Passing an unsigned value to abs() causes compilation error in gcc 6.1.1
(and doing that doesn't make sense too).
As a bonus, this patch fixes the code, since, for two unsigned integers
a and b, such that a > b, (a - b) without the casting to a signed
integer would produce garbage in the context of this patch. The type
int32_t is enough for the cases covered by this patch.
This commit changes the way libraries headers are included in source files:
- If the header is in the same directory the source belongs to, so the
notation '#include ""' is used with the path relative to the directory
containing the source.
- If the header is outside the directory containing the source, then we use
the notation '#include <>' with the path relative to libraries folder.
Some of the advantages of such approach:
- Only one search path for libraries headers.
- OSs like Windows may have a better lookup time.
this adds register level emulation of the ADS7844 and the RC
input/output hardware on the APM1, allowing for SITL testing without
enabling HIL in the code
Paul Riseborough
Gustavo Jose de Sousa
Andrew Tridgell
Caio Marcelo de Oliveira Filho
Lucas De Marchi
wsilva32
Sean O\'Brien
Jonathan Challinger
Andrew Tridgell