Visual Studio C++的無法解析的外部鏈接程序錯誤

-4

#include <iostream> 
#include <cstdlib> 
#include <ctime> 
#include <cmath> 

using namespace std; 

void countx(double, int[]); 
void initializeArray(int[]); 
void printResult(double,double,int,int[]); 

void main() 


{ 

int i, count,distF[8]; 
double x,sum1,sum2; 

/* Calculation for X~ (x,0,1) */ 

srand(time(NULL)); 
count=0; 
sum1=sum2=0.0; 
initializeArray(distF); 

for(i=1;i<10000;i++) 
{ 

x=(double)(rand())/RAND_MAX; 
if(x>.9 && x<= 1.8) 
count++; 
countx(x,distF); 
sum1 += x; 
sum2 += x*x; 

} 

cout<<"Results for uniform Distribution:\n"; 
printResult(sum1,sum2,count,distF); 

srand(time(NULL)); 
count=0; 
sum1=sum2=0.0; 
initializeArray(distF); 

for(i=1;i<=10000;i++) 
{ 
x= -(log(1-(double) (rand())/RAND_MAX))/2; 
if(x>.9 && x<=1.8) 

countx(x,distF); 
sum1+=x; 
sum2+=x*x; 

} 


cout<<"Reuslts for exponential Distribution 2:\n"; 
printResult(sum1,sum2,count,distF); 

/*** Calculations for P(x=1/2)=1 ***/ 
srand(time(NULL)); 
count=0; 
sum1=sum2=0.0; 
initializeArray(distF); 

for(i=1;i<=1000;i++) 
{ 
x=.5; 
count++; 
countx(x,distF); 
sum1+=x; 
sum2+=x*x; 

} 

cout<<"Reuslts for exponential Distribution 3:\n"; 
printResult(sum1,sum2,count,distF); 

srand(time(NULL)); 
count=0; 
sum1=sum2=0.0; 
initializeArray(distF); 
double temp; 

for(i=1;i<=10000;i++) 
{ 
temp=(double)(rand())/RAND_MAX; 
if(temp<=.5) 
x=.25; 
else 
x=1.50; 
if(x>.9 && x<=1.8) 
count++; 
countx(x,distF); 
sum1 += x; 
sum2 +=x*x; 
} 

cout<<"Reuslts for Distribution #4:\n"; 
printResult(sum1,sum2,count,distF); 

/*Function*/ 

void countx(double x, int distF[]); 
{ 
int j=0; 
double t= -0.25; 
do 
{ 
if(x<=t) 
{ 
for(int k=j;k<8;k++) 
distF[k]++; 
break; 
} 
t += .25; 
j++; 
} 
while(t<=1.50); 
//return; 
} 

void intializeArray(int distF[]); 
{ 
for(int j=0;j<8;j++) 
distF[j]=0; 
//return; 
} 


void printResult(double sum1, double sum2, int count, int distF[]); 
{ 
double ev_x,var_x,pr_x; 
ev_x=sum1/10000; 
var_x=sum2/10000-(ev_x * ev_x); 
pr_x=(double)(count)/10000; 

cout<<"Expected value: " <<ev_x<<endl; 
cout<<"Variance: "<<var_x<<endl; 
cout<<"P(0.9<x<=1.8):" <<pr_x<<endl; 

cout<<"t="; 
for(int k=-1; k<7;k++) 
cout<<.25 *k<<"\t"; 
cout<<"lnFx(t)="; 
for(int j=0;j<8;j++) 
cout<<(double)(distF[j])/10000<<"\t"; 
cout<<endl; 
//return; 
} 

}

需要幫助！使用Microsoft Visual Studio 2012Visual Studio C++的無法解析的外部鏈接程序錯誤

>kikii.obj : error LNK2019: unresolved external symbol "void __cdecl printResult(double,double,int,int * const)" ([email protected]@[email protected]) referenced in function _main 
1>kikii.obj : error LNK2019: unresolved external symbol "void __cdecl countx(double,int * const)" ([email protected]@[email protected]) referenced in function _main 
1>kikii.obj : error LNK2019: unresolved external symbol "void __cdecl initializeArray(int * const)" ([email protected]@[email protected]) referenced in function _main

來源

2012-11-06 user1801736

仔細查看你的定義。 – chris

我想說你需要聲明你的參數爲const，如果它們隨後提供了數組（而不是指針）。你不能使用一個常量數組作爲指針，這會失去它的約束。 – Jack

@Joe，它是;這不是問題。事實上，這個評論的答案有所包含。 – chris

你有兩個問題整體：

1）你的功能都被「定義inside of的main（）` - 你需要將它們移出（功能不能嵌套）

2）你的函數定義在不恰當的地方有一個分號，把它們變成只是原型，後跟一個不相關的代碼塊（這就是爲什麼＃1問題不是一個語法錯誤）。例如：

void intializeArray(int distF[]); // <-- this semi-colon needs to be removed 
    { 
    for(int j=0;j<8;j++) 
    distF[j]=0; 
    //return; 
    }

呵呵，第三個問題，我沒有在第一通知：您已在試圖定義功能拼錯initializeArray()爲intializeArray()。

來源

2012-11-06 01:28:05

Visual Studio C++的無法解析的外部鏈接程序錯誤

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