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In C++, true and false are language keywords, so there is no need to
define them as macros. Including stdbool.h in C++ effectively changes
nothing. In C, true, false and also the bool type are not available, but
including stdbool.h will make them available.
Using stdbool.h means that we get true, false and the bool type in
whatever way the compiler thinks is best, which seems like a good idea
to me.
This also fixes the following compiler warnings if a .c file includes
both stdbool.h and Arduino.h:
warning: "true" redefined [enabled by default]
#define true 0x1
warning: "false" redefined [enabled by default]
#define false 0x0
This fixes #1570 and helps toward fixing #1728.
This only changed the AVR core, the SAM core already doesn't define true
and false (but doesn't include stdbool.h either).
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See #1847
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Before, this decision was made in few different places, based on
sometimes different register defines.
Now, HardwareSerial.h decides wich UARTS are available, defines
USE_HWSERIALn macros and HardwareSerial.cpp simply checks these macros
(together with some #ifs to decide which registers to use for UART 0).
For consistency, USBAPI.h also defines a HAVE_CDCSERIAL macro when
applicable.
For supported targets, this should change any behaviour. For unsupported
targets, the error messages might subtly change because some checks are
moved or changed.
Additionally, this moves the USBAPI.h include form HardareSerial.h into
Arduino.h and raises an error when both CDC serial and UART0 are
available (previously this would silently use UART0 instead of CDC, but
there is not currently any Atmel chip available for which this would
occur).
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Recent avr-libc releases define one, but this allows using it also on
older avr-libc releases.
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https://github.com/arduino/Arduino/issues/1792#issuecomment-31650586
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Still missing:
- updates to WiFi lib for sam.
- updates to examples of Ehternet and WiFi for sam.
Merge remote-tracking branch 'arduino/master' into ide-1.5.x
Conflicts:
app/src/processing/app/Base.java
app/src/processing/app/Editor.java
app/src/processing/app/helpers/FileUtils.java
app/src/processing/app/i18n/Resources_fr.po
app/src/processing/app/i18n/Resources_fr.properties
build/shared/revisions.txt
hardware/arduino/avr/libraries/Ethernet/examples/DnsWebClient/DnsWebClient.ino
hardware/arduino/avr/libraries/WiFi/examples/WifiChatServer/WifiChatServer.ino
hardware/arduino/avr/libraries/WiFi/examples/WifiPachubeClient/WifiPachubeClient.ino
hardware/arduino/avr/libraries/WiFi/examples/WifiPachubeClientString/WifiPachubeClientString.ino
hardware/arduino/avr/libraries/WiFi/examples/WifiTwitterClient/WifiTwitterClient.ino
hardware/arduino/avr/libraries/WiFi/examples/WifiUdpSendReceiveString/WifiUdpSendReceiveString.ino
hardware/arduino/avr/libraries/WiFi/examples/WifiWebClient/WifiWebClient.ino
hardware/arduino/avr/libraries/WiFi/examples/WifiWebClientRepeating/WifiWebClientRepeating.ino
hardware/arduino/avr/libraries/WiFi/examples/WifiWebServer/WifiWebServer.ino
libraries/WiFi/examples/WiFiChatServer/WiFiChatServer.ino
libraries/WiFi/examples/WiFiPachubeClient/WiFiPachubeClient.ino
libraries/WiFi/examples/WiFiPachubeClientString/WiFiPachubeClientString.ino
libraries/WiFi/examples/WiFiTwitterClient/WiFiTwitterClient.ino
libraries/WiFi/examples/WiFiUdpSendReceiveString/WiFiUdpSendReceiveString.ino
libraries/WiFi/examples/WiFiWebClient/WiFiWebClient.ino
libraries/WiFi/examples/WiFiWebClientRepeating/WiFiWebClientRepeating.ino
libraries/WiFi/examples/WiFiWebServer/WiFiWebServer.ino
libraries/WiFi/examples/WifiChatServer/WifiChatServer.ino
libraries/WiFi/examples/WifiPachubeClient/WifiPachubeClient.ino
libraries/WiFi/examples/WifiPachubeClientString/WifiPachubeClientString.ino
libraries/WiFi/examples/WifiTwitterClient/WifiTwitterClient.ino
libraries/WiFi/examples/WifiUdpSendReceiveString/WifiUdpSendReceiveString.ino
libraries/WiFi/examples/WifiWebClient/WifiWebClient.ino
libraries/WiFi/examples/WifiWebClientRepeating/WifiWebClientRepeating.ino
libraries/WiFi/examples/WifiWebServer/WifiWebServer.ino
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This also changes pinMode(pin, INPUT); to explicitly disable the pull-up resistor, even if it was previously set.
http://code.google.com/p/arduino/issues/detail?id=246
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This should fix problems with overflows in pulseIn(). It may make millis() slightly less precise for clock speeds that aren't multiple of 1 million, but we don't really support those anyway.
http://code.google.com/p/arduino/issues/detail?id=675
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http://code.google.com/p/arduino/issues/detail?id=728
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http://code.google.com/p/arduino/issues/detail?id=677
http://code.google.com/p/arduino/issues/detail?id=691
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DEFAULT, EXTERNAL, and INTERNAL have different values on those processors.
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That is, there's now a pins/ directory in a platform, which includes multiple directories, each of which has its own pins_arduino.h. The boards.txt gets a new preferences, <BOARD>.build.pins, whose values is a sub-directory of the pins/ directory (possibly with a "platform:" prefix). That sub-directory is then placed in the include path during compilation.
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This is a step towards providing portability across AVR's by simply including an appropriate header file.
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