19 Diagnostics library [diagnostics]

Subclause [stacktrace] describes components that C++ programs may use to store the stacktrace of the current thread of execution and query information about the stored stacktrace at runtime.

The invocation sequence of the current evaluation $x_0$ in the current thread of execution is a sequence $(x_0,\dots ,x_n)$ of evaluations such that, for i  ≥ 0, $x_i$ is within the function invocation $x_{i+1}$ ([intro.execution]).

A stacktrace is an approximate representation of an invocation sequence and consists of stacktrace entries.

A stacktrace entry represents an evaluation in a stacktrace.