17.2.339. MPI_Status_f2c — Open MPI 5.0.7 documentation

# 17.2.339. MPI_Status_f2c

MPI_Status_f2c, MPI_Status_f2c - Translates a C status into a Fortran INTEGER-style status, or vice versa.

## 17.2.339.1. SYNTAX

### 17.2.339.1.1. C Syntax

    #include <mpi.h>

    int MPI_Status_f2c(const MPI_Fint *f_status, MPI_Status *c_status)
    int MPI_Status_c2f(const MPI_Status *c_status, MPI_Fint *f_status)

## 17.2.339.2. PARAMETERS

- `f_status` : mpi-style INTEGER MPI status object

- `c_status` : C-style MPI status object

## 17.2.339.3. DESCRIPTION

These two procedures are provided in C to convert from a Fortran status (which is an array of integers) to a C status (which is a structure), and vice versa. The conversion occurs on all the information in status, including that which is hidden. That is, no status information is lost in the conversion.

When using MPI_Status_f2c, if `f_status` is a valid Fortran status, but not the Fortran value of `MPI_STATUS_IGNORE` or `MPI_STATUSES_IGNORE`, then MPI_Status_f2c returns in `c_status` a valid C status with the same content. If `f_status` is the Fortran value of `MPI_STATUS_IGNORE` or `MPI_STATUSES_IGNORE`, or if `f_status` is not a valid Fortran status, then the call is erroneous.

When using MPI_Status_c2f, the opposite conversion is applied. If `c_status` is `MPI_STATUS_IGNORE` or `MPI_STATUSES_IGNORE`, or if `c_status` is not a valid C status, then the call is erroneous.

The input status has the same source, tag and error code values as the output status, and returns the same answers when queried for count, elements, and cancellation. The conversion function may be called with an input status argument that has an undefined error field, in which case the value of the error field in the output status argument is undefined.

## 17.2.339.4. NOTES

These functions are only available in C; they are not available in any of the Fortran MPI interfaces.

See also

MPI_Status_f082c MPI_Status_f2f08