C++ StringSet::clear方法代码示例

					void Clear()
					{
						if (NULL != txn)
						{
							mdb_txn_abort(txn);
							txn = NULL;
						}
						ref = 0;
						dels.clear();
						inserts.clear();
					}

MojErr MojLogEngine::loggerNames(StringSet& setOut)
{
	setOut.clear();
	MojThreadGuard guard(m_mutex);
	for (LoggerList::ConstIterator i = m_loggers.begin(); i != m_loggers.end(); ++i) {
		MojString name;
		MojErr err = name.assign((*i)->name());
		MojErrCheck(err);
		err = setOut.put(name);
		MojErrCheck(err);
	}
	return MojErrNone;
}

void CDwdsThesaurus::GetAllLemmasWhosePathesStartFromThisSequence (const vector<int>& HyperTermNos, StringSet& Lemmas) const 
{
	DwordVector Result;
	GetAllPathesWhichStartFromThisSequence(HyperTermNos, Result);
	sort(Result.begin(),Result.end());
	Lemmas.clear();

	for (size_t i=0; i<LeavesPathes.size(); i++)
		if (binary_search(Result.begin(),Result.end(), LeavesPathes[i]))
		{
			const char* s = LeavesLemmas[i].GetString();
			Lemmas.insert(s);
		};

};

////////////////////////////////////////////////////////////////////////////////
// TODO: Duplicate code with reducer-shingle-threshold.cpp. Refactor into class
// with virtual method call to call the emit method
int main() {
  char value[1000], key[1000];
  StringSet shingleSet;
  std::string prevKey;
  while (scanf("%s\t%s\n", key, value) != EOF) {
    if (prevKey != key) {
      emitShinglesWithDocSizes(shingleSet, prevKey);
      shingleSet.clear();
    }
    shingleSet.insert(value);
    prevKey = key;
  }

  emitShinglesWithDocSizes(shingleSet, prevKey);

  return 0;
}

/**
 * categories is the selected categories for one image, members may be Las Vegas, Chicago, and Los Angeles if the
 * category in question is Places.
 * This function then increases _groupCount with 1 for each of the groups the relavant items belongs to
 * Las Vegas might increase the _groupCount[Nevada] by one.
 * The tricky part is to avoid increasing it by more than 1 per image, that is what the countedGroupDict is
 * used for.
 */
void GroupCounter::count( const StringSet& categories )
{
    static StringSet countedGroupDict;

    countedGroupDict.clear();
    for( StringSet::const_iterator categoryIt = categories.begin(); categoryIt != categories.end(); ++categoryIt ) {
        if ( _memberToGroup.contains(*categoryIt)) {
            const QStringList groups = _memberToGroup[*categoryIt];
            for ( const QString& group : groups ) {
                if ( !countedGroupDict.contains( group ) ) {
                    countedGroupDict.insert( group );
                    (_groupCount[group])++;
                }
            }
        }
        // The item Nevada should itself go into the group Nevada.
        if ( !countedGroupDict.contains( *categoryIt ) && _groupCount.contains( *categoryIt ) ) {
             countedGroupDict.insert( *categoryIt);
             (_groupCount[*categoryIt])++;
        }
    }
}

//.........这里部分代码省略.........
		}
		ScanFile(argv[i], ext, false, verbose);
	}

	/* Default output file is Makefile */
	if (filename == NULL) filename = strdup("Makefile");

	/* Default delimiter string */
	if (delimiter == NULL) delimiter = strdup("# DO NOT DELETE");

	char backup[PATH_MAX];
	strcpy(backup, filename);
	strcat(backup, ".bak");

	char *content = NULL;
	long size = 0;

	/* Read in the current file; so we can overwrite everything from the
	 * end of non-depend data marker down till the end. */
	FILE *src = fopen(filename, "rb");
	if (src != NULL) {
		fseek(src, 0, SEEK_END);
		size = ftell(src);
		rewind(src);
		content = (char*)malloc(size * sizeof(*content));
		if (fread(content, 1, size, src) != (size_t)size) {
			fprintf(stderr, "Could not read %s\n", filename);
			exit(-2);
		}
		fclose(src);
	}

	FILE *dst = fopen(filename, "w");
	bool found_delimiter = false;

	if (size != 0) {
		src = fopen(backup, "wb");
		if (fwrite(content, 1, size, src) != (size_t)size) {
			fprintf(stderr, "Could not write %s\n", filename);
			exit(-2);
		}
		fclose(src);

		/* Then append it to the real file. */
		src = fopen(backup, "rb");
		while (fgets(content, size, src) != NULL) {
			fputs(content, dst);
			if (!strncmp(content, delimiter, strlen(delimiter))) found_delimiter = true;
			if (!append && found_delimiter) break;
		}
		fclose(src);
	}
	if (!found_delimiter) fprintf(dst, "\n%s\n", delimiter);

	for (StringMap::iterator it = _files.begin(); it != _files.end(); it++) {
		for (StringSet::iterator h = it->second->begin(); h != it->second->end(); h++) {
			fprintf(dst, "%s: %s\n", it->first, *h);
		}
	}

	/* Clean up our mess. */
	fclose(dst);

	free(delimiter);
	free(filename);
	free(ext);
	free(content);

	for (StringMap::iterator it = _files.begin(); it != _files.end(); it++) {
		for (StringSet::iterator h = it->second->begin(); h != it->second->end(); h++) {
			free(*h);
		}
		it->second->clear();
		delete it->second;
		free(it->first);
	}
	_files.clear();

	for (StringMap::iterator it = _headers.begin(); it != _headers.end(); it++) {
		for (StringSet::iterator h = it->second->begin(); h != it->second->end(); h++) {
			free(*h);
		}
		it->second->clear();
		delete it->second;
		free(it->first);
	}
	_headers.clear();

	for (StringSet::iterator it = _defines.begin(); it != _defines.end(); it++) {
		free(*it);
	}
	_defines.clear();

	for (StringSet::iterator it = _include_dirs.begin(); it != _include_dirs.end(); it++) {
		free(*it);
	}
	_include_dirs.clear();

	return 0;
}

//.........这里部分代码省略.........
						lexer.Lex();
						if (!ignore.empty()) ignore.pop();
						if (verbose) fprintf(stderr, " -> %signore", (!ignore.empty() && ignore.top() != NOT_IGNORE) ? "" : "not ");
						break;

					case TOKEN_ELSE: {
						if (verbose) fprintf(stderr, "%s #else", filename);
						lexer.Lex();
						Ignore last = ignore.empty() ? NOT_IGNORE : ignore.top();
						if (!ignore.empty()) ignore.pop();
						if (ignore.empty() || ignore.top() == NOT_IGNORE) {
							ignore.push(last == IGNORE_UNTIL_ELSE ? NOT_IGNORE : IGNORE_UNTIL_ENDIF);
						} else {
							ignore.push(IGNORE_UNTIL_ENDIF);
						}
						if (verbose) fprintf(stderr, " -> %signore", (!ignore.empty() && ignore.top() != NOT_IGNORE) ? "" : "not ");
						break;
					}

					case TOKEN_ELIF: {
						if (verbose) fprintf(stderr, "%s #elif ", filename);
						lexer.Lex();
						Ignore last = ignore.empty() ? NOT_IGNORE : ignore.top();
						if (!ignore.empty()) ignore.pop();
						if (ignore.empty() || ignore.top() == NOT_IGNORE) {
							bool value = ExpressionOr(&lexer, &defines, verbose);
							ignore.push(last == IGNORE_UNTIL_ELSE ? (value ? NOT_IGNORE : IGNORE_UNTIL_ELSE) : IGNORE_UNTIL_ENDIF);
						} else {
							ignore.push(IGNORE_UNTIL_ENDIF);
						}
						if (verbose) fprintf(stderr, " -> %signore", (!ignore.empty() && ignore.top() != NOT_IGNORE) ? "" : "not ");
						break;
					}

					case TOKEN_IF: {
						if (verbose) fprintf(stderr, "%s #if ", filename);
						lexer.Lex();
						if (ignore.empty() || ignore.top() == NOT_IGNORE) {
							bool value = ExpressionOr(&lexer, &defines, verbose);
							ignore.push(value ? NOT_IGNORE : IGNORE_UNTIL_ELSE);
						} else {
							ignore.push(IGNORE_UNTIL_ENDIF);
						}
						if (verbose) fprintf(stderr, " -> %signore", (!ignore.empty() && ignore.top() != NOT_IGNORE) ? "" : "not ");
						break;
					}

					case TOKEN_IFDEF:
						if (verbose) fprintf(stderr, "%s #ifdef ", filename);
						lexer.Lex();
						if (lexer.GetToken() == TOKEN_IDENTIFIER) {
							bool value = defines.find(lexer.GetString()) != defines.end();
							if (verbose) fprintf(stderr, "%s[%d]", lexer.GetString(), value);
							if (ignore.empty() || ignore.top() == NOT_IGNORE) {
								ignore.push(value ? NOT_IGNORE : IGNORE_UNTIL_ELSE);
							} else {
								ignore.push(IGNORE_UNTIL_ENDIF);
							}
						}
						if (verbose) fprintf(stderr, " -> %signore", (!ignore.empty() && ignore.top() != NOT_IGNORE) ? "" : "not ");
						break;

					case TOKEN_IFNDEF:
						if (verbose) fprintf(stderr, "%s #ifndef ", filename);
						lexer.Lex();
						if (lexer.GetToken() == TOKEN_IDENTIFIER) {
							bool value = defines.find(lexer.GetString()) != defines.end();
							if (verbose) fprintf(stderr, "%s[%d]", lexer.GetString(), value);
							if (ignore.empty() || ignore.top() == NOT_IGNORE) {
								ignore.push(!value ? NOT_IGNORE : IGNORE_UNTIL_ELSE);
							} else {
								ignore.push(IGNORE_UNTIL_ENDIF);
							}
						}
						if (verbose) fprintf(stderr, " -> %signore", (!ignore.empty() && ignore.top() != NOT_IGNORE) ? "" : "not ");
						break;

					default:
						if (verbose) fprintf(stderr, "%s #<unknown>", filename);
						lexer.Lex();
						break;
				}
				if (verbose) fprintf(stderr, "\n");
				/* FALL THROUGH */
			default:
				/* Ignore the rest of the garbage on this line */
				while (lexer.GetToken() != TOKEN_EOL && lexer.GetToken() != TOKEN_END) lexer.Lex();
				lexer.Lex();
				break;
		}
	}

	if (!header) {
		for (StringSet::iterator it = defines.begin(); it != defines.end(); it++) {
			free(*it);
		}
		defines.clear();
		while (!ignore.empty()) ignore.pop();
	}
}