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Added peek.

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Branimir Karadžić
2016-03-10 21:12:39 -08:00
parent 679c0421e8
commit 15a36340ef
1 changed files with 20 additions and 1 deletions
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21
include/bx/readerwriter.h
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@@ -77,7 +77,7 @@ namespace bx
return _reader->read(_data, _size, _err);
}
/// Write value.
/// Read value.
template<typename Ty>
inline int32_t read(ReaderI* _reader, Ty& _value, Error* _err = NULL)
{
@@ -207,6 +207,25 @@ namespace bx
{
};
/// Peek data.
inline int32_t peek(ReaderSeekerI* _reader, void* _data, int32_t _size, Error* _err = NULL)
{
BX_ERROR_SCOPE(_err);
int64_t offset = bx::seek(_reader);
int32_t size = _reader->read(_data, _size, _err);
bx::seek(_reader, offset, bx::Whence::Begin);
return size;
}
/// Peek value.
template<typename Ty>
inline int32_t peek(ReaderSeekerI* _reader, Ty& _value, Error* _err = NULL)
{
BX_ERROR_SCOPE(_err);
BX_STATIC_ASSERT(BX_TYPE_IS_POD(Ty) );
return peek(_reader, &_value, sizeof(Ty), _err);
}
struct BX_NO_VTABLE WriterSeekerI : public WriterI, public SeekerI
{
};