Sha256: 4ca5156db2652492309af391be94886dbf9d7fad1f89206c3d4fc462389c379e
Contents?: true
Size: 961 Bytes
Versions: 4
Compression:
Stored size: 961 Bytes
Contents
/* PSF copyright: original by Jim Hugunin and Chris Chase. */
int64_t
ndt_slice_adjust_indices(int64_t length, int64_t *start, int64_t *stop, int64_t step)
{
/* this is harder to get right than you might think */
assert(step != 0);
assert(step >= -INT64_MAX);
if (*start < 0) {
*start += length;
if (*start < 0) {
*start = (step < 0) ? -1 : 0;
}
}
else if (*start >= length) {
*start = (step < 0) ? length - 1 : length;
}
if (*stop < 0) {
*stop += length;
if (*stop < 0) {
*stop = (step < 0) ? -1 : 0;
}
}
else if (*stop >= length) {
*stop = (step < 0) ? length - 1 : length;
}
if (step < 0) {
if (*stop < *start) {
return (*start - *stop - 1) / (-step) + 1;
}
}
else {
if (*start < *stop) {
return (*stop - *start - 1) / step + 1;
}
}
return 0;
}
Version data entries
4 entries across 4 versions & 1 rubygems