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1 //===-- lib/Evaluate/common.cpp -------------------------------------------===//
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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 "flang/Evaluate/common.h"
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10 #include "flang/Common/idioms.h"
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11
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12 using namespace Fortran::parser::literals;
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13
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14 namespace Fortran::evaluate {
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15
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16 void RealFlagWarnings(
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17 FoldingContext &context, const RealFlags &flags, const char *operation) {
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18 if (flags.test(RealFlag::Overflow)) {
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236
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19 context.messages().Say("overflow on %s"_warn_en_US, operation);
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173
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20 }
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21 if (flags.test(RealFlag::DivideByZero)) {
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221
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22 if (std::strcmp(operation, "division") == 0) {
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236
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23 context.messages().Say("division by zero"_warn_en_US);
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221
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24 } else {
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236
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25 context.messages().Say("division by zero on %s"_warn_en_US, operation);
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221
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26 }
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173
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27 }
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28 if (flags.test(RealFlag::InvalidArgument)) {
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236
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29 context.messages().Say("invalid argument on %s"_warn_en_US, operation);
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173
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30 }
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31 if (flags.test(RealFlag::Underflow)) {
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236
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32 context.messages().Say("underflow on %s"_warn_en_US, operation);
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173
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33 }
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34 }
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35
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36 ConstantSubscript &FoldingContext::StartImpliedDo(
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37 parser::CharBlock name, ConstantSubscript n) {
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38 auto pair{impliedDos_.insert(std::make_pair(name, n))};
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39 CHECK(pair.second);
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40 return pair.first->second;
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41 }
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42
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43 std::optional<ConstantSubscript> FoldingContext::GetImpliedDo(
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44 parser::CharBlock name) const {
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45 if (auto iter{impliedDos_.find(name)}; iter != impliedDos_.cend()) {
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46 return {iter->second};
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47 } else {
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48 return std::nullopt;
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49 }
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50 }
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51
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52 void FoldingContext::EndImpliedDo(parser::CharBlock name) {
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53 auto iter{impliedDos_.find(name)};
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54 if (iter != impliedDos_.end()) {
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55 impliedDos_.erase(iter);
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56 }
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57 }
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58 } // namespace Fortran::evaluate
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