[flang] Honor RECL= in list-directed/namelist output

Advancement to new output lines was taking fixed-sized direct-access
and internal character array element lengths into account, but not
RECL= set

[flang] Honor RECL= in list-directed/namelist output

Advancement to new output lines was taking fixed-sized direct-access
and internal character array element lengths into account, but not
RECL= settings from OPEN statements.

Differential Revision: https://reviews.llvm.org/D120837

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[flang] Signal runtime error on WRITE after ENDFILE

After an ENDFILE statement, a WRITE is an error without
a prior BACKSPACE. Also fix the return value for the case
of formatted integer input with

[flang] Signal runtime error on WRITE after ENDFILE

After an ENDFILE statement, a WRITE is an error without
a prior BACKSPACE. Also fix the return value for the case
of formatted integer input with no input digits to be false
(exposed by new test).

Differential Revision: https://reviews.llvm.org/D117346

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[flang] Complete the fix for NAMELIST look-ahead case

When processing the devious NAMELIST input

&group logarray = t t t
= 666 /

for LOGICAL::logarray(3) and INTEGER::t, the runtime library

[flang] Complete the fix for NAMELIST look-ahead case

When processing the devious NAMELIST input

&group logarray = t t t
= 666 /

for LOGICAL::logarray(3) and INTEGER::t, the runtime library
needs to do some look-ahead on the input stream to make sure
that the last "t" on the first line is a truth value rather than
an item name -- which in this case it is. This look-ahead
was implemented in a previous patch but only worked for internal
input cases; this patch implements look-ahead capabilities for
input from an external file, too (and also adjusts repeated
list-directed input items to use this infrastructure, too).

Differential Revision: https://reviews.llvm.org/D113311

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[flang] Remove *- C++ -* incantation from runtime .cpp files. NFC

We should only need to spell the language out in .h files.

Differential Revision: https://reviews.llvm.org/D109138

[flang] Implement NAMELIST I/O in the runtime

Add InputNamelist and OutputNamelist as I/O data transfer APIs
to be used with internal & external list-directed I/O; delete the
needless original namel

[flang] Implement NAMELIST I/O in the runtime

Add InputNamelist and OutputNamelist as I/O data transfer APIs
to be used with internal & external list-directed I/O; delete the
needless original namelist-specific Begin... calls.
Implement NAMELIST output and input; add basic tests.

Differential Revision: https://reviews.llvm.org/D101931

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[flang] Reformat with latest clang-format and .clang-format

Original-commit: flang-compiler/f18@9fe84f45d7fd685051004678d6b5775dcc4c6f8f
Reviewed-on: https://github.com/flang-compiler/f18/pull/1094

[flang] Need <algorithm> for std::min and std::max (flang-compiler/f18#1063)

Original-commit: flang-compiler/f18@d0f9ef7742132a5f9f7173b773aaac934484c7c1
Reviewed-on: https://github.com/flang-compil

[flang] Need <algorithm> for std::min and std::max (flang-compiler/f18#1063)

Original-commit: flang-compiler/f18@d0f9ef7742132a5f9f7173b773aaac934484c7c1
Reviewed-on: https://github.com/flang-compiler/f18/pull/1063

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[flang] Use hash table for UnitMap, avoid C++ STL binary dependence

Scan FORMAT strings locally to avoid C++ binary runtime dependence when computing deepest parenthesis nesting

Remove a dependency

[flang] Use hash table for UnitMap, avoid C++ STL binary dependence

Scan FORMAT strings locally to avoid C++ binary runtime dependence when computing deepest parenthesis nesting

Remove a dependency on ostream from runtime

Remove remaining direct external references from runtime to C++ library binaries

Remove runtime dependences on lib/common

SetPos() and SetRec()

Instantiate templates for input

Begin input; rearrange locking, deal with CLOSE races

View()

Update error message in test to agree with compiler change

First cut at real input

More robust I/O runtime error handling

Debugging of REAL input

Add iostat.{h,cpp}

Rename runtime/numeric-* to runtime/edit-*

Move templates around, templatize integer output editing

Move LOGICAL and CHARACTER output from io-api.cpp to edit-output.cpp

Change pointer argument to reference

More list-directed input

Complex list-directed input

Use enum class Direction rather than bool for templates

Catch up with changes to master

Undo reformatting of Lower code

Use record number instead of subscripts for internal unit

Unformatted sequential backspace

Testing and debugging

Dodge bogus GCC warning

Add <cstddef> for std::size_t to fix CI build

Address review comments

Original-commit: flang-compiler/f18@50406b349609efdde76e48bf2caa039d031dd1c4
Reviewed-on: https://github.com/flang-compiler/f18/pull/1053

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[flang] Progress on Fortran I/O runtime

Use internal units for internal I/O state

Replace use of virtual functions

reference_wrapper

Internal formatted output to array descriptor

Delete dead cod

[flang] Progress on Fortran I/O runtime

Use internal units for internal I/O state

Replace use of virtual functions

reference_wrapper

Internal formatted output to array descriptor

Delete dead code

Begin list-directed internal output

Refactorings and renamings for clarity

List-directed external I/O (character)

COMPLEX list-directed output

Control list items

First cut at unformatted I/O

More OPEN statement work; rename class to ExternalFileUnit

Complete OPEN (exc. for POSITION=), add CLOSE()

OPEN(POSITION=)

Flush buffers on crash and for terminal output; clean up

Documentation

Fix backquote in documentation

Fix typo in comment

Begin implementation of input

Refactor binary floating-point properties to a new header, simplify numeric output editing

Dodge spurious GCC 7.2 build warning

Address review comments

Original-commit: flang-compiler/f18@9c4bba11cf2329575ea9ee446f69e9caa797135c
Reviewed-on: https://github.com/flang-compiler/f18/pull/982

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