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array: Avoid sorting 0-sized arrays

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Fixes #2264
This commit is contained in:
Timm Bäder
2020-12-09 13:57:24 +01:00
committed by Philip Withnall
parent 737a853f8d
commit c2052a4ada
2 changed files with 40 additions and 20 deletions
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44
glib/garray.c
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@@ -822,11 +822,12 @@ g_array_sort (GArray *farray,
g_return_if_fail (array != NULL);
/* Don't use qsort as we want a guaranteed stable sort */
g_qsort_with_data (array->data,
array->len,
array->elt_size,
(GCompareDataFunc)compare_func,
NULL);
if (array->len > 0)
g_qsort_with_data (array->data,
array->len,
array->elt_size,
(GCompareDataFunc)compare_func,
NULL);
}
/**
@@ -853,11 +854,12 @@ g_array_sort_with_data (GArray *farray,
g_return_if_fail (array != NULL);
g_qsort_with_data (array->data,
array->len,
array->elt_size,
compare_func,
user_data);
if (array->len > 0)
g_qsort_with_data (array->data,
array->len,
array->elt_size,
compare_func,
user_data);
}
/**
@@ -1984,11 +1986,12 @@ g_ptr_array_sort (GPtrArray *array,
g_return_if_fail (array != NULL);
/* Don't use qsort as we want a guaranteed stable sort */
g_qsort_with_data (array->pdata,
array->len,
sizeof (gpointer),
(GCompareDataFunc)compare_func,
NULL);
if (array->len > 0)
g_qsort_with_data (array->pdata,
array->len,
sizeof (gpointer),
(GCompareDataFunc)compare_func,
NULL);
}
/* Please keep this doc-comment in sync with
@@ -2060,11 +2063,12 @@ g_ptr_array_sort_with_data (GPtrArray *array,
{
g_return_if_fail (array != NULL);
g_qsort_with_data (array->pdata,
array->len,
sizeof (gpointer),
compare_func,
user_data);
if (array->len > 0)
g_qsort_with_data (array->pdata,
array->len,
sizeof (gpointer),
compare_func,
user_data);
}
/**