Returns a description of the evaluation represented by*this on success, or an empty string on failure other than allocation failure, e.g. when*this is empty.

[edit]Parameters

(none)

[edit]Return value

A description of the represented evaluation on success, an empty string on failure other than allocation failure.

[edit]Exceptions

Throwsstd::bad_alloc if memory for the internal data structures or the resulting string cannot be allocated.

[edit]Notes

Custom allocators support for this function is not provided, because the implementations usually require platform specific allocations, system calls and a lot of CPU intensive work, while a custom allocator does not provide benefits for this function as the platform specific operations take an order of magnitude more time than the allocation.

[edit]Example

• In other languages

• Español
• 日本語
• Русский
• 中文