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* These examples are written in C99. You will need the compiler flag
* -std=c99 to compile it.
* To make the timestamp functions and their datatypes available, you need to
pass * -D_XOPEN_SOURCE=500 to the compiler.
* If you get this error:
* timing-example.c:(.text+0xd9): undefined reference to `clock_gettime'
* timing-example.c:(.text+0x108): undefined reference to `clock_gettime'
* then you'll need to the -lrt flag, too.
* Summary: Assuming you've saved this file as 'timing-example.c',
* use this to compile:
* gcc -std=c99 -D_XOPEN_SOURCE=500 -lrt timing-example.c
* Andreas Kloeckner, 9/3/2012