;
         uint8_t maxBoundX = 0;
 
         uint8_t x, y;
@@ -92,7 +92,7 @@ class SH1106Wire : public OLEDDisplay {
         // If the minBoundY wasn't updated
         // we can savely assume that buffer_back[pos] == buffer[pos]
         // holdes true for all values of pos
-        if (minBoundY == ~0) return;
+        if (minBoundY == UINT8_MAX) return;
 
         // Calculate the colum offset
         uint8_t minBoundXp2H = (minBoundX + 2) & 0x0F;

SSD1306Brzo.h

@@ -62,10 +62,10 @@ class SSD1306Brzo : public OLEDDisplay {
 
     void display(void) {
     #ifdef OLEDDISPLAY_DOUBLE_BUFFER
-       uint8_t minBoundY = ~0;
+       uint8_t minBoundY = UINT8_MAX;
        uint8_t maxBoundY = 0;
 
-       uint8_t minBoundX = ~0;
+       uint8_t minBoundX = UINT8_MAX;
        uint8_t maxBoundX = 0;
 
        uint8_t x, y;
@@ -89,7 +89,7 @@ class SSD1306Brzo : public OLEDDisplay {
        // If the minBoundY wasn't updated
        // we can savely assume that buffer_back[pos] == buffer[pos]
        // holdes true for all values of pos
-       if (minBoundY == ~0) return;
+       if (minBoundY == UINT8_MAX) return;
 
        sendCommand(COLUMNADDR);
        sendCommand(minBoundX);

SSD1306Spi.h

@@ -74,10 +74,10 @@ class SSD1306Spi : public OLEDDisplay {
 
     void display(void) {
     #ifdef OLEDDISPLAY_DOUBLE_BUFFER
-       uint8_t minBoundY = ~0;
+       uint8_t minBoundY = UINT8_MAX;
        uint8_t maxBoundY = 0;
 
-       uint8_t minBoundX = ~0;
+       uint8_t minBoundX = UINT8_MAX;
        uint8_t maxBoundX = 0;
 
        uint8_t x, y;
@@ -101,7 +101,7 @@ class SSD1306Spi : public OLEDDisplay {
        // If the minBoundY wasn't updated
        // we can savely assume that buffer_back[pos] == buffer[pos]
        // holdes true for all values of pos
-       if (minBoundY == ~0) return;
+       if (minBoundY == UINT8_MAX) return;
 
        sendCommand(COLUMNADDR);
        sendCommand(minBoundX);

SSD1306Wire.h

@@ -62,10 +62,10 @@ class SSD1306Wire : public OLEDDisplay {
       initI2cIfNeccesary();
       const int x_offset = (128 - this->width()) / 2;
       #ifdef OLEDDISPLAY_DOUBLE_BUFFER
-        uint8_t minBoundY = ~0;
+        uint8_t minBoundY = UINT8_MAX;
         uint8_t maxBoundY = 0;
 
-        uint8_t minBoundX = ~0;
+        uint8_t minBoundX = UINT8_MAX;
         uint8_t maxBoundX = 0;
         uint8_t x, y;
 
@@ -89,7 +89,7 @@ class SSD1306Wire : public OLEDDisplay {
         // we can savely assume that buffer_back[pos] == buffer[pos]
         // holdes true for all values of pos
 
-        if (minBoundY == (uint8_t)(~0)) return;
+        if (minBoundY == UINT8_MAX) return;
 
         sendCommand(COLUMNADDR);
         sendCommand(x_offset + minBoundX);