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1 //===-- runtime/connection.cpp ----------------------------------*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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9 #include "connection.h"
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10 #include "environment.h"
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11 #include <algorithm>
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12
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13 namespace Fortran::runtime::io {
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14
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15 std::size_t ConnectionState::RemainingSpaceInRecord() const {
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16 auto recl{recordLength.value_or(
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17 executionEnvironment.listDirectedOutputLineLengthLimit)};
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18 return positionInRecord >= recl ? 0 : recl - positionInRecord;
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19 }
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20
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21 bool ConnectionState::IsAtEOF() const {
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22 return endfileRecordNumber && currentRecordNumber >= *endfileRecordNumber;
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23 }
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24
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25 void ConnectionState::HandleAbsolutePosition(std::int64_t n) {
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26 positionInRecord = std::max(n, std::int64_t{0}) + leftTabLimit.value_or(0);
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27 }
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28
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29 void ConnectionState::HandleRelativePosition(std::int64_t n) {
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30 positionInRecord = std::max(leftTabLimit.value_or(0), positionInRecord + n);
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31 }
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32 } // namespace Fortran::runtime::io
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