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concepts: Use the std::contiguous_iterator concept

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This also covers std::span, which does not have a const iterator.

Also renames IsSTLContainer to IsContiguousContainer to explicitly convey its semantics.
This commit is contained in:
Morph 2022-10-26 00:41:54 -04:00
parent d8e3380ea5
commit 8b4d5aeb4f
3 changed files with 10 additions and 20 deletions
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12
src/common/fs/file.h
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@ -209,8 +209,8 @@ public:
/**
* Helper function which deduces the value type of a contiguous STL container used in ReadSpan.
* If T is not a contiguous STL container as defined by the concept IsSTLContainer, this calls
* ReadObject and T must be a trivially copyable object.
* If T is not a contiguous container as defined by the concept IsContiguousContainer, this
* calls ReadObject and T must be a trivially copyable object.
*
* See ReadSpan for more details if T is a contiguous container.
* See ReadObject for more details if T is a trivially copyable object.
@ -223,7 +223,7 @@ public:
*/
template <typename T>
[[nodiscard]] size_t Read(T& data) const {
if constexpr (IsSTLContainer<T>) {
if constexpr (IsContiguousContainer<T>) {
using ContiguousType = typename T::value_type;
static_assert(std::is_trivially_copyable_v<ContiguousType>,
"Data type must be trivially copyable.");
@ -235,8 +235,8 @@ public:
/**
* Helper function which deduces the value type of a contiguous STL container used in WriteSpan.
* If T is not a contiguous STL container as defined by the concept IsSTLContainer, this calls
* WriteObject and T must be a trivially copyable object.
* If T is not a contiguous STL container as defined by the concept IsContiguousContainer, this
* calls WriteObject and T must be a trivially copyable object.
*
* See WriteSpan for more details if T is a contiguous container.
* See WriteObject for more details if T is a trivially copyable object.
@ -249,7 +249,7 @@ public:
*/
template <typename T>
[[nodiscard]] size_t Write(const T& data) const {
if constexpr (IsSTLContainer<T>) {
if constexpr (IsContiguousContainer<T>) {
using ContiguousType = typename T::value_type;
static_assert(std::is_trivially_copyable_v<ContiguousType>,
"Data type must be trivially copyable.");