Use nullptr instead of 0 for pointers

[libs/core.git] / source / core / getopt.h

diff --git a/source/core/getopt.h b/source/core/getopt.h
index 8d78a728169a74e2b5715fce27ee63bccd100cc0..ade620bf94d5c46bc2b6c36197a807a4b4edb986 100644 (file)
--- a/source/core/getopt.h
+++ b/source/core/getopt.h
@@ -13,13 +13,13 @@ namespace Msp {
 class usage_error: public std::runtime_error
 {
 private:
-       std::string help_;
+       std::string m_help;
 
 public:
-       usage_error(const std::string &w, const std::string &h = std::string()): std::runtime_error(w), help_(h) { }
-       ~usage_error() throw() { }
+       usage_error(const std::string &w, const std::string &h = std::string()): std::runtime_error(w), m_help(h) { }
+       virtual ~usage_error() throw() = default;
 
-       const char *help() const throw() { return help_.c_str(); }
+       const char *help() const throw() { return m_help.c_str(); }
 };
 
 
@@ -72,9 +72,9 @@ public:
        class Option
        {
        protected:
-               Option() { }
+               Option() = default;
        public:
-               virtual ~Option() { }
+               virtual ~Option() = default;
 
                /// Sets help text for the option.
                virtual Option &set_help(const std::string &) = 0;
@@ -92,9 +92,9 @@ public:
        class Argument
        {
        protected:
-               Argument() { }
+               Argument() = default;
        public:
-               virtual ~Argument() { }
+               virtual ~Argument() = default;
 
                virtual Argument &set_help(const std::string &) = 0;
        };
@@ -103,9 +103,9 @@ private:
        class Store
        {
        protected:
-               Store() { }
+               Store() = default;
        public:
-               virtual ~Store() { }
+               virtual ~Store() = default;
 
                virtual Store *clone() const = 0;
 
@@ -117,14 +117,14 @@ private:
        class OptionImpl: public Option
        {
        protected:
-               char shrt;
+               char shrt = 0;
                std::string lng;
-               ArgType arg_type;
-               unsigned seen_count;
-               unsigned *ext_seen_count;
+               ArgType arg_type = NO_ARG;
+               unsigned seen_count = 0;
+               unsigned *ext_seen_count = nullptr;
                std::string help;
-               std::string metavar;
-               Store *store;
+               std::string metavar = "ARG";
+               Store *store = nullptr;
 
        public:
                OptionImpl(char, const std::string &, const Store &, ArgType);
@@ -147,9 +147,9 @@ private:
        {
        private:
                std::string name;
-               ArgType type;
+               ArgType type = REQUIRED_ARG;
                std::string help;
-               Store *store;
+               Store *store = nullptr;
 
        public:
                ArgumentImpl(const std::string &, const Store &, ArgType);
@@ -203,22 +203,15 @@ private:
                { data.push_back(lexical_cast<typename T::value_type>(a)); }
        };
 
-       typedef std::list<OptionImpl *> OptionList;
-       typedef std::list<ArgumentImpl *> ArgumentList;
-
-       bool help;
-       OptionList opts;
-       ArgumentList args;
+       bool help = false;
+       std::vector<OptionImpl *> opts;
+       std::vector<ArgumentImpl *> args;
        std::vector<std::string> args_raw;
 
 public:
        GetOpt();
        ~GetOpt();
 
-       /** Returns any non-option arguments encountered during processing.
-       Deprecated. */
-       const std::vector<std::string> &get_args() const { return args_raw; }
-
        /** Adds an option with both short and long forms.  Processing depends on
        the type of the destination variable and whether an argument is taken or
        not.  With an argument, the value is lexical_cast to the appropriate type
@@ -228,6 +221,13 @@ public:
        Option &add_option(char s, const std::string &l, T &d, ArgType a = NO_ARG)
        { return add_option(s, l, SimpleStore<T>(d), a); }
 
+       /** Adds an option with both short and long forms.  The option may be
+       specified multiple times, and the argument from each occurrence is stored in
+       the list.  The argument type must be REQUIRED_ARG. */
+       template<typename T>
+       Option &add_option(char s, const std::string &l, std::vector<T> &d, ArgType a = REQUIRED_ARG)
+       { return add_option(s, l, ListStore<std::vector<T> >(d), a); }
+
        /** Adds an option with both short and long forms.  The option may be
        specified multiple times, and the argument from each occurrence is stored in
        the list.  The argument type must be REQUIRED_ARG. */
@@ -246,6 +246,13 @@ public:
        Argument &add_argument(const std::string &n, T &d, ArgType a = REQUIRED_ARG)
        { return add_argument(n, SimpleStore<T>(d), a); }
 
+       /** Adds a positional argument list.  If the list is declared as required,
+       at least one element must be given; an optional list may be empty.  Only one
+       list may be added, and optional fixed arguments can't be used with it. */
+       template<typename T>
+       Argument &add_argument(const std::string &n, std::vector<T> &d, ArgType a = REQUIRED_ARG)
+       { return add_argument(n, ListStore<std::vector<T> >(d), a); }
+
        /** Adds a positional argument list.  If the list is declared as required,
        at least one element must be given; an optional list may be empty.  Only one
        list may be added, and optional fixed arguments can't be used with it. */
@@ -292,6 +299,9 @@ template<> inline void GetOpt::SimpleStore<unsigned>::store()
 template<> inline void GetOpt::SimpleStore<std::string>::store(const std::string &a)
 { data = a; }
 
+template<> inline void GetOpt::ListStore<std::vector<std::string> >::store(const std::string &a)
+{ data.push_back(a); }
+
 template<> inline void GetOpt::ListStore<std::list<std::string> >::store(const std::string &a)
 { data.push_back(a); }