we need to return the number of bytes that would have been printed if
the buffer was big enough to support use cases such as vasprintf()
which needs to know how many bytes to allocate
The C++ standard indicates these functions always return a
null-terminated string. We should rename these functions if we're not
going to conform to the standards.
From https://en.cppreference.com/w/cpp/io/c/vfprintf :
"Writes the results to a character string buffer. At most buf_size-1
characters are written. The resulting character string will be
terminated with a null character"
We are still not standards-compliant in the case a length of 0 is passed
in, returning 0 where we should return the space that would be required
to store the formatted string.
RC_Channel: To nullptr from NULL.
AC_Fence: To nullptr from NULL.
AC_Avoidance: To nullptr from NULL.
AC_PrecLand: To nullptr from NULL.
DataFlash: To nullptr from NULL.
SITL: To nullptr from NULL.
GCS_MAVLink: To nullptr from NULL.
DataFlash: To nullptr from NULL.
AP_Compass: To nullptr from NULL.
Global: To nullptr from NULL.
Global: To nullptr from NULL.
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.
