1.6.5: Compilation Fails When Using The "byte" Type In Header Files ...

I am using Arduino 1.6.5.

This code can be successfully compiled.

byte_test1.ino

struct hoge { byte a, b, c; }; void setup() { hoge foo; foo.a = foo.b = foo.c = 123; } void loop() { }

However, when I move struct hoge to a header file, I get some compile errors. byte_test2.ino and hoge.h are in the same sketch, same directory.

byte_test2.ino

#include "hoge.h" void setup() { hoge foo; foo.a = foo.b = foo.c = 123; } void loop() { }

hoge.h

#ifndef HOGE_H_GUARD_17F1CCC4_8F5B_4CAA_ADD2_3F5213947232 #define HOGE_H_GUARD_17F1CCC4_8F5B_4CAA_ADD2_3F5213947232 struct hoge { byte a, b, c; }; #endif

the error message:

Arduino: 1.6.5 (Windows 7), ボード:"Arduino Uno" In file included from byte_test2.ino:1:0: hoge.h:5: error: 'byte' does not name a type byte a, b, c; ^ byte_test2.ino: In function 'void setup()': byte_test2:5: error: 'struct hoge' has no member named 'a' byte_test2:5: error: 'struct hoge' has no member named 'b' byte_test2:5: error: 'struct hoge' has no member named 'c' 'byte' does not name a type This report would have more information with "コンパイル中の詳細な出力を表示する" ファイル > 設定 で有効にする

the more detailed error message (**** = my user name):

Arduino: 1.6.5 (Windows 7), ボード:"Arduino Uno" ビルドオプションが変更されました。全体をリビルドしています。 C:\MyApps\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10605 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\MyApps\Arduino\hardware\arduino\avr\cores\arduino -IC:\MyApps\Arduino\hardware\arduino\avr\variants\standard C:\Users\****\AppData\Local\Temp\build261747110827034051.tmp\byte_test2.cpp -o C:\Users\****\AppData\Local\Temp\build261747110827034051.tmp\byte_test2.cpp.o In file included from byte_test2.ino:1:0: C:\Users\****\AppData\Local\Temp\build261747110827034051.tmp\hoge.h:5:3: error: 'byte' does not name a type byte a, b, c; ^ byte_test2.ino: In function 'void setup()': byte_test2.ino:5:7: error: 'struct hoge' has no member named 'a' byte_test2.ino:5:15: error: 'struct hoge' has no member named 'b' byte_test2.ino:5:23: error: 'struct hoge' has no member named 'c' 'struct hoge' has no member named 'a'

Why the "byte" type cannot be used in my header files?