std::jmp_buf (3) - Linux Manuals
std::jmp_buf: std::jmp_buf
NAME
Synopsis
Defined in header <csetjmp>
typedef /* unspecified */ jmp_buf;
The std::jmp_buf type is an array type suitable for storing information to restore a calling environment. The stored information is sufficient to restore execution at the correct block of the program and invocation of that block. The state of floating-point status flags, or open files, or any other data is not stored in an object of type jmp_buf.
See also
setjmp (function macro)
longjmp (function)