scc

simple c99 compiler
git clone git://git.simple-cc.org/scc
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difftime.c (139B)

      1 #include <time.h>
      2 
      3 #undef difftime
      4 
      5 double
      6 difftime(time_t t1, time_t t2)
      7 {
      8 	return t2 <= t1 ? (double) (t1 - t2) : -(double) (t2 - t1);
      9 }