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37 * Implements gmx::test::CommandLine.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_testutils
44 #include "cmdlinetest.h"
53 #include "gromacs/commandline/cmdlineprogramcontext.h"
54 #include "gromacs/utility/arrayref.h"
55 #include "gromacs/utility/gmxassert.h"
62 /********************************************************************
66 class CommandLine::Impl
69 Impl(const char *const cmdline[], size_t count);
72 std::vector<char *> args_;
73 std::vector<char *> argv_;
77 CommandLine::Impl::Impl(const char *const cmdline[], size_t count)
80 argv_.reserve(count + 1);
81 argc_ = static_cast<int>(count);
82 for (size_t i = 0; i < count; ++i)
84 char *arg = strdup(cmdline[i]);
87 throw std::bad_alloc();
92 argv_.push_back(NULL);
95 CommandLine::Impl::~Impl()
97 for (size_t i = 0; i < args_.size(); ++i)
103 /********************************************************************
107 CommandLine::CommandLine()
108 : impl_(new Impl(NULL, 0))
112 CommandLine::CommandLine(const ConstArrayRef<const char *> &cmdline)
113 : impl_(new Impl(cmdline.data(), cmdline.size()))
117 CommandLine::CommandLine(const CommandLine &other)
118 : impl_(new Impl(other.argv(), other.argc()))
122 CommandLine::~CommandLine()
126 void CommandLine::initFromArray(const ConstArrayRef<const char *> &cmdline)
128 impl_.reset(new Impl(cmdline.data(), cmdline.size()));
131 void CommandLine::append(const char *arg)
133 GMX_RELEASE_ASSERT(impl_->argc_ == static_cast<int>(impl_->args_.size()),
134 "Command-line has been modified externally");
135 size_t newSize = impl_->args_.size() + 1;
136 impl_->args_.reserve(newSize);
137 impl_->argv_.reserve(newSize + 1);
138 char *newArg = strdup(arg);
141 throw std::bad_alloc();
143 impl_->args_.push_back(newArg);
144 impl_->argv_.pop_back(); // Remove the trailing NULL.
145 impl_->argv_.push_back(newArg);
146 impl_->argv_.push_back(NULL);
147 impl_->argc_ = static_cast<int>(newSize);
153 //! Helper function for converting values to strings
154 template <typename T>
155 std::string value2string(T value)
157 std::stringstream ss;
164 void CommandLine::addOption(const char *name,
171 void CommandLine::addOption(const char *name,
172 const std::string &value)
174 addOption(name, value.c_str());
177 void CommandLine::addOption(const char *name,
181 append(value2string(value));
184 void CommandLine::addOption(const char *name,
188 append(value2string(value));
191 int &CommandLine::argc()
195 char **CommandLine::argv()
197 return &impl_->argv_[0];
199 int CommandLine::argc() const
203 const char *const *CommandLine::argv() const
205 return &impl_->argv_[0];
207 const char *CommandLine::arg(int i) const
209 return impl_->argv_[i];
212 std::string CommandLine::toString() const
214 return CommandLineProgramContext(argc(), argv()).commandLine();