pub unsafe extern "C" fn cusparseSpruneCsr2csrNnz(
handle: cusparseHandle_t,
m: c_int,
n: c_int,
nnzA: c_int,
descrA: cusparseMatDescr_t,
csrSortedValA: *const f32,
csrSortedRowPtrA: *const c_int,
csrSortedColIndA: *const c_int,
threshold: *const f32,
descrC: cusparseMatDescr_t,
csrSortedRowPtrC: *mut c_int,
nnzTotalDevHostPtr: *mut c_int,
pBuffer: *mut c_void,
) -> cusparseStatus_t