调试断言从由用户输入的初始化类的阵列失败 [英] Debug assertion fail from initializing an array of a class by user input
问题描述
我有一个调试断言运行时,失败 Dinner.Init(篮,袋);
错误消息是向量下标越界。
我认为这是与可变大小的数组的初始化。它需要一个非常长的时间在步晚餐(INT NUM):苹果(NUM){}
是错误消息和延迟相关?是否有解决方案为?
在foo.h中
的#include<矢量>
EXTERN INT NUM1
EXTERN INT NUM2
#定义篮= NUM1 + NUM2
#定义手袋= NUM1 * 2
结构AppleStruct
{
的std ::矢量<&INT GT;块;
AppleStruct(){}
AppleStruct(INT NUM):大块(NUM){}
};
类晚餐
{
的std ::矢量<&AppleStruct GT;苹果;
上市:
晚餐(){}
晚餐(INT NUM):苹果(NUM){}
无效初始化(INT NUM1,NUM2 INT);
}无效晚餐::初始化(INT NUM1,NUM2 INT)
{
INT I,J; 对于(i = 0; I< NUM1,我++)//填写残疾人的一切
{
为(J = 0; J< NUM2; J ++)
{
苹果[I] .Chunks [J] = 1;
}
}
}
在Foo.cpp中
的#includefoo.h中
INT NUM1;
INT NUM2;
INT主(INT ARGC,CHAR *的argv [])
{
sscanf_s(ARGV [1]%d个,&安培; NUM1);
sscanf_s(的argv [2],%d个,&放大器; NUM2);
AppleStruct(袋);
晚餐(篮);
Dinner.Init(篮,袋);
返回0;
}
在for循环中,你赋值给向量块
,但你没有为分配空间一个结构来保存块载体。
为(i = 0; I< NUM1,我++)//填写残疾人的一切
{
结构AppleStruct newstruct;
为(J = 0; J< NUM2; J ++)
{
newstruct.Chunks.push_back(1);
}
Apple.push_back(newstruct);
}
I have a debug assertion that fails when running Dinner.Init(Baskets,Bags);
The error message is vector subscript out of range.
I think it has something to do with the initialization of the variable sized arrays. It takes an unusually long time at the step Dinner(int num): Apple(num){ }
.
Are the error message and delay related? Is there a solution for both?
In foo.h
#include <vector>
extern int num1
extern int num2
#define Baskets = num1+num2
#define Bags = num1*2
struct AppleStruct
{
std::vector<int> Chunks;
AppleStruct(){}
AppleStruct(int num):Chunks(num){ }
};
Class Dinner
{
std::vector<AppleStruct> Apple;
public:
Dinner(){}
Dinner(int num): Apple(num){ }
void Init(int num1, int num2);
}
void Dinner::Init(int num1, int num2)
{
int i, j;
for (i=0; i<num1; i++) // Fill everything INVALIDs
{
for (j=0; j<num2; j++)
{
Apple[i].Chunks[j]=1;
}
}
}
In foo.cpp
#include "foo.h"
int num1;
int num2;
int main(int argc, char *argv[])
{
sscanf_s(argv[1],"%d",&num1);
sscanf_s(argv[2],"%d",&num2);
AppleStruct(Bags);
Dinner(Baskets);
Dinner.Init(Baskets,Bags);
return 0;
}
In the for loop ,you are assigning values to the vector chunk
but you have not allocated space for a structure to hold the chunk vector.
for (i=0; i<num1; i++) // Fill everything INVALIDs
{
struct AppleStruct newstruct;
for (j=0; j<num2; j++)
{
newstruct.Chunks.push_back(1);
}
Apple.push_back(newstruct);
}
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