在通过MacPorts安装必要的库后编译我在Mac OS X上编写的程序时,我收到此错误:
In function 'nanotime':
error: 'CLOCK_REALTIME' undeclared (first use in this function)
error: (Each undeclared identifier is reported only once
error: for each function it appears in.)
它似乎clock_gettime没有在Mac OS X中实现.是否有另一种方法可以在纳秒内获得纪元时间？不幸的是在几微秒内.gettimeofday