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Code Issues 1 Releases Wiki Activity

update final array index to be -1

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This commit is contained in:
primo-ppcg 2023-07-14 17:34:55 +07:00
parent 8183cc5a8d
commit bdefd3ba1e
2 changed files with 5 additions and 5 deletions
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8
src/core/array.c
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@ -211,7 +211,7 @@ JANET_CORE_FN(cfun_array_slice,
"Takes a slice of array or tuple from `start` to `end`. The range is half open, "
"[start, end). Indexes can also be negative, indicating indexing from the "
"end of the array. By default, `start` is 0 and `end` is the length of the array. "
"Note that index -1 is synonymous with index `(length arrtup)` to allow a full "
"Note that if the range is negative, it is taken as (start, end] to allow a full "
"negative slice range. Returns a new array.") {
JanetView view = janet_getindexed(argv, 0);
JanetRange range = janet_getslice(argc, argv);
@ -259,8 +259,8 @@ JANET_CORE_FN(cfun_array_insert,
"(array/insert arr at & xs)",
"Insert all `xs` into array `arr` at index `at`. `at` should be an integer between "
"0 and the length of the array. A negative value for `at` will index backwards from "
"the end of the array, such that inserting at -1 appends to the array. "
"Returns the array.") {
"the end of the array, inserting after the index such that inserting at -1 appends to "
"the array. Returns the array.") {
size_t chunksize, restsize;
janet_arity(argc, 2, -1);
JanetArray *array = janet_getarray(argv, 0);
@ -297,7 +297,7 @@ JANET_CORE_FN(cfun_array_remove,
int32_t at = janet_getinteger(argv, 1);
int32_t n = 1;
if (at < 0) {
at = array->count + at + 1;
at = array->count + at;
}
if (at < 0 || at > array->count)
janet_panicf("removal index %d out of range [0,%d]", at, array->count);

2
test/suite-array.janet
View File

@ -44,7 +44,7 @@
(assert (deep= (array/remove @[1 2 3 4 5] 2) @[1 2 4 5]) "array/remove 1")
(assert (deep= (array/remove @[1 2 3 4 5] 2 2) @[1 2 5]) "array/remove 2")
(assert (deep= (array/remove @[1 2 3 4 5] 2 200) @[1 2]) "array/remove 3")
(assert (deep= (array/remove @[1 2 3 4 5] -3 200) @[1 2 3]) "array/remove 4")
(assert (deep= (array/remove @[1 2 3 4 5] -2 200) @[1 2 3]) "array/remove 4")
# array/peek