Description

• Type: Enhancement
• Priority: Minor

Enhancement

Justification - why does the library need this feature?
To improve readability by saving horizontal and vertical space, see discussions in 3441.

Suggested enhancement
Define in a header file in library/ (common.h is a possibility) the following macros to read a byte from a larger integer type.

#define BYTE_0( x ) ( (uint8_t) ( ( x ) & 0xff )  )
#define BYTE_1( x ) ( (uint8_t) ( ( ( x ) >> 8 ) & 0xff )  )
#define BYTE_2( x ) ( (uint8_t) ( ( ( x ) >> 16 ) & 0xff ) )
#define BYTE_3( x ) ( (uint8_t) ( ( ( x ) >> 24 ) & 0xff ) )

Define also once for all in the same header file the #define PUT_UINT32_LE(n,b,i) macro.

Then use the BYTE_x macros to replace the corresponding sequences in the library code (including the ones using (unsigned int) instead to (uint8_t) to cast).

The changes need to be back-ported to 2.16 but the macro definition cannot be put in a single common header and have to be redefined in each C header or file making use of them.