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Diffstat (limited to 'Source/cmDuration.h')
| -rw-r--r-- | Source/cmDuration.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Source/cmDuration.h b/Source/cmDuration.h index 5f73585..6df1455 100644 --- a/Source/cmDuration.h +++ b/Source/cmDuration.h @@ -6,3 +6,19 @@ #include <ratio> typedef std::chrono::duration<double, std::ratio<1>> cmDuration; + +/* + * This function will return number of seconds in the requested type T. + * + * A duration_cast from duration<double> to duration<T> will not yield what + * one might expect if the double representation does not fit into type T. + * This function aims to safely convert, by clamping the double value between + * the permissible valid values for T. + */ +template <typename T> +T cmDurationTo(const cmDuration& duration); + +#ifndef CMDURATION_CPP +extern template int cmDurationTo<int>(const cmDuration&); +extern template unsigned int cmDurationTo<unsigned int>(const cmDuration&); +#endif |