dtostrf fix for remainder leading zeros

Fix remainder to display leading zeros
kaveshan1 · May 14, 2015 · f968805 · f968805
1 parent 8b1caeb
commit f968805
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/hardware/esp8266com/esp8266/cores/esp8266/core_esp8266_noniso.c b/hardware/esp8266com/esp8266/cores/esp8266/core_esp8266_noniso.c
@@ -188,10 +188,10 @@ char * dtostrf(double number, signed char width, unsigned char prec, char *s) {
         ++out;
     }
 
-    while(prec-- > 0) {
+    for (unsigned char decShift = prec; decShift > 0; decShift--) {
         remainder *= 10.0;
     }
-    sprintf(out, "%d", (int) remainder);
+    sprintf(out, "%0*d", prec, (int)remainder);
 
     return s;
 }