A-A+
gcc-4.3 fcntl2.h错误
/usr/include/bits/fcntl2.h:51: 错误： 调用‘__open_missing_mode’，声明有错误属性：open with O_CREAT in second argument needs 3 arguments网上查了一下，说是gcc-4.3对语法检查严格的结果，找到出错的那一句，在我编译的程序里是这句
int fd = open(fn.c_str(), O_WRONLY | O_CREAT | O_TRUNC);
将之改为
int fd = open(fn.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0777);
就OK了参考资料：
http://linux.chinaunix.net/techdoc/system/2008/11/08/1044060.shtml
https://bugs.launchpad.net/ubuntu/+source/gcc-4.3/+bug/286565
int fd = open(fn.c_str(), O_WRONLY | O_CREAT | O_TRUNC);
将之改为
int fd = open(fn.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0777);
就OK了参考资料：
http://linux.chinaunix.net/techdoc/system/2008/11/08/1044060.shtml
https://bugs.launchpad.net/ubuntu/+source/gcc-4.3/+bug/286565
