1 // This checks that simply including <wchar.h> with 2 // _WCHAR_IS_8BIT defined will provice an 8-bit wchar_t 3 // and 8-bit WCHAR_MIN/WCHAR_MAX. 4 #include <android/api-level.h> 5 6 // Force wchar_t to be 8 bits. 7 #define _WCHAR_IS_8BIT 8 #include <wchar.h> 9 10 #if defined(__arm__) && __ANDROID_API__ != 3 11 #error "You should target API level 3 when compiling this file!" 12 #endif 13 14 #define CONCAT(x,y) CONCAT_(x,y) 15 #define CONCAT_(x,y) x ## y 16 17 #define STATIC_ASSERT(condition) \ 18 static char CONCAT(dummy_,__LINE__)[1 - 2*(!(condition))]; 19 20 #ifdef __arm__ 21 STATIC_ASSERT(sizeof(__WCHAR_TYPE__) == 1); 22 #else 23 STATIC_ASSERT(sizeof(__WCHAR_TYPE__) == 4); 24 #endif 25 26 // wchar_t is never redefined by <stddef.h> because it's a C++ keyword, 27 // unlike in C. 28 STATIC_ASSERT(sizeof(wchar_t) == 4); 29 30 // Since this is C++ code, and __STC_LIMIT_MACROS was not defined, the 31 // old behaviour on ARM was to define these constants to 8-bit values. 32 // Otherwise, always signed 32-bit values. 33 #ifdef __arm__ 34 STATIC_ASSERT(WCHAR_MIN == 0); 35 STATIC_ASSERT(WCHAR_MAX == 255); 36 #else 37 STATIC_ASSERT(WCHAR_MIN == 0x80000000); 38 STATIC_ASSERT(WCHAR_MAX == 0x7fffffff); 39 #endif 40
