作者diskk (oi)
看板Programming
標題[問題] C++ Template
時間Sat Jan 1 01:56:24 2011
請教一個問題
我有如下一段程式碼
要讓函式接收各種型態的Vector
但無法編譯
請問要如何修改
謝謝
#include <iostream>
#include <vector>
template <typename T> int vecSize(vector<T> a);
using namespace std;
int main()
{
vector<int> vec(10,0);
cout << vecSize(vec) << endl;
return 0;
}
template <typename T>
int vecSize(vector<T> a)
{
return a.size();
}
錯誤訊息如下
D:\My Dropbox\School\Digital Image Processing\fftDev\main.cpp|3|error:
template declaration of 'int vecSize'|
D:\My Dropbox\School\Digital Image Processing\fftDev\main.cpp|3|error:
'vector' was not declared in this scope|
D:\My Dropbox\School\Digital Image Processing\fftDev\main.cpp|3|error:
expected primary-expression before '>' token|
D:\My Dropbox\School\Digital Image Processing\fftDev\main.cpp|3|error: 'a'
was not declared in this scope|
D:\My Dropbox\School\Digital Image Processing\fftDev\main.cpp||In function
'int main()':|
D:\My Dropbox\School\Digital Image Processing\fftDev\main.cpp|10|error:
'vecSize' was not declared in this scope|
||=== Build finished: 5 errors, 0 warnings ===|
--
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◆ From: 125.232.184.24
1F：→ akasan:你的你prototype放在using前面,他認不得vec 61.60.216.177 01/01 02:04
2F：→ diskk:原來只有一行之差，感謝您!! 125.232.184.24 01/01 02:09
3F：推 tomap41017:這是線上編譯嗎??140.112.244.171 01/01 21:49
4F：→ loveme00835:樓上的意思是? >"<140.121.197.115 01/01 21:56
5F：推 tomap41017:就是compiler在dropbox上嗎？140.112.244.171 01/03 19:25
6F：→ tomap41017:不然error msg怎麼印出來在那邊XD140.112.244.171 01/03 19:25
7F：推 LPH66:那個是本機資料夾而已吧 XD 140.112.28.92 01/05 01:46