Program Listing for File STANDARD.md

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ROSE Handling of C/C++/Fortran standard/dialect
===============================================

## Mapping of -std= option

ROSE recognizes the following standard specification. If more than one specification are possible for one standard, the first one in the list is provided to the backend compiler by ROSE.

### Standards

#### C89

* -std=c89

#### C90

 * -std=c90
 * -std=iso9899:1990
 * -std=iso9899:199409 (amended version of C90, WARNING)

#### C99

 * -std=c99
 * -std=c9x
 * -std=iso9899:1999
 * -std=iso9899:199x

#### C11

 * -std=c11
 * -std=c1x
 * -std=iso9899:2011

#### C17

 * -std=c17
 * -std=c18
 * -std=iso9899:2017
 * -std=iso9899:2018

#### Cxx98

 * -std=c++98

#### Cxx03

 * -std=c++03

#### Cxx11

 * -std=c++11
 * -std=c++0x

#### Cxx14

 * -std=c++14
 * -std=c++1y

#### Cxx17

 * -std=c++17
 * -std=c++1z

#### Cxx20

 * -std=c++20
 * -std=c++2a

#### F77

 * -std=f77

#### F90

 * -std=f90

#### F95

 * -std=f95

#### F2003

 * -std=f2003

#### F2008

 * -std=f2008

#### F2018

 * -std=f2018
 * -std=f2008ts

### GNU

In addition, ROSE recognizes the GNU specific version for C/C++ standard (such as -std=gnu90).
If seen, ROSE stores that information, generating the correct flag for the backend compiler.

### ROSE additions

ROSE also recognize:
 * -std=c
 * -std=gnu
 * -std=c++
 * -std=gnu++
 * -std=fortran
 * -std=upc
 * -std=upcxx

#### Proposed?

Does it make sense to support language extension using the same technique:
 * -std=caf for CoArray Fortran ?
 * -std=opencl
 * -std=cuda