# jmp_buf

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< c‎ | program

Defined in header `<setjmp.h>` |  |
typedef /* unspecified */ jmp_buf; |  |

The `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`.

### References

- C11 standard (ISO/IEC 9899:2011):

  - 7.13/2 Nonlocal jumps <setjmp.h> (p: 262)

- C99 standard (ISO/IEC 9899:1999):

  - 7.13/2 Nonlocal jumps <setjmp.h> (p: 243)

- C89/C90 standard (ISO/IEC 9899:1990):

  - 4.6 NON-LOCAL JUMPS <setjmp.h>

### See also

setjmp | saves the context (function macro)
longjmp | jumps to specified location (function)
C++ documentation for jmp_buf

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