arduino/esp8266
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Make pgm_read_byte() and pgm_read_word() usable from c files.

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The two defines used reinterpret_cast<> which is only available when
compiling with c++. Now using plain old c casts instead.
This commit is contained in:
Jens Hauke 2015-12-07 18:01:15 +01:00
parent ee314f2cdc
commit dd89de4dad
1 changed files with 2 additions and 2 deletions
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4
cores/esp8266/pgmspace.h
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@ -78,7 +78,7 @@ int vsnprintf_P(char *str, size_t strSize, PGM_P formatP, va_list ap) __attribut
(__extension__({ \
PGM_P __local = (PGM_P)(addr); /* isolate varible for macro expansion */ \
ptrdiff_t __offset = ((uint32_t)__local & 0x00000003); /* byte aligned mask */ \
const uint32_t* __addr32 = reinterpret_cast<const uint32_t*>(reinterpret_cast<const uint8_t*>(__local)-__offset); \
const uint32_t* __addr32 = (const uint32_t*)((const uint8_t*)(__local)-__offset); \
uint8_t __result = ((*__addr32) >> (__offset * 8)); \
__result; \
}))
@ -87,7 +87,7 @@ int vsnprintf_P(char *str, size_t strSize, PGM_P formatP, va_list ap) __attribut
(__extension__({ \
PGM_P __local = (PGM_P)(addr); /* isolate varible for macro expansion */ \
ptrdiff_t __offset = ((uint32_t)__local & 0x00000002); /* word aligned mask */ \
const uint32_t* __addr32 = reinterpret_cast<const uint32_t*>(reinterpret_cast<const uint8_t*>(__local) - __offset); \
const uint32_t* __addr32 = (const uint32_t*)((const uint8_t*)(__local) - __offset); \
uint16_t __result = ((*__addr32) >> (__offset * 8)); \
__result; \
}))