Gcc 4.8 defines __cplusplus as 201103L, so we can check for that now. It
still also defines __GXX_EXPERIMENTAL_CXX0X__, but this could help on
other compilers, or if gcc ever decides to stop defining the
experimental macro.
to avoid the bug #2198 simply reconfigure the pin -> no additional overhead if pinMode configuration is performed at the beginning of the sketch, 4 to 25% overhead on all analogRead() due to the additional check
When a pin is designated as an output on the Arduino Due, the pin is set
to a HIGH logic level. Changing the default pin state to LOW makes the
behaviour correspond with AVR.
The following empty stubs has been replaced by the gcc
flag -fno-threadsafe-static:
int __cxa_guard_acquire(__guard *);
void __cxa_guard_release (__guard *);
void __cxa_guard_abort (__guard *);
The following empty stubs has been moved into their specific
module abi.cpp:
void __cxa_pure_virtual(void) __attribute ((noreturn));
void __cxa_deleted_virtual(void) __attribute ((noreturn));
Fix#107
Stream::find(char *target) passes an empty terminator string to
Stream::findUntil(char *target, char *terminator) which caused a compiler
warning with the updated toolchain, so cast it to a char*.
Adds ability to set length, parity and stop bit configuration to
hardware serial ports using USART module (Serial1, Serial2, and Serial
3) on Due to allow compatibility with avr devices.
Members of this array are later passed to functions that accept
non-const pointers. These functions probably don't modify their
arguments, so a better solution would be to update those functions to
accept const pointers. However, they look like third-party code, so that
would require changing the code again on every update. Removing const
here fixes at least the compiler warning for now.
This helps towards #1792.
This makes the declaration of sprintf available, so the function is not
implicitely declared, which triggers two compiler warnings.
This helps towards #1792
A bunch of functions have parameters they do not use, but which cannot
be removed for API compatibility.
In syscalls_sam3.c, there are a lot of these, so this adds an "UNUSED"
macro which adds the "unused" variable attribute if supported (GCC
specific), or is just a noop on other compilers.
In CDC.cpp, there's only three of these variables, so this commit just
forces a dummy evaluation of them to suppress the warnings.
This helps towards #1792.
peekNextDigit() returns an int, so it can return -1 in addition to all
256 possible bytes. By putting the result in a signe char, all bytes
over 128 will be interpreted as "no bytes available". Furthermore, it
seems that on SAM "char" is unsigned by default, causing the
"if (c < 0)" line a bit further down to always be false.
Using an int is more appropriate.
A different fix for this issue was suggested in #1399. This fix helps
towards #1728.
