我在Visual Studio中遇到一个烦人的问题。确实，我正在设计编译器，并且为错误消息保留了一个文件。它可与字典（std :: map）：代码→消息一起使用。
但是，对字典所做的更改似乎并不影响程序，该程序的反应就像没有进行任何更改。
我很难用单词更清楚地解释，所以我记录了a video。 （它不属于该网站，抱歉，我没有找到如何将其包括在这篇文章中。）
如您所见，我们使用一个函数来显示错误消息，该错误消息是从字典中获取的：
std::map<ErrorCodes, std::string> Messages;
...
std::string ErrMessage = Messages[code];
我不明白为什么所做的更改不会按预期影响程序。似乎Visual Studio不再编译部分代码...
实际上，在记录中，我们可以看到控制台中显示的错误消息是[E29]（在[E80]之前的旧消息），并且显示的消息不是与枚举相对应的消息。要么。
这个问题看似简单，但老实说我看不出它可能在哪里...
编辑：
这是更详细的说明：
在视频中，控制台中运行的程序是我的。 “编译未成功”是我自己的错误消息，通常会显示出来。
这是错误呼叫显示的呼叫代码：
exception.ThrowError(exception.E0080);
E0080是错误列表代码，这是错误消息文件：
*。hpp：
class Exception {
public:
enum ErrorCodes {
E0000,
E0001, // Can't load file
E0002, // Can't find header file
E0003, // Expected file name
E0004, // Unexpected token
E0005, // Expected Identifier
E0006, // Value without storage object
E0007, // Already existing object
E0008, // Redefined preprocessor definition
E0009, // Redefined variable
E0010, // Redefined function
E0011, // Redefined object
E0012, // Redefined rule
E0013, // Redefined value
E0014, // Undefined identifier
E0015, // Buoyage symbol missing
E0016, // Expected end of line symbol (';')
E0017, // Unexpected character
E0018, // Unknown token
E0019, // Non-close comment
E0020, // Non-compliant typing
E0021, // Use of uninitialized data
E0022, // Unacceptable suffix
E0023, // Invalid keyword combination
E0024, // Declaration not in accordance with non-local use
E0025, // Incompatible value with type / object defined
E0026, // Constant value too wide
E0027, // Too much initialization value in a static size array
E0028, // Non-conforming identifier
E0029, // Expected statement
E0030, // Wrong identifier format (the expected format is ASCII)
E0031, // Wrong pointer initialization
E0032, // Non-valid literal suffix
E0033, // No object can have the identifier 'vanaur'
E0034, // Non-existent object field
E0035, // Non-existent object method
E0036, // Missing function call arguments
E0037, // A rvalue cannot be accessed via the pointers
E0038, // The use of a pointer is unacceptable in this context
E0039, // A reference cannot be made to a constant value
E0040, // Invalid assembler code in external expression
E0041, // The types of the two objects do not match in the image assignment
E0042, // Only a defined object can be destroyed by the delete operator
E0043, // Empty template
E0044, // Object not existing in this namespace
E0045, // Typage temptation with a non-instanciated structure
E0046, // Temptation to access a private field of the object
E0047, // Temptation to access a private method of the object
E0048, // Invalid operator
E0049, // Reserved identifier
E0050, // Wrong usage of postfix and prefix operator
E0051, // Temptation to access an inaccessible element in a table
E0052, // The main function can only have 3 arguments variation
E0053, // This function is not defined as being able to return an array
E0054, // A non-instanciated structure cannot be used as an object instance with the keyword 'new'.
E0055, // Wrong choice of the anonymous string concatenation operator (between '^' and'+')
E0056, // An object can only inherit from one other object
E0057, // Incorrect 'typename' value
E0058, // Incorrect 'typesize' value
E0059, // The identifier of a process ('proc') cannot contain spaces
E0060, // The identifier of a process ('proc') cannot contain balises
E0061, // An exception cannot be thrown out of a function
E0062, // Syntax error
E0063, // The increment value of an iteration (with step) must be numerical
E0064, // An anonymous array serving as an iterator to a for loop cannot be empty
E0065, // Wrong ternary condition format
E0066, // A 'ret' instruction must only fit on one instruction (one line = one ';')
E0067, // Division by zero
E0068, // Wrong enumeration value
E0069, // 'Upon' block members cannot contain expressions other than 'it'
E0070, // A match/case expression must contain at least one 'case' expression before using 'default'
E0071, // Unknown error
E0072, // Undefined object
E0073, // Not a valid math expression
E0074, // Expected character
E0075, // Unbalanced brackets
E0076, // Non-ascii character detected
E0077, // The current version of Arlia only accepts constant values as optional function parameters
E0078, // Undefined type
E0079, // Statement not recognised in this context
E0080, // Invalid statement
};
void ThrowError(ErrorCodes, char);
void ThrowError(ErrorCodes, std::string);
void ThrowError(ErrorCodes, token_t);
void ThrowError(ErrorCodes, token_t, Expr);
void ThrowError(ErrorCodes, Expr);
private:
std::map<ErrorCodes, std::string> Messages =
{
{ E0001, " Can't load file" },
{ E0002, " Can't find header file" },
{ E0003, " Expected file name" },
{ E0004, " Unexpected token" },
{ E0005, " Expected Identifier" },
{ E0006, " Value without storage object" },
{ E0007, " Already existing object" },
{ E0008, " Redefined preprocessor definition" },
{ E0009, " Redefined variable" },
{ E0010, " Redefined function" },
{ E0011, " Redefined object" },
{ E0012, " Redefined rule" },
{ E0013, " Redefined value" },
{ E0014, " Undefined identifier" },
{ E0015, " Buoyage symbol missing" },
{ E0016, " Expected end of line symbol (';')" },
{ E0017, " Unexpected character" },
{ E0018, " Unknown token" },
{ E0019, " Non-close comment" },
{ E0020, " Non-compliant typing" },
{ E0021, " Use of uninitialized data" },
{ E0022, " Unacceptable suffix" },
{ E0023, " Invalid keyword combination" },
{ E0024, " Declaration not in accordance with non-local use" },
{ E0025, " Incompatible value with type / object defined" },
{ E0026, " Constant value too wide" },
{ E0027, " Too much initialization value in a static size array" },
{ E0028, " Non-conforming identifier" },
{ E0029, " Expected statement" },
{ E0030, " Wrong identifier format (the expected format is ASCII)" },
{ E0031, " Wrong pointer initialization" },
{ E0032, " Non-valid literal suffix" },
{ E0033, " No object can have the identifier 'vanaur'" },
{ E0034, " Non-existent object field" },
{ E0035, " Non-existent object method" },
{ E0036, " Missing function call arguments" },
{ E0037, " A rvalue cannot be accessed via the pointers" },
{ E0038, " The use of a pointer is unacceptable in this context" },
{ E0039, " A reference cannot be made to a constant value" },
{ E0040, " Invalid assembler code in external expression" },
{ E0041, " The types of the two objects do not match in the image assignment" },
{ E0042, " Only a defined object can be destroyed by the delete operator" },
{ E0043, " Empty template" },
{ E0044, " Object not existing in this namespace" },
{ E0045, " Typage temptation with a non-instanciated structure" },
{ E0046, " Temptation to access a private field of the object" },
{ E0047, " Temptation to access a private method of the object" },
{ E0048, " Invalid operator" },
{ E0049, " Reserved identifier" },
{ E0050, " Wrong usage of postfix and prefix operator" },
{ E0051, " Temptation to access an inaccessible element in a table" },
{ E0052, " The main function can only have 3 arguments variation" },
{ E0053, " This function is not defined as being able to return an array" },
{ E0054, " A non-instanciated structure cannot be used as an object instance with the keyword 'new'" },
{ E0055, " Wrong choice of the anonymous string concatenation operator (between '^' and'+')" },
{ E0056, " An object can only inherit from one other object" },
{ E0057, " Incorrect 'typename' value" },
{ E0058, " Incorrect 'typesize' value" },
{ E0059, " The identifier of a process ('proc') cannot contain spaces" },
{ E0060, " The identifier of a process ('proc') cannot contain balises" },
{ E0061, " An exception cannot be thrown out of a function" },
{ E0062, " Syntax error" },
{ E0063, " The increment value of an iteration (with step) must be numerical" },
{ E0064, " An anonymous array serving as an iterator to a for loop cannot be empty" },
{ E0065, " Wrong ternary condition format" },
{ E0066, " A 'ret' instruction must only fit on one instruction (one line = one ';')" },
{ E0067, " Division by zero" },
{ E0068, " Wrong enumeration value" },
{ E0069, " 'Upon' block members cannot contain expressions other than 'it'" },
{ E0070, " A match/case expression must contain at least one 'case' expression before using 'default'" },
{ E0071, " Unknown error" },
{ E0072, " Undefined object" },
{ E0073, " Not a valid math expression" },
{ E0074, " Expected character" },
{ E0075, " Unbalanced brackets" },
{ E0076, " Non-ascii character detected" },
{ E0077, " The current version of Arlia only accepts constant values as optional function parameters" },
{ E0078, " Undefined type" },
{ E0079, " Statement not recognised in this context" },
{ E0080, " Invalid statement" },
{ E0000, " ... " }
};
};
*。cpp仅实现以下功能：
ThrowError(ErrorCodes code) {
colored_message_error("[ E" + std::to_string(code) + " ]" + Messages[code], Color::yellow);
}
如您所见，该列表包含80 + 1个元素。 E0080的枚举索引为80。
当我尝试访问它时：
exception.ThrowError(exception.E0080);
我的程序似乎不想更新信息。也就是说，发送给该函数的枚举常量：实际上，程序会显示我在它之前设置的值（E29）。
就像我在做这个一样：
exception.ThrowError(exception.E0029);
所以，不，这很可能不是愚蠢的调试或编译问题（我仍然知道如何使用编译器^^）。 Visual Studio不更新此新数据似乎很奇怪（为什么？为什么？）。