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explicitly defined std::allocator (#7094)

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This commit is contained in:
Derek Bailey
2022-02-09 15:09:52 -08:00
committed by GitHub
parent e910bddbcc
commit ed6ae8d322
1 changed files with 13 additions and 12 deletions
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21
include/flatbuffers/flatbuffer_builder.h
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@@ -42,14 +42,15 @@ inline voffset_t FieldIndexToOffset(voffset_t field_id) {
return static_cast<voffset_t>((field_id + fixed_fields) * sizeof(voffset_t));
}
template<typename T, typename Alloc>
template<typename T, typename Alloc = std::allocator<T>>
const T *data(const std::vector<T, Alloc> &v) {
// Eventually the returned pointer gets passed down to memcpy, so
// we need it to be non-null to avoid undefined behavior.
static uint8_t t;
return v.empty() ? reinterpret_cast<const T *>(&t) : &v.front();
}
template<typename T, typename Alloc> T *data(std::vector<T, Alloc> &v) {
template<typename T, typename Alloc = std::allocator<T>>
T *data(std::vector<T, Alloc> &v) {
// Eventually the returned pointer gets passed down to memcpy, so
// we need it to be non-null to avoid undefined behavior.
static uint8_t t;
@@ -653,7 +654,7 @@ class FlatBufferBuilder {
/// buffer as a `vector`.
/// @return Returns a typed `Offset` into the serialized data indicating
/// where the vector is stored.
template<typename T, typename Alloc>
template<typename T, typename Alloc = std::allocator<T>>
Offset<Vector<T>> CreateVector(const std::vector<T, Alloc> &v) {
return CreateVector(data(v), v.size());
}
@@ -710,7 +711,7 @@ class FlatBufferBuilder {
/// buffer as a `vector`.
/// @return Returns a typed `Offset` into the serialized data indicating
/// where the vector is stored.
template<typename Alloc>
template<typename Alloc = std::allocator<std::string>>
Offset<Vector<Offset<String>>> CreateVectorOfStrings(
const std::vector<std::string, Alloc> &v) {
return CreateVectorOfStrings(v.cbegin(), v.cend());
@@ -839,7 +840,7 @@ class FlatBufferBuilder {
/// serialize into the buffer as a `vector`.
/// @return Returns a typed `Offset` into the serialized data indicating
/// where the vector is stored.
template<typename T, typename Alloc>
template<typename T, typename Alloc = std::allocator<T>>
Offset<Vector<const T *>> CreateVectorOfStructs(
const std::vector<T, Alloc> &v) {
return CreateVectorOfStructs(data(v), v.size());
@@ -855,7 +856,7 @@ class FlatBufferBuilder {
/// to the FlatBuffer struct.
/// @return Returns a typed `Offset` into the serialized data indicating
/// where the vector is stored.
template<typename T, typename S, typename Alloc>
template<typename T, typename S, typename Alloc = std::allocator<T>>
Offset<Vector<const T *>> CreateVectorOfNativeStructs(
const std::vector<S, Alloc> &v, T (*const pack_func)(const S &)) {
return CreateVectorOfNativeStructs<T, S>(data(v), v.size(), pack_func);
@@ -869,7 +870,7 @@ class FlatBufferBuilder {
/// serialize into the buffer as a `vector`.
/// @return Returns a typed `Offset` into the serialized data indicating
/// where the vector is stored.
template<typename T, typename S, typename Alloc>
template<typename T, typename S, typename Alloc = std::allocator<S>>
Offset<Vector<const T *>> CreateVectorOfNativeStructs(
const std::vector<S, Alloc> &v) {
return CreateVectorOfNativeStructs<T, S>(data(v), v.size());
@@ -890,7 +891,7 @@ class FlatBufferBuilder {
/// serialize into the buffer as a `vector`.
/// @return Returns a typed `Offset` into the serialized data indicating
/// where the vector is stored.
template<typename T, typename Alloc>
template<typename T, typename Alloc = std::allocator<T>>
Offset<Vector<const T *>> CreateVectorOfSortedStructs(
std::vector<T, Alloc> *v) {
return CreateVectorOfSortedStructs(data(*v), v->size());
@@ -904,7 +905,7 @@ class FlatBufferBuilder {
/// serialize into the buffer as a `vector`.
/// @return Returns a typed `Offset` into the serialized data indicating
/// where the vector is stored.
template<typename T, typename S, typename Alloc>
template<typename T, typename S, typename Alloc = std::allocator<T>>
Offset<Vector<const T *>> CreateVectorOfSortedNativeStructs(
std::vector<S, Alloc> *v) {
return CreateVectorOfSortedNativeStructs<T, S>(data(*v), v->size());
@@ -982,7 +983,7 @@ class FlatBufferBuilder {
/// offsets to store in the buffer in sorted order.
/// @return Returns a typed `Offset` into the serialized data indicating
/// where the vector is stored.
template<typename T, typename Alloc>
template<typename T, typename Alloc = std::allocator<T>>
Offset<Vector<Offset<T>>> CreateVectorOfSortedTables(
std::vector<Offset<T>, Alloc> *v) {
return CreateVectorOfSortedTables(data(*v), v->size());