我正在使用C ++制作一个命令行程序并遇到了一些奇怪的问题。 我是C ++的新手，所以这可能就是为什么我如此困惑。 我正在使用MinGW进行编译和调试。
以下是当前代码：
#include <string>
#include <vector>
#include <iostream>
#include <stdlib.h>
using namespace std;
// Global Vars
string headerSpace = "\t\t";
string instructionSpace = "\t";
string prmpt = "WIO:+>";
string daysOFWeek [7] = {"mon", "tue", "wed", "thur", "fri", "sat", "sun"};
vector<string> commandHelpGet ("To view a day's exercises type:: get (date)\n", "To view today's required exercises type:: get required\n");
vector<string> commandHelpRem ( "To clear a day's record type:: remove (date)\n", "To remove an exercise from your routine type:: remove (name)\n");
vector<string> commandHelpRec ("To record a day's exercises type:: record (date)\n");
vector<string> commandHelpAdd ("To add an exercise to your routine type:: add (name) (rep/min) (daysOFWeek)\n");
// Method prototypes
vector<string> splitString(string input, string splitter);
void processGetCom(vector<string> input);
void processRecordCom(vector<string> input);
void processRemoveCom(vector<string> input);
void processAddCom(vector<string> input);
void help(string context);
void printError(string reason);
string requiredExercises();
string getRecord(string input);
int main()
{
cout << "\n\n" + headerSpace + "---------- Welcome to WorkItOut! ----------\n";
help("");
string inRaw = "";
vector<string> input;
while (true)
{
cout << prmpt;
string inRaw = "";
getline(cin, inRaw);
input = splitString(inRaw, " ");
// Overflow guard
if (input.size() > 4)
{
printError("To many arguments; Please enter a valid command");
}
if (input[0].compare("get") == 0)
{
processGetCom(input);
}
else if (input[0].compare("record") == 0)
{
processRecordCom(input);
}
else if (input[0].compare("remove") == 0)
{
processRemoveCom(input);
}
else if (input[0].compare("add") == 0)
{
processAddCom(input);
}
else if (input[0].compare("exit") == 0)
{
exit(0);
}
}
}
/* Updated C. A. Acred on 05/22/2015
* This method takes a string and splits it into a vector with the second input.
*/
vector<string> splitString(string input, string splitter)
{
vector<string> output; // initialize output vector
int currentElement = 0; // set current vector element to 0
string currentChar; // declare a container for the current char
output.push_back(""); // Push an empty string onto output
for(int i = 0; i < input.length(); i++) // for each char in input
{
currentChar = input.substr(i, 1); // currentChar = the char in input @ i
if (currentChar.compare(splitter) == 0) // if this char and the splitter are the same
{
while (currentChar.compare(splitter) == 0) // while they are the same
{
i++; // advance i by 1
currentChar = input.substr(i, 1); // get the next char
}
output.push_back(currentChar); // put the current char as the first in a new element
currentElement++; // point to the new element
}
else
{
output[currentElement] = output[currentElement] + currentChar; // output @ currentElement += currentChar
}
}
return output;
}
string requiredExercises()
{
return "yo";
}
/* Updated C. A. Acred on 5/27/15
* Processes get commands.
*/
void processGetCom(vector<string> input)
{
if (input.size() > 2)
{
printError("To many arguments; Enter a valid command");
}
if (input[1].compare("required") == 0)
{
cout << requiredExercises();
}
else
{
cout << getRecord(input[1]);
}
}
void processRecordCom(vector<string> input)
{
}
void processRemoveCom(vector<string> input)
{
}
void processAddCom(vector<string> input)
{
}
void printError(string reason)
{
}
/** Updated C. A. Acred 05/22/2015
* Print help on commands.
*/
void help(string context)
{
if (context.empty())
{
int i;
for (i = 0; i < commandHelpGet.size(); i++)
{
cout << commandHelpGet[i];
}
for (i = 0; i < commandHelpRec.size(); i++)
{
cout << commandHelpRec[i];
}
for (i = 0; i < commandHelpRem.size(); i++)
{
cout << commandHelpRem[i];
}
for (i = 0; i < commandHelpAdd.size(); i++)
{
cout << commandHelpAdd[i];
}
}
cout << instructionSpace + "To exit type:: exit\n";
cout << instructionSpace + "-+| date format = m/d/yr |+-\n\t\tExample:: 05/20/2015\n";
cout << instructionSpace + "-+| daysOFWeek format = day/day/day..etc(up to 7) |+-\n\t\tExample:: mon/tue/wed/thur/fri/sat/sun\n\n\n\n";
cout << instructionSpace + "-+| rep format = rep:(#) |+-\n\t\tExample:: rep:15\n\n\n\n";
cout << instructionSpace + "-+| min format = min:(#) |+-\n\t\tExample:: min:15\n\n\n\n";
}
这是我从g ++中得到的奇怪错误：
main.cpp:24:84: error: invalid conversion from 'const char*' to 'unsigned int' [-fpermissive]
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_vector.h:263:7: error: initializing argument 1 of 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>::size_type, const value_type&, const allocator_type&) [with _Tp = std::basic_string<char>, _Alloc = std::allocator<std::basic_stri
ng<char> >, std::vector<_Tp, _Alloc>::size_type = unsigned int, std::vector<_Tp, _Alloc>::value_type = std::basic_string<char>, std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::basic_string<char> >]' [-fpermissive]
main.cpp:25:111: error: invalid conversion from 'const char*' to 'unsigned int' [-fpermissive]
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_vector.h:263:7: error: initializing argument 1 of 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>::size_type, const value_type&, const allocator_type&) [with _Tp = std::basic_string<char>, _Alloc = std::allocator<std::basic_stri
ng<char> >, std::vector<_Tp, _Alloc>::size_type = unsigned int, std::vector<_Tp, _Alloc>::value_type = std::basic_string<char>, std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::basic_string<char> >]' [-fpermissive]
In file included from c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/vector:63:0,
from main.cpp:10:
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_construct.h: In function 'void std::_Construct(_T1*, const _T2&) [with _T1 = std::basic_string<char>, _T2 = char]':
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_uninitialized.h:77:3: instantiated from 'static _ForwardIterator std::__uninitialized_copy<_TrivialValueTypes>::__uninit_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = const char*, _ForwardIterator = std::bas
ic_string<char>*, bool _TrivialValueTypes = false]'
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_uninitialized.h:119:41: instantiated from '_ForwardIterator std::uninitialized_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = const char*, _ForwardIterator = std::basic_string<char>*]'
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_uninitialized.h:259:63: instantiated from '_ForwardIterator std::__uninitialized_copy_a(_InputIterator, _InputIterator, _ForwardIterator, std::allocator<_Tp>&) [with _InputIterator = const char*, _ForwardIterator = std::basic_string<char>*
, _Tp = std::basic_string<char>]'
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_vector.h:1113:4: instantiated from 'void std::vector<_Tp, _Alloc>::_M_range_initialize(_ForwardIterator, _ForwardIterator, std::forward_iterator_tag) [with _ForwardIterator = const char*, _Tp = std::basic_string<char>, _Alloc = std::alloca
tor<std::basic_string<char> >]'
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_vector.h:1091:4: instantiated from 'void std::vector<_Tp, _Alloc>::_M_initialize_dispatch(_InputIterator, _InputIterator, std::__false_type) [with _InputIterator = const char*, _Tp = std::basic_string<char>, _Alloc = std::allocator<std::ba
sic_string<char> >]'
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_vector.h:340:4: instantiated from 'std::vector<_Tp, _Alloc>::vector(_InputIterator, _InputIterator, const allocator_type&) [with _InputIterator = const char*, _Tp = std::basic_string<char>, _Alloc = std::allocator<std::basic_string<char> >
, std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::basic_string<char> >]'
main.cpp:22:140: instantiated from here
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_construct.h:84:7: error: invalid conversion from 'char' to 'const char*' [-fpermissive]
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/basic_string.tcc:214:5: error: initializing argument 1 of 'std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _CharT*, const _Alloc&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]' [-fpermiss
ive]
非常感谢任何理解和解决此错误的帮助。
我更改了矢量commandHelpGet - commandHelpAdd的初始化以使用花括号，但现在我收到一个新错误：
main.cpp:22:16: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x [enabled by default]
main.cpp:22:139: error: in C++98 'commandHelpGet' must be initialized by constructor, not by '{...}'
main.cpp:23:16: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x [enabled by default]
main.cpp:23:147: error: in C++98 'commandHelpRem' must be initialized by constructor, not by '{...}'
main.cpp:24:16: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x [enabled by default]
main.cpp:24:84: error: in C++98 'commandHelpRec' must be initialized by constructor, not by '{...}'
main.cpp:24:84: error: invalid conversion from 'const char*' to 'unsigned int' [-fpermissive]
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_vector.h:263:7: error: initializing argument 1 of 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>::size_type, const value_type&, const allocator_type&) [with _Tp = std::basic_string<char>, _Alloc = std::allocator<std::basic_stri
ng<char> >, std::vector<_Tp, _Alloc>::size_type = unsigned int, std::vector<_Tp, _Alloc>::value_type = std::basic_string<char>, std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::basic_string<char> >]' [-fpermissive]
main.cpp:25:16: warning: extended initializer lists only available with -std=c++0x or -std=gnu++0x [enabled by default]
main.cpp:25:111: error: in C++98 'commandHelpAdd' must be initialized by constructor, not by '{...}'
main.cpp:25:111: error: invalid conversion from 'const char*' to 'unsigned int' [-fpermissive]
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_vector.h:263:7: error: initializing argument 1 of 'std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>::size_type, const value_type&, const allocator_type&) [with _Tp = std::basic_string<char>, _Alloc = std::allocator<std::basic_stri
ng<char> >, std::vector<_Tp, _Alloc>::size_type = unsigned int, std::vector<_Tp, _Alloc>::value_type = std::basic_string<char>, std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::basic_string<char> >]' [-fpermissive]
In file included from c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/vector:63:0,
from main.cpp:10:
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_construct.h: In function 'void std::_Construct(_T1*, const _T2&) [with _T1 = std::basic_string<char>, _T2 = char]':
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_uninitialized.h:77:3: instantiated from 'static _ForwardIterator std::__uninitialized_copy<_TrivialValueTypes>::__uninit_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = const char*, _ForwardIterator = std::bas
ic_string<char>*, bool _TrivialValueTypes = false]'
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_uninitialized.h:119:41: instantiated from '_ForwardIterator std::uninitialized_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = const char*, _ForwardIterator = std::basic_string<char>*]'
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_uninitialized.h:259:63: instantiated from '_ForwardIterator std::__uninitialized_copy_a(_InputIterator, _InputIterator, _ForwardIterator, std::allocator<_Tp>&) [with _InputIterator = const char*, _ForwardIterator = std::basic_string<char>*
, _Tp = std::basic_string<char>]'
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_vector.h:1113:4: instantiated from 'void std::vector<_Tp, _Alloc>::_M_range_initialize(_ForwardIterator, _ForwardIterator, std::forward_iterator_tag) [with _ForwardIterator = const char*, _Tp = std::basic_string<char>, _Alloc = std::alloca
tor<std::basic_string<char> >]'
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_vector.h:1091:4: instantiated from 'void std::vector<_Tp, _Alloc>::_M_initialize_dispatch(_InputIterator, _InputIterator, std::__false_type) [with _InputIterator = const char*, _Tp = std::basic_string<char>, _Alloc = std::allocator<std::ba
sic_string<char> >]'
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_vector.h:340:4: instantiated from 'std::vector<_Tp, _Alloc>::vector(_InputIterator, _InputIterator, const allocator_type&) [with _InputIterator = const char*, _Tp = std::basic_string<char>, _Alloc = std::allocator<std::basic_string<char> >
, std::vector<_Tp, _Alloc>::allocator_type = std::allocator<std::basic_string<char> >]'
main.cpp:22:139: instantiated from here
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/stl_construct.h:84:7: error: invalid conversion from 'char' to 'const char*' [-fpermissive]
c:\mingw\bin\../lib/gcc/mingw32/4.6.2/include/c++/bits/basic_string.tcc:214:5: error: initializing argument 1 of 'std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _CharT*, const _Alloc&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]' [-fpermiss
ive]
- CAA14
答案 0 :(得分：0)
看看你的矢量初始化。如果您打算使用列表语法，那么请使用大括号而不是parens：
vector<string> commandHelpGet { "To view a day's exercises type:: get (date)\n", "To view today's required exercises type:: get required\n" };
查看示例here。