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Up-> CppAD library time_test elapsed_seconds

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time_test-> elapsed_seconds time_test.cpp

elapsed_seconds-> elapsed_seconds.cpp

Headings-> Syntax Purpose s Microsoft Systems Example

Returns Elapsed Number of Seconds
Syntax
s = elapsed_seconds()

Purpose
This routine is accurate to within .02 seconds (see elapsed_seconds.cpp ). It does not necessary work for time intervals that are greater than a day.

1. If running under the Microsoft compiler, it uses ::GetSystemTime for timing.
2. Otherwise, if gettimeofday is available, it is used.
3. Otherwise, std::clock() is used.

s
is a double equal to the number of seconds since the first call to elapsed_seconds.

Microsoft Systems
It you are using the Microsoft C++ compiler, you will need to link in the external routine called microsoft_timer .

Example
The routine elapsed_seconds.cpp is an example and test of this routine.

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Input File: cppad/elapsed_seconds.hpp