Set the overall value of this object to indicate the specified number of hours. Return 0 if the resulting time interval value is valid (i.e., the days field must not overflow an int) and a non-zero value (with no effect) otherwise.
hours
days
int
Declared in <bdlt_datetimeinterval.h>
<bdlt_datetimeinterval.h>
int setTotalHoursIfValid(bsls::Types::Int64 hours);