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Diff: picojson.h
- Revision:
- 0:7bd1a48945f5
- Child:
- 1:2bb500b021e2
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/picojson.h Wed Aug 31 14:48:57 2011 +0000
@@ -0,0 +1,815 @@
+/* Copyright 2009 Cybozu Labs, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY CYBOZU LABS, INC. ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL CYBOZU LABS, INC. OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing official
+ * policies, either expressed or implied, of Cybozu Labs, Inc.
+ *
+ */
+#ifndef picojson_h
+#define picojson_h
+
+#include <cassert>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <iostream>
+#include <iterator>
+#include <map>
+#include <string>
+#include <vector>
+
+#ifdef _MSC_VER
+ #define SNPRINTF _snprintf_s
+ #pragma warning(push)
+ #pragma warning(disable : 4244) // conversion from int to char
+#else
+ #define SNPRINTF snprintf
+#endif
+
+namespace picojson {
+
+ enum {
+ null_type,
+ boolean_type,
+ number_type,
+ string_type,
+ array_type,
+ object_type
+ };
+
+ struct null {};
+
+ class value {
+ public:
+ typedef std::vector<value> array;
+ typedef std::map<std::string, value> object;
+ protected:
+ int type_;
+ union {
+ bool boolean_;
+ double number_;
+ std::string* string_;
+ array* array_;
+ object* object_;
+ };
+ public:
+ value();
+ value(int type, bool);
+ explicit value(bool b);
+ explicit value(double n);
+ explicit value(const std::string& s);
+ explicit value(const array& a);
+ explicit value(const object& o);
+ ~value();
+ value(const value& x);
+ value& operator=(const value& x);
+ template <typename T> bool is() const;
+ template <typename T> const T& get() const;
+ template <typename T> T& get();
+ operator bool() const;
+ const value& get(size_t idx) const;
+ const value& get(const std::string& key) const;
+ std::string to_str() const;
+ template <typename Iter> void serialize(Iter os) const;
+ std::string serialize() const;
+ };
+
+ typedef value::array array;
+ typedef value::object object;
+
+ inline value::value() : type_(null_type) {}
+
+ inline value::value(int type, bool) : type_(type) {
+ switch (type) {
+#define INIT(p, v) case p##type: p = v; break
+ INIT(boolean_, false);
+ INIT(number_, 0.0);
+ INIT(string_, new std::string());
+ INIT(array_, new array());
+ INIT(object_, new object());
+#undef INIT
+ default: break;
+ }
+ }
+
+ inline value::value(bool b) : type_(boolean_type) {
+ boolean_ = b;
+ }
+
+ inline value::value(double n) : type_(number_type) {
+ number_ = n;
+ }
+
+ inline value::value(const std::string& s) : type_(string_type) {
+ string_ = new std::string(s);
+ }
+
+ inline value::value(const array& a) : type_(array_type) {
+ array_ = new array(a);
+ }
+
+ inline value::value(const object& o) : type_(object_type) {
+ object_ = new object(o);
+ }
+
+ inline value::~value() {
+ switch (type_) {
+#define DEINIT(p) case p##type: delete p; break
+ DEINIT(string_);
+ DEINIT(array_);
+ DEINIT(object_);
+#undef DEINIT
+ default: break;
+ }
+ }
+
+ inline value::value(const value& x) : type_(x.type_) {
+ switch (type_) {
+#define INIT(p, v) case p##type: p = v; break
+ INIT(boolean_, x.boolean_);
+ INIT(number_, x.number_);
+ INIT(string_, new std::string(*x.string_));
+ INIT(array_, new array(*x.array_));
+ INIT(object_, new object(*x.object_));
+#undef INIT
+ default: break;
+ }
+ }
+
+ inline value& value::operator=(const value& x) {
+ if (this != &x) {
+ this->~value();
+ new (this) value(x);
+ }
+ return *this;
+ }
+
+#define IS(ctype, jtype) \
+ template <> inline bool value::is<ctype>() const { \
+ return type_ == jtype##_type; \
+ }
+ IS(null, null)
+ IS(bool, boolean)
+ IS(int, number)
+ IS(double, number)
+ IS(std::string, string)
+ IS(array, array)
+ IS(object, object)
+#undef IS
+
+#define GET(ctype, var) \
+ template <> inline const ctype& value::get<ctype>() const { \
+ return var; \
+ } \
+ template <> inline ctype& value::get<ctype>() { \
+ return var; \
+ }
+ GET(bool, boolean_)
+ GET(double, number_)
+ GET(std::string, *string_)
+ GET(array, *array_)
+ GET(object, *object_)
+#undef GET
+
+ inline value::operator bool() const {
+ switch (type_) {
+ case null_type:
+ return false;
+ case boolean_type:
+ return boolean_;
+ case number_type:
+ return number_ != 0;
+ case string_type:
+ return ! string_->empty();
+ default:
+ return true;
+ }
+ }
+
+ inline const value& value::get(size_t idx) const {
+ static value s_null;
+ assert(is<array>());
+ return idx < array_->size() ? (*array_)[idx] : s_null;
+ }
+
+ inline const value& value::get(const std::string& key) const {
+ static value s_null;
+ assert(is<object>());
+ object::const_iterator i = object_->find(key);
+ return i != object_->end() ? i->second : s_null;
+ }
+
+ inline std::string value::to_str() const {
+ switch (type_) {
+ case null_type: return "null";
+ case boolean_type: return boolean_ ? "true" : "false";
+ case number_type: {
+ char buf[256];
+ SNPRINTF(buf, sizeof(buf), "%f", number_);
+ return buf;
+ }
+ case string_type: return *string_;
+ case array_type: return "array";
+ case object_type: return "object";
+ default: assert(0);
+#ifdef _MSC_VER
+ __assume(0);
+#endif
+ }
+ }
+
+ template <typename Iter> void copy(const std::string& s, Iter oi) {
+ std::copy(s.begin(), s.end(), oi);
+ }
+
+ template <typename Iter> void serialize_str(const std::string& s, Iter oi) {
+ *oi++ = '"';
+ for (std::string::const_iterator i = s.begin(); i != s.end(); ++i) {
+ switch (*i) {
+#define MAP(val, sym) case val: copy(sym, oi); break
+ MAP('"', "\\\"");
+ MAP('\\', "\\\\");
+ MAP('/', "\\/");
+ MAP('\b', "\\b");
+ MAP('\f', "\\f");
+ MAP('\n', "\\n");
+ MAP('\r', "\\r");
+ MAP('\t', "\\t");
+#undef MAP
+ default:
+ if ((unsigned char)*i < 0x20 || *i == 0x7f) {
+ char buf[7];
+ SNPRINTF(buf, sizeof(buf), "\\u%04x", *i & 0xff);
+ copy(buf, buf + 6, oi);
+ } else {
+ *oi++ = *i;
+ }
+ break;
+ }
+ }
+ *oi++ = '"';
+ }
+
+ template <typename Iter> void value::serialize(Iter oi) const {
+ switch (type_) {
+ case string_type:
+ serialize_str(*string_, oi);
+ break;
+ case array_type: {
+ *oi++ = '[';
+ for (array::const_iterator i = array_->begin(); i != array_->end(); ++i) {
+ if (i != array_->begin()) {
+ *oi++ = ',';
+ }
+ i->serialize(oi);
+ }
+ *oi++ = ']';
+ break;
+ }
+ case object_type: {
+ *oi++ = '{';
+ for (object::const_iterator i = object_->begin();
+ i != object_->end();
+ ++i) {
+ if (i != object_->begin()) {
+ *oi++ = ',';
+ }
+ serialize_str(i->first, oi);
+ *oi++ = ':';
+ i->second.serialize(oi);
+ }
+ *oi++ = '}';
+ break;
+ }
+ default:
+ copy(to_str(), oi);
+ break;
+ }
+ }
+
+ inline std::string value::serialize() const {
+ std::string s;
+ serialize(std::back_inserter(s));
+ return s;
+ }
+
+ template <typename Iter> class input {
+ protected:
+ Iter cur_, end_;
+ int last_ch_;
+ bool ungot_;
+ int line_;
+ public:
+ input(const Iter& first, const Iter& last) : cur_(first), end_(last), last_ch_(-1), ungot_(false), line_(1) {}
+ int getc() {
+ if (ungot_) {
+ ungot_ = false;
+ return last_ch_;
+ }
+ if (cur_ == end_) {
+ last_ch_ = -1;
+ return -1;
+ }
+ if (last_ch_ == '\n') {
+ line_++;
+ }
+ last_ch_ = *cur_++ & 0xff;
+ return last_ch_;
+ }
+ void ungetc() {
+ if (last_ch_ != -1) {
+ assert(! ungot_);
+ ungot_ = true;
+ }
+ }
+ Iter cur() const { return cur_; }
+ int line() const { return line_; }
+ void skip_ws() {
+ while (1) {
+ int ch = getc();
+ if (! (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r')) {
+ ungetc();
+ break;
+ }
+ }
+ }
+ int expect(int expect) {
+ skip_ws();
+ if (getc() != expect) {
+ ungetc();
+ return false;
+ }
+ return true;
+ }
+ bool match(const std::string& pattern) {
+ for (std::string::const_iterator pi(pattern.begin());
+ pi != pattern.end();
+ ++pi) {
+ if (getc() != *pi) {
+ ungetc();
+ return false;
+ }
+ }
+ return true;
+ }
+ };
+
+ template<typename Iter> inline int _parse_quadhex(input<Iter> &in) {
+ int uni_ch = 0, hex;
+ for (int i = 0; i < 4; i++) {
+ if ((hex = in.getc()) == -1) {
+ return -1;
+ }
+ if ('0' <= hex && hex <= '9') {
+ hex -= '0';
+ } else if ('A' <= hex && hex <= 'F') {
+ hex -= 'A' - 0xa;
+ } else if ('a' <= hex && hex <= 'f') {
+ hex -= 'a' - 0xa;
+ } else {
+ in.ungetc();
+ return -1;
+ }
+ uni_ch = uni_ch * 16 + hex;
+ }
+ return uni_ch;
+ }
+
+ template<typename Iter> inline bool _parse_codepoint(std::string& out, input<Iter>& in) {
+ int uni_ch;
+ if ((uni_ch = _parse_quadhex(in)) == -1) {
+ return false;
+ }
+ if (0xd800 <= uni_ch && uni_ch <= 0xdfff) {
+ if (0xdc00 <= uni_ch) {
+ // a second 16-bit of a surrogate pair appeared
+ return false;
+ }
+ // first 16-bit of surrogate pair, get the next one
+ if (in.getc() != '\\' || in.getc() != 'u') {
+ in.ungetc();
+ return false;
+ }
+ int second = _parse_quadhex(in);
+ if (! (0xdc00 <= second && second <= 0xdfff)) {
+ return false;
+ }
+ uni_ch = ((uni_ch - 0xd800) << 10) | ((second - 0xdc00) & 0x3ff);
+ uni_ch += 0x10000;
+ }
+ if (uni_ch < 0x80) {
+ out.push_back(uni_ch);
+ } else {
+ if (uni_ch < 0x800) {
+ out.push_back(0xc0 | (uni_ch >> 6));
+ } else {
+ if (uni_ch < 0x10000) {
+ out.push_back(0xe0 | (uni_ch >> 12));
+ } else {
+ out.push_back(0xf0 | (uni_ch >> 18));
+ out.push_back(0x80 | ((uni_ch >> 12) & 0x3f));
+ }
+ out.push_back(0x80 | ((uni_ch >> 6) & 0x3f));
+ }
+ out.push_back(0x80 | (uni_ch & 0x3f));
+ }
+ return true;
+ }
+
+ template<typename Iter> inline bool _parse_string(value& out, input<Iter>& in) {
+ // gcc 4.1 cannot compile if the below two lines are merged into one :-(
+ out = value(string_type, false);
+ std::string& s = out.get<std::string>();
+ while (1) {
+ int ch = in.getc();
+ if (ch < ' ') {
+ in.ungetc();
+ return false;
+ } else if (ch == '"') {
+ return true;
+ } else if (ch == '\\') {
+ if ((ch = in.getc()) == -1) {
+ return false;
+ }
+ switch (ch) {
+#define MAP(sym, val) case sym: s.push_back(val); break
+ MAP('"', '\"');
+ MAP('\\', '\\');
+ MAP('/', '/');
+ MAP('b', '\b');
+ MAP('f', '\f');
+ MAP('n', '\n');
+ MAP('r', '\r');
+ MAP('t', '\t');
+#undef MAP
+ case 'u':
+ if (! _parse_codepoint(s, in)) {
+ return false;
+ }
+ break;
+ default:
+ return false;
+ }
+ } else {
+ s.push_back(ch);
+ }
+ }
+ return false;
+ }
+
+ template <typename Iter> inline bool _parse_array(value& out, input<Iter>& in) {
+ out = value(array_type, false);
+ array& a = out.get<array>();
+ if (in.expect(']')) {
+ return true;
+ }
+ do {
+ a.push_back(value());
+ if (! _parse(a.back(), in)) {
+ return false;
+ }
+ } while (in.expect(','));
+ return in.expect(']');
+ }
+
+ template <typename Iter> inline bool _parse_object(value& out, input<Iter>& in) {
+ out = value(object_type, false);
+ object& o = out.get<object>();
+ if (in.expect('}')) {
+ return true;
+ }
+ do {
+ value key, val;
+ if (in.expect('"')
+ && _parse_string(key, in)
+ && in.expect(':')
+ && _parse(val, in)) {
+ o[key.to_str()] = val;
+ } else {
+ return false;
+ }
+ } while (in.expect(','));
+ return in.expect('}');
+ }
+
+ template <typename Iter> inline bool _parse_number(value& out, input<Iter>& in) {
+ std::string num_str;
+ while (1) {
+ int ch = in.getc();
+ if (('0' <= ch && ch <= '9') || ch == '+' || ch == '-' || ch == '.'
+ || ch == 'e' || ch == 'E') {
+ num_str.push_back(ch);
+ } else {
+ in.ungetc();
+ break;
+ }
+ }
+ char* endp;
+ out = value(strtod(num_str.c_str(), &endp));
+ return endp == num_str.c_str() + num_str.size();
+ }
+
+ template <typename Iter> inline bool _parse(value& out, input<Iter>& in) {
+ in.skip_ws();
+ int ch = in.getc();
+ switch (ch) {
+#define IS(ch, text, val) case ch: \
+ if (in.match(text)) { \
+ out = val; \
+ return true; \
+ } else { \
+ return false; \
+ }
+ IS('n', "ull", value());
+ IS('f', "alse", value(false));
+ IS('t', "rue", value(true));
+#undef IS
+ case '"':
+ return _parse_string(out, in);
+ case '[':
+ return _parse_array(out, in);
+ case '{':
+ return _parse_object(out, in);
+ default:
+ if (('0' <= ch && ch <= '9') || ch == '-') {
+ in.ungetc();
+ return _parse_number(out, in);
+ }
+ break;
+ }
+ in.ungetc();
+ return false;
+ }
+
+ // obsolete, use the version below
+ template <typename Iter> inline std::string parse(value& out, Iter& pos, const Iter& last) {
+ std::string err;
+ pos = parse(out, pos, last, &err);
+ return err;
+ }
+
+ template <typename Iter> inline Iter parse(value& out, const Iter& first, const Iter& last, std::string* err) {
+ input<Iter> in(first, last);
+ if (! _parse(out, in) && err != NULL) {
+ char buf[64];
+ SNPRINTF(buf, sizeof(buf), "syntax error at line %d near: ", in.line());
+ *err = buf;
+ while (1) {
+ int ch = in.getc();
+ if (ch == -1 || ch == '\n') {
+ break;
+ } else if (ch >= ' ') {
+ err->push_back(ch);
+ }
+ }
+ }
+ return in.cur();
+ }
+
+ inline std::string parse(value& out, std::istream& is) {
+ std::string err;
+ parse(out, std::istreambuf_iterator<char>(is.rdbuf()),
+ std::istreambuf_iterator<char>(), &err);
+ return err;
+ }
+
+ template <typename T> struct last_error_t {
+ static std::string s;
+ };
+ template <typename T> std::string last_error_t<T>::s;
+
+ inline void set_last_error(const std::string& s) {
+ last_error_t<bool>::s = s;
+ }
+
+ inline const std::string& get_last_error() {
+ return last_error_t<bool>::s;
+ }
+
+ bool operator==(const value& x, const value& y) {
+ if (x.is<null>())
+ return y.is<null>();
+#define PICOJSON_CMP(type) \
+ if (x.is<type>()) \
+ return y.is<type>() && x.get<type>() == y.get<type>()
+ PICOJSON_CMP(bool);
+ PICOJSON_CMP(double);
+ PICOJSON_CMP(std::string);
+ PICOJSON_CMP(array);
+ PICOJSON_CMP(object);
+#undef PICOJSON_CMP
+ assert(0);
+#ifdef _MSC_VER
+ __assume(0);
+#endif
+ return false;
+ }
+
+ inline bool operator!=(const value& x, const value& y) {
+ return ! (x == y);
+ }
+}
+
+inline std::istream& operator>>(std::istream& is, picojson::value& x)
+{
+ picojson::set_last_error(std::string());
+ std::string err = picojson::parse(x, is);
+ if (! err.empty()) {
+ picojson::set_last_error(err);
+ is.setstate(std::ios::failbit);
+ }
+ return is;
+}
+
+inline std::ostream& operator<<(std::ostream& os, const picojson::value& x)
+{
+ x.serialize(std::ostream_iterator<char>(os));
+ return os;
+}
+#ifdef _MSC_VER
+ #pragma warning(pop)
+#endif
+
+#endif
+#ifdef TEST_PICOJSON
+#ifdef _MSC_VER
+ #pragma warning(disable : 4127) // conditional expression is constant
+#endif
+
+using namespace std;
+
+static void plan(int num)
+{
+ printf("1..%d\n", num);
+}
+
+static void ok(bool b, const char* name = "")
+{
+ static int n = 1;
+ printf("%s %d - %s\n", b ? "ok" : "ng", n++, name);
+}
+
+template <typename T> void is(const T& x, const T& y, const char* name = "")
+{
+ if (x == y) {
+ ok(true, name);
+ } else {
+ ok(false, name);
+ }
+}
+
+#include <algorithm>
+
+int main(void)
+{
+ plan(61);
+
+#define TEST(in, type, cmp, serialize_test) { \
+ picojson::value v; \
+ const char* s = in; \
+ string err = picojson::parse(v, s, s + strlen(s)); \
+ ok(err.empty(), in " no error"); \
+ ok(v.is<type>(), in " check type"); \
+ is(v.get<type>(), cmp, in " correct output"); \
+ is(*s, '\0', in " read to eof"); \
+ if (serialize_test) { \
+ is(v.serialize(), string(in), in " serialize"); \
+ } \
+ }
+ TEST("false", bool, false, true);
+ TEST("true", bool, true, true);
+ TEST("90.5", double, 90.5, false);
+ TEST("\"hello\"", string, string("hello"), true);
+ TEST("\"\\\"\\\\\\/\\b\\f\\n\\r\\t\"", string, string("\"\\/\b\f\n\r\t"),
+ true);
+ TEST("\"\\u0061\\u30af\\u30ea\\u30b9\"", string,
+ string("a\xe3\x82\xaf\xe3\x83\xaa\xe3\x82\xb9"), false);
+ TEST("\"\\ud840\\udc0b\"", string, string("\xf0\xa0\x80\x8b"), false);
+#undef TEST
+
+#define TEST(type, expr) { \
+ picojson::value v; \
+ const char *s = expr; \
+ string err = picojson::parse(v, s, s + strlen(s)); \
+ ok(err.empty(), "empty " #type " no error"); \
+ ok(v.is<picojson::type>(), "empty " #type " check type"); \
+ ok(v.get<picojson::type>().empty(), "check " #type " array size"); \
+ }
+ TEST(array, "[]");
+ TEST(object, "{}");
+#undef TEST
+
+ {
+ picojson::value v;
+ const char *s = "[1,true,\"hello\"]";
+ string err = picojson::parse(v, s, s + strlen(s));
+ ok(err.empty(), "array no error");
+ ok(v.is<picojson::array>(), "array check type");
+ is(v.get<picojson::array>().size(), size_t(3), "check array size");
+ ok(v.get(0).is<double>(), "check array[0] type");
+ is(v.get(0).get<double>(), 1.0, "check array[0] value");
+ ok(v.get(1).is<bool>(), "check array[1] type");
+ ok(v.get(1).get<bool>(), "check array[1] value");
+ ok(v.get(2).is<string>(), "check array[2] type");
+ is(v.get(2).get<string>(), string("hello"), "check array[2] value");
+ }
+
+ {
+ picojson::value v;
+ const char *s = "{ \"a\": true }";
+ string err = picojson::parse(v, s, s + strlen(s));
+ ok(err.empty(), "object no error");
+ ok(v.is<picojson::object>(), "object check type");
+ is(v.get<picojson::object>().size(), size_t(1), "check object size");
+ ok(v.get("a").is<bool>(), "check property exists");
+ is(v.get("a").get<bool>(), true,
+ "check property value");
+ is(v.serialize(), string("{\"a\":true}"), "serialize object");
+ }
+
+#define TEST(json, msg) do { \
+ picojson::value v; \
+ const char *s = json; \
+ string err = picojson::parse(v, s, s + strlen(s)); \
+ is(err, string("syntax error at line " msg), msg); \
+ } while (0)
+ TEST("falsoa", "1 near: oa");
+ TEST("{]", "1 near: ]");
+ TEST("\n\bbell", "2 near: bell");
+ TEST("\"abc\nd\"", "1 near: ");
+#undef TEST
+
+ {
+ picojson::value v1, v2;
+ const char *s;
+ string err;
+ s = "{ \"b\": true, \"a\": [1,2,\"three\"], \"d\": 2 }";
+ err = picojson::parse(v1, s, s + strlen(s));
+ s = "{ \"d\": 2.0, \"b\": true, \"a\": [1,2,\"three\"] }";
+ err = picojson::parse(v2, s, s + strlen(s));
+ ok((v1 == v2), "check == operator in deep comparison");
+ }
+
+ {
+ picojson::value v1, v2;
+ const char *s;
+ string err;
+ s = "{ \"b\": true, \"a\": [1,2,\"three\"], \"d\": 2 }";
+ err = picojson::parse(v1, s, s + strlen(s));
+ s = "{ \"d\": 2.0, \"a\": [1,\"three\"], \"b\": true }";
+ err = picojson::parse(v2, s, s + strlen(s));
+ ok((v1 != v2), "check != operator for array in deep comparison");
+ }
+
+ {
+ picojson::value v1, v2;
+ const char *s;
+ string err;
+ s = "{ \"b\": true, \"a\": [1,2,\"three\"], \"d\": 2 }";
+ err = picojson::parse(v1, s, s + strlen(s));
+ s = "{ \"d\": 2.0, \"a\": [1,2,\"three\"], \"b\": false }";
+ err = picojson::parse(v2, s, s + strlen(s));
+ ok((v1 != v2), "check != operator for object in deep comparison");
+ }
+
+ {
+ picojson::value v1, v2;
+ const char *s;
+ string err;
+ s = "{ \"b\": true, \"a\": [1,2,\"three\"], \"d\": 2 }";
+ err = picojson::parse(v1, s, s + strlen(s));
+ picojson::object& o = v1.get<picojson::object>();
+ o.erase("b");
+ picojson::array& a = o["a"].get<picojson::array>();
+ picojson::array::iterator i;
+ i = std::remove(a.begin(), a.end(), picojson::value(std::string("three")));
+ a.erase(i, a.end());
+ s = "{ \"a\": [1,2], \"d\": 2 }";
+ err = picojson::parse(v2, s, s + strlen(s));
+ ok((v1 == v2), "check erase()");
+ }
+
+ return 0;
+}
+
+#endif
\ No newline at end of file