From 0609cdb2d32ef5aacd26f8733545b8e7dc174ad0 Mon Sep 17 00:00:00 2001
From: Bertrand Songis <bsongis@gmail.com>
Date: Fri, 15 May 2020 15:54:51 +0200
Subject: [PATCH] Alternative to display INT_MIN correctly (#7557)

INT_MIN/INT_MAX
---
 radio/src/gui/128x64/lcd.cpp  | 13 +++++++++++++
 radio/src/gui/212x64/lcd.cpp  | 13 +++++++++++++
 radio/src/gui/480x272/lcd.cpp | 13 +++++++++++++
 3 files changed, 39 insertions(+)

diff --git a/radio/src/gui/128x64/lcd.cpp b/radio/src/gui/128x64/lcd.cpp
index c2c12fead..f3adae2ca 100644
--- a/radio/src/gui/128x64/lcd.cpp
+++ b/radio/src/gui/128x64/lcd.cpp
@@ -18,6 +18,7 @@
  * GNU General Public License for more details.
  */
 
+#include <limits.h>
 #include "opentx.h"
 
 display_t displayBuf[DISPLAY_BUFFER_SIZE] __DMA;
@@ -465,7 +466,19 @@ void lcdDrawNumber(coord_t x, coord_t y, int32_t val, LcdFlags flags, uint8_t le
   int idx = 0;
   int mode = MODE(flags);
   bool neg = false;
+
+  if (val == INT_MAX) {
+    flags &= ~(LEADING0 | PREC1 | PREC2);
+    lcdDrawText(x, y, "INT_MAX", flags);
+    return;
+  }
+
   if (val < 0) {
+    if (val == INT_MIN) {
+      flags &= ~(LEADING0 | PREC1 | PREC2);
+      lcdDrawText(x, y, "INT_MIN", flags);
+      return;
+    }
     val = -val;
     neg = true;
   }
diff --git a/radio/src/gui/212x64/lcd.cpp b/radio/src/gui/212x64/lcd.cpp
index c523643bb..a838003b3 100644
--- a/radio/src/gui/212x64/lcd.cpp
+++ b/radio/src/gui/212x64/lcd.cpp
@@ -18,6 +18,7 @@
  * GNU General Public License for more details.
  */
 
+#include <limits.h>
 #include "opentx.h"
 #include "timers.h"
 
@@ -402,7 +403,19 @@ void lcdDrawNumber(coord_t x, coord_t y, int32_t val, LcdFlags flags, uint8_t le
   int idx = 0;
   int mode = MODE(flags);
   bool neg = false;
+
+  if (val == INT_MAX) {
+    flags &= ~(LEADING0 | PREC1 | PREC2);
+    lcdDrawText(x, y, "INT_MAX", flags);
+    return;
+  }
+
   if (val < 0) {
+    if (val == INT_MIN) {
+      flags &= ~(LEADING0 | PREC1 | PREC2);
+      lcdDrawText(x, y, "INT_MIN", flags);
+      return;
+    }
     val = -val;
     neg = true;
   }
diff --git a/radio/src/gui/480x272/lcd.cpp b/radio/src/gui/480x272/lcd.cpp
index 34e8831d8..e2c660f73 100644
--- a/radio/src/gui/480x272/lcd.cpp
+++ b/radio/src/gui/480x272/lcd.cpp
@@ -20,6 +20,7 @@
 
 #include <math.h>
 #include <stdio.h>
+#include <limits.h>
 #include "opentx.h"
 #include "strhelpers.h"
 
@@ -165,7 +166,19 @@ void lcdDrawNumber(coord_t x, coord_t y, int32_t val, LcdFlags flags, uint8_t le
   int idx = 0;
   int mode = MODE(flags);
   bool neg = false;
+
+  if (val == INT_MAX) {
+    flags &= ~(LEADING0 | PREC1 | PREC2);
+    lcdDrawText(x, y, "INT_MAX", flags);
+    return;
+  }
+
   if (val < 0) {
+    if (val == INT_MIN) {
+      flags &= ~(LEADING0 | PREC1 | PREC2);
+      lcdDrawText(x, y, "INT_MIN", flags);
+      return;
+    }
     val = -val;
     neg = true;
   }