pub struct NTuples<T> { /* private fields */ }
Implementations§
source§impl<T> NTuples<T>
impl<T> NTuples<T>
sourcepub fn create(filename: &str, data: &mut T) -> Option<NTuples<T>>
pub fn create(filename: &str, data: &mut T) -> Option<NTuples<T>>
This function creates a new write-only ntuple file filename for ntuples of size size and returns a pointer to the newly created ntuple struct. Any existing file with the same name is truncated to zero length and overwritten. A pointer to memory for the current ntuple row ntuple_data must be supplied—this is used to copy ntuples in and out of the file.
sourcepub fn open(filename: &str, data: &mut T) -> Option<NTuples<T>>
pub fn open(filename: &str, data: &mut T) -> Option<NTuples<T>>
This function opens an existing ntuple file filename for reading and returns a pointer to a corresponding ntuple struct. The ntuples in the file must have size size. A pointer to memory for the current ntuple row ntuple_data must be supplied—this is used to copy ntuples in and out of the file.
sourcepub fn write(&self) -> Value
pub fn write(&self) -> Value
This function writes the current ntuple ntuple->ntuple_data of size ntuple->size to the corresponding file.
sourcepub fn read(&self) -> Value
pub fn read(&self) -> Value
This function reads the current row of the ntuple file for ntuple and stores the values in ntuple->data.