Provide a namespace for a suite of typedefs and pure procedures that encapsulate, platform-dependent types and APIs.
Declared in <bsls_platformutil.h>
struct PlatformUtil;| Name | Description |
|---|---|
Int64 | 64-bit signed integer type for all supported platforms. |
IntPtr | The aliases UintPtr and IntPtr are guaranteed to have the same size as pointers. |
MaxAlign | The alias MaxAlign refers to a type that is maximally-aligned on the current platform. |
Uint64 | The aliases Int64 and Uint64 stand for whatever type Types implements for the appropriate supported platforms. |
UintPtr | Unsigned integer type guaranteed to have the same size as pointers. |
size_type | The alias size_type refers to the preferred type for denoting a number of elements in either bslma allocators or container types. Note that this type is signed, as negative values may make sense in certain contexts. Also note that the standard-compliant allocators (e.g., bsl::allocator and std::allocator) use an unsigned size type, but that is fine because they also have a mechanism (max_size) to determine overflows resulting from converting from one size type to the other. |
| Name | Description |
|---|---|
isBigEndian | Return true if this platform is "big-endian", and false otherwise. Note that "big-endian" (i.e., the most significant byte of data at the lowest byte address) is consistent with network byte order. |
isLittleEndian | Return true if this platform is "little-endian", and false otherwise. Note that "little-endian" (i.e., the least significant byte of data at the lowest byte address) is inconsistent with network byte order. |
roundUpToMaximalAlignment | Return the specified size (in bytes) rounded up to the smallest integral multiple of the maximum alignment. The behavior is undefined unless 0 <= size. |