Update doc of float functions (closes #838)

Author: stephane

NEWS.md

@@ -1,5 +1,9 @@
 # NEWS
 
+## libmodbus 3.X (202X-XX-XX)
+
+- Fix documentation examples of `modbus_get_float_*` functions.
+
 ## libmodbus 3.1.12 (2026-02-13)
 
 - Fix FD_SET overflow when socket fd >= FD_SETSIZE.

docs/modbus_get_float_abcd.md

@@ -14,7 +14,7 @@ float modbus_get_float_abcd(const uint16_t *src);
 
 The *modbus_get_float_abcd()* function shall get a float from 4 bytes in usual
 Modbus format. The `src` array must be a pointer on two 16 bits values, for
-example, if the first word is set to 0x0020 and the second to 0xF147, the float
+example, if the first word is set to 0x47F1 and the second to 0x2000, the float
 value will be read as 123456.0.
 
 ## Return value

docs/modbus_get_float_badc.md

@@ -14,8 +14,8 @@ float modbus_get_float_badc(const uint16_t *src);
 
 The *modbus_get_float_badc()* function shall get a float from 4 bytes with
 swapped bytes (BADC instead of ABCD). The `src` array must be a pointer on two
-16 bits values, for example, if the first word is set to 0x2000 and the second
-to 0x47F1, the float value will be read as 123456.0.
+16 bits values, for example, if the first word is set to 0xF147 and the second
+to 0x0020, the float value will be read as 123456.0.
 
 ## Return value
 

docs/modbus_get_float_cdab.md

@@ -14,8 +14,8 @@ float modbus_get_float_cdab(const uint16_t *src);
 
 The *modbus_get_float_cdab()* function shall get a float from 4 bytes with
 swapped words (CDAB order instead of ABCD). The `src` array must be a pointer on
-two 16 bits values, for example, if the first word is set to F147 and the second
-to 0x0020, the float value will be read as 123456.0.
+two 16 bits values, for example, if the first word is set to 0x2000 and the second
+to 0x47F1, the float value will be read as 123456.0.
 
 ## Return value
 

docs/modbus_get_float_dcba.md

@@ -14,8 +14,8 @@ float modbus_get_float_dcba(const uint16_t *src);
 
 The *modbus_get_float_dcba()* function shall get a float from 4 bytes in
 inverted Modbus format (DCBA order instead of ABCD). The `src` array must be a
-pointer on two 16 bits values, for example, if the first word is set to 0x47F1
-and the second to 0x2000, the float value will be read as 123456.0.
+pointer on two 16 bits values, for example, if the first word is set to 0x0020
+and the second to 0xF147, the float value will be read as 123456.0.
 
 ## Return value