c - 使用 '"#include"in c 和此链接错误？

Question

为什么我不能在 vc 6.0 中使用 #include "getline.c" 或 strindex.c？

                              -----test30src.c------

#include <stdio.h>
#include "getline.c"
#include "strindex.c"

#define MAXLINE 1000

char pattern[] = "ould";

int main()
{
    char line[MAXLINE];
    int found = 0;
    while(getline(line, MAXLINE) > 0)
        if(strindex(line, pattern) >= 0){
            printf("%s", line);
            found++;
        }

    return found;
}

                                ------getline.c------
#include <stdio.h>

int getline(char s[], int lim)
{
    int c, i;
    i = 0;

    while(--lim > 0 && (c = getchar()) != EOF && c != '\n')
        s[i++] = c;
    if(c=='\n')
        s[i++] = c;
    s[i] = '\0';
    return i;
}
                               -----strindex.c-----
int strindex(char s[], char t[])
{
    int i, j, k;

    for(i = 0; s[i] != '\0'; i++){
        for(j = i, k = 0; s[j] == t[k]; j++, k++)
            ;
        if(k > 0 && t[k] == '\0')
            return j;
    }

    return -1;

}

错误:

--------------------Configuration: test30 - Win32 Debug--------------------
Linking...
getline.obj : error LNK2005: _getline already defined in test30src.obj
strindex.obj : error LNK2005: _strindex already defined in test30src.obj
Debug/test30.exe : fatal error LNK1169: one or more multiply defined symbols found

Answer 1

你应该包含 string.h 而不是 getline.c