1
我正在運行這個C++程序,它不斷給我sysmalloc assertion
失敗的錯誤。我正在使用g ++ - 4.8。sysmalloc聲明失敗使用矢量
# include <iostream>
# include <complex>
# include <vector>
# include <stdlib.h>
# include <time.h>
# include <climits>
# include <cstdio>
#define getRand(x,y) (rand()%((y)-(x)+1)+(x))
using namespace std;
typedef complex<double> Complex;
typedef struct compositeSignal{
int *frequency;
int *amplitude;
int num;
compositeSignal(int n)
{
frequency = new int(n);
amplitude = new int(n);
num = n;
for(int i=0;i<num;i++)
{
amplitude[i] = getRand(1,100);
cout<<amplitude[i]<<" ";
frequency[i] = getRand(100,600);
cout<<frequency[i]<<endl;
}
}
double getVal(double t)
{
double val = 0;
for(int i = 0;i<num;i++)
val += amplitude[i]*sin(2*3.142*frequency[i]*t);
return val;
}
}compositeSignal;
int main()
{
srand(time(NULL));
int numOfSig = 5;
compositeSignal sig1(numOfSig);// sig2(numOfSig); //define and initialize 2 composite signals
vector<int> result(10);
}
ERROR:
a.out: malloc.c:2369: sysmalloc: Assertion `(old_top == (((mbinp
tr) (((char *) &((av)->bins[((1) - 1) * 2])) - __builtin_offseto
f (struct malloc_chunk, fd)))) && old_size == 0) || ((unsigned l
ong) (old_size) >= (unsigned long)((((__builtin_offsetof (struct
malloc_chunk, fd_nextsize))+((2 * (sizeof(size_t))) - 1)) & ~((
2 * (sizeof(size_t))) - 1))) && ((old_top)->size & 0x1) && ((uns
igned long)old_end & pagemask) == 0)' failed.
Aborted
當在最後一行我分配矢量result
的錯誤是。我如何避免這個錯誤?
我沒有得到的是爲什麼你沒有在你的compositeSignal代碼中使用vector而不是使用「new」(正如答案中指出的那樣,它被錯誤地使用了)。另外,在C++結構定義中「typedef struct」不是必需的。 – PaulMcKenzie
看到我的回答[這裏](https://stackoverflow.com/questions/31936229/c-sysmalloc-assertion-failure/46511080#46511080),同樣的事情發生在我身上。 – forumulator