启动方法是右上角的小三角 三、undefined to 问题解决方法 通过一和二,大致知道了undefined reference to 问题出现的原因,也了解了VsCode编译运行代码,看看下图,相信你对这个问题的解决方式已经有点眉目了。 正确运行和错误运行的区别就是多了“-L D:/ROUTE/mysql8/lib -l mysql”,根据之前的分析,
单纯这个报错内容来看,很典型的undefined reference to的报错,这个报错在调用第三方库的编程中,简直是家常便饭,代表的含义也很明确,就是找不到函数的定义。 用C++写代码的都知道,在C++中,代码是分为声明和定义的,声明就是告诉编译器有这个函数,换言之,就是个名字,而定义,就是具体这个函数的实现内容。 类似这个...
在使用 Visual Studio Code (VSCode) 进行 C++ 与 MySQL 数据库连接时，如遇到 "undefined reference to" 错误，意味着链接器未能找到 MySQL 客户端库中的函数定义。本篇文章将对解决此问题的几个步骤进行说明。第一步，确保已安装 MySQL 连接器/开发库，这是进行连接操作的必要前提。第二步，需设置...
reference to `mysqlpp::Connection: :~Connection()' custom1.o(.text+0x1f):custom1.cpp: undefinedreference to `_imp___ZN7mysqlpp10C onnection5queryEv' custom1.o(.text+0xef):custom1.cpp: undefinedreference to `print_stock_header(i nt)' custom1.o(.text+0x3fe):custom...
解决办法: 输入mysql_config命令查看LIB依赖 --libs_r 后面便是需要添加的 编译 gcc mysqltest.c -o sqlserver -I /www/server/mysql/include -L /www/server/mysql/lib -lmysqlclient -lpthread -lz -lm -lrt -ldl 代码 #include<stdlib.h>#include<stdio.h>#include<mysql/mysql.h>MYSQL *conn_ptr;...
• Error number: 1030; Symbol: ER_GET_ERRNO; SQLSTATE: HY000 Message: Got error %d - '%s' from storage engine Check the %d value to see what the OS error means. For example, 28 indicates that you have run out of disk space. • Error number: 1031; Symbol: ER_ILLEGAL_HA; SQL...
Description:I get this bug when I compile yours code: undefined reference to `_imp__get_driver_instance' I'm looking for solution for 3 days on internet, and no luck. I'm using windows 7 64 bit and Code::Blocks 13.12 with MinGW - GNU GCC compiler 32 bit, C++ MySQL connector 32 bi...
According to Boost.Geometry, geometries might become invalid as a result of the simplification process, and the process might create self-intersections. To check the validity of the result, pass it to ST_IsValid(). ST_Simplify() handles its arguments as described in the introduction to this...
# you might want to add some user authentication here /usr/local/mysql/bin/mysql -uroot -pxxxx -e "show variables; show status" | awk ' {undefined VAR[$1]=$2 } END {undefined MAX_CONN = VAR["max_connections"] MAX_USED_CONN = VAR["Max_used_connections"] ...
sqlTest.cpp:(.text+0x1d): undefined reference to `check(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' sqlTest.cpp:(.text+0x68): undefined reference to `check(std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std:...