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Added support for PROGMEM (issue #76)

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Benoit Blanchon
2016-11-13 20:16:12 +01:00
parent c310e7e8b7
commit 1ce16ce449
4 changed files with 91 additions and 0 deletions
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21
include/ArduinoJson/Internals/StringFuncs.hpp
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@@ -90,5 +90,26 @@ struct StringFuncs<StringSumHelper> : StdStringFuncs<StringSumHelper> {};
template <>
struct StringFuncs<std::string> : StdStringFuncs<std::string> {};
#endif
#if ARDUINOJSON_ENABLE_PROGMEM
template <>
struct StringFuncs<const __FlashStringHelper*> {
static bool equals(const __FlashStringHelper* str, const char* expected) {
return strcmp_P((PGM_P)str, expected) == 0;
}
template <typename Buffer>
static char* duplicate(const __FlashStringHelper* str, Buffer* buffer) {
if (!str) return NULL;
size_t size = strlen_P((PGM_P)str) + 1;
void* dup = buffer->alloc(size);
if (dup != NULL) memcpy_P(dup, (PGM_P)str, size);
return static_cast<char*>(dup);
}
static const bool has_append = false;
static const bool should_duplicate = true;
};
#endif
}
}