Fix dtostrf_internal

blynkkk · Sep 17, 2018 · 55814b9 · 55814b9
1 parent 17ea7d5
commit 55814b9
Showing 1 changed file with 7 additions and 5 deletions.
diff --git a/src/utility/utility.cpp b/src/utility/utility.cpp
@@ -44,18 +44,20 @@ char* dtostrf_internal(double number, signed char BLYNK_UNUSED width, unsigned c
 
     // Print the decimal point, but only if there are digits beyond
     if(prec > 0) {
-        *out = '.';
-        ++out;
+        *out++ = '.';
     }
 
     while(prec-- > 0) {
         remainder *= 10.0;
         if((int)remainder == 0) {
-            *out = '0';
-            ++out;
+            *out++ = '0';
         }
     }
-    sprintf(out, "%d", (int) remainder);
+    if((int)remainder != 0) {
+        sprintf(out, "%d", (int)remainder);
+    } else {
+        *out++ = '\0';
+    }
 
     return s;
 }