}/* On Windows stderr is not always unbuffered. */#ifdefined(_WIN32) || defined(WIN32) || defined(__MINGW32__)setvbuf(stderr,NULL, _IONBF,0);#endifsqlite3* db =NULL;if(sqlite3_initialize() != SQLITE_OK) {fprintf(stderr,"error: failed to initialize sqlite\n");exit(EXIT_FAILUR...
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** +[NSString stringWithUTF8String:]: NULL cString'
我相信你的问题是你正在检查第二列，而不是第一列。请注意，sqlite3_column_text的定义指出最左边的列是列0。 http://www.sqlite.org/capi3ref.html#sqlite3_column_blob
//指向数据库的指针staticsqlite3*db=nil;//打开数据库+(sqlite3*)open{//推断数据库对象是否打开, 即db 是否有值if(db!=nil){//db有值, 直接使用,不须要再打开returndb;}#pragma---第一次实现了拷贝 第二次须要推断documents里面是否已经有数据库文件//先找到documents文档NSString*documentsPath=kDocuments...
bool QgsStyleV2::load( QString filename ) { mErrorString.clear(); // Open the sqlite database if ( !openDB( filename ) ) { mErrorString = "Unable to open database file specified"; QgsDebugMsg( mErrorString ); return false; } // Make sure there are no Null fields in parenti...
[fileManager copyItemAtPath:bundleFile toPath:file error:nil]; //UTF8tring 会把C语言 转换为 OC字符串 } sqlite3_open([file UTF8String], &db); return db; } (3) 关闭数据库 原型: SQLITE_API int sqlite3_close(sqlite3 *); 參考代码例如以下: ...
[fileManager copyItemAtPath:bundleFile toPath:file error:nil]; //UTF8tring 会把C语言 转换为 OC字符串 } sqlite3_open([file UTF8String], &db); return db; } (3) 关闭数据库 原型: SQLITE_API int sqlite3_close(sqlite3 *); 參考代码例如以下: ...
> //if the char is null or not supportted don't append it to > CString > if (temp < 1 || temp > 255) > { > //This gets hit a few times with negative int values > temp = temp; > } > else > { > //Append the char to the XML string ...
is not a zero-terminated string, it can contain zeros in the middle. > Trying to access memory locations outside whatever is allocated by the return > of sqlite3_column_text sounds like it would result in undefined behavior? How do you know how much memory sqlite3_column_text allocated fo...
value = C.GoString((*C.char)(unsafe.Pointer(p))) }return} 开发者ID:pkf,项目名称:gosqlite,代码行数:13,代码来源:stmt.go 示例4: text ▲点赞 1▼ // text returns the value of column i as a UTF-8 string. If copy is false, the// string will point to memory allocated by SQLite....