float_to_str function improvements and additions to conversions.c

changelog/v2.18.2/changelog.md

@@ -18,6 +18,7 @@
   - [Changes](#changes)
     - [RENESAS](#renesas)
     - [Fixes](#fixes)
+    - [Improvements](#improvements)
     - [NEW HARDWARE](#new-hardware)
 
 ### <font color=red>RENESAS</font>
@@ -76,6 +77,13 @@
   + All Renesas MCU families now work correctly with AGT pins which are used as PWM channels.
 
 
+### Improvements
+
++ Improvements and fixes in `conversions.c`
+  + Fixed comparison bugs and an uninitialized variable in the string-to-number conversion functions
+  + Added a new fixed-precision float-to-string conversion function - `float_to_str_prec()`
+  + Renamed variables for clarity and applied consistent comparison style throughout
+
 ### NEW HARDWARE
 
 > NOTE:

platform/conversions/lib/include/conversions.h

@@ -50,6 +50,7 @@ extern "C"{
 
 #include <stdint.h>
 #include <stdbool.h>
+#include <stddef.h>
 #ifdef __GNUC__
 #include <me_built_in.h>
 #endif
@@ -325,6 +326,19 @@ char * l_trim( char * string );
  */
 uint8_t float_to_str( float f_num, char * string);
 
+/**
+ * @brief Converts floating point number into string with defined precision
+ *
+ * @param f_num           - floating point number to be converted
+ * @param string          - pointer to a string where converted number is stored
+ * @param size            - size of the string buffer
+ * @param precision       - number of decimal places to include
+ * @return uint8_t : 0    - conversion ok (fnum is not +INF, -INF or NaN)
+ *                   1    - if fnum is +INF
+ *                   2    - if fnum is -INF
+ *                   3    - if fnum is NaN
+ */
+int float_to_str_prec(float value, char *str, size_t size, uint8_t precision);
 /**
  * @brief Converts string into uint8
  *