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Corrected obsolete syntax in span examples.

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Neil MacIntosh 2017-03-20 19:54:30 -07:00 committed by GitHub
parent cc1912bf3a
commit deb47c0c47
1 changed files with 12 additions and 2 deletions
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CppCoreGuidelines.md
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@ -17729,9 +17729,9 @@ Pointers should only refer to single objects, and pointer arithmetic is fragile
{
if (a.length() < 2) return;
int n = *a++; // OK
int n = a[0]; // OK
span<int> q = a + 1; // OK
span<int> q = a.subspan(1); // OK
if (a.length() < 6) return;
@ -17807,6 +17807,16 @@ Dynamic accesses into arrays are difficult for both tools and humans to validate
for (int i = 0; i < COUNT; ++i)
av[i] = i;
}
// ALTERNATIVE Aa: Use a span and range-for
void f1a()
{
int arr[COUNT];
span<int,COUNT> av = arr;
int i = 0;
for (auto& e : av)
e = i++;
}
// ALTERNATIVE B: Use at() for access
void f2()