63 lines
1.3 KiB
C++
63 lines
1.3 KiB
C++
// ArduinoJson - arduinojson.org
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// Copyright Benoit Blanchon 2014-2020
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// MIT License
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#pragma once
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#include <Arduino.h>
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#include <ArduinoJson/Polyfills/safe_strcmp.hpp>
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#include <ArduinoJson/Strings/IsString.hpp>
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#include <ArduinoJson/Strings/StoragePolicy.hpp>
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namespace ARDUINOJSON_NAMESPACE {
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class ArduinoStringAdapter {
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public:
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ArduinoStringAdapter(const ::String& str) : _str(&str) {}
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void copyTo(char* p, size_t n) const {
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memcpy(p, _str->c_str(), n);
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}
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bool isNull() const {
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// Arduino's String::c_str() can return NULL
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return !_str->c_str();
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}
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int compare(const char* other) const {
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// Arduino's String::c_str() can return NULL
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const char* me = _str->c_str();
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return safe_strcmp(me, other);
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}
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bool equals(const char* expected) const {
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return compare(expected) == 0;
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}
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size_t size() const {
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return _str->length();
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}
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const char* begin() const {
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return _str->c_str();
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}
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typedef storage_policies::store_by_copy storage_policy;
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private:
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const ::String* _str;
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};
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template <>
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struct IsString< ::String> : true_type {};
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template <>
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struct IsString< ::StringSumHelper> : true_type {};
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inline ArduinoStringAdapter adaptString(const ::String& str) {
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return ArduinoStringAdapter(str);
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}
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} // namespace ARDUINOJSON_NAMESPACE
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