17 lines
320 B
C
17 lines
320 B
C
/*
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* difftime - compute the difference between two calendar times
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*/
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/* $Header$ */
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#include <time.h>
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double
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difftime(time_t time1, time_t time0)
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{
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/* be careful: time_t may be unsigned */
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if ((time_t)-1 > 0 && time0 > time1) {
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return - (double) (time0 - time1);
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} else {
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return (double)(time1 - time0);
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}
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}
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