On the high-end bench multimeters, resistance can be measured with a
kelvin connection as well as the more common two wire method. Provide
a flag which can indicate if four-wire mode is used.
The check for p == q is basically checking whether p/q == 1. We should
be normalising the rational before it gets here though, so in this case
we should have p == q == 1 here.
Since Autoconf places some important feature flags only into the
configuration header, it is necessary to include it globally to
guarantee a consistent build.
Move the include flags for files in the source tree from
configure.ac to Makefile.am where they belong. Also use
AM_CPPFLAGS instead of CFLAGS/CXXFLAGS to make sure the
files in the build/source tree are always picked up first.
Also, remove the include/libsigrok sub-directory from the
search path, thereby making the <libsigrok/> prefix mandatory
when building libsigrok itself. This matches the convention
already imposed on users of the library.
Inlining can only happen in the same compilation unit where the
function was defined, so there is no sense declaring an inline
function in a header if this function is not defined in this
same header.
This fixes the following gcc-5 warning:
In file included from include/libsigrok/libsigrok.h:1066:0,
from src/version.c:21:
include/libsigrok/proto.h:36:20: warning: inline function 'sr_rational_set' declared but never defined
SR_API inline void sr_rational_set(struct sr_rational *r, uint64_t p, uint64_t q);
^
It fills the fields with reasonable default values that should suit
most of the drivers. Drivers are obviously free to override the fields
they want after initializing.
Uwe Hermann
Aurelien Jacobs
Stefan Brüns
Alexandru Gagniuc
Martin Ling
Daniel Elstner
Bert Vermeulen