I am trying to read strings from file and add them to my array of structs but when i do i get some random characters at the end of one or two strings.Here is my code for reading strings line by line:
我试图从文件中读取字符串并将它们添加到我的结构数组中,但是当我在一个或两个字符串的末尾得到一些随机字符时。这是我逐行读取字符串的代码:
while ((read = getline(&line, &len, fp)) != -1) {
strncpy(&structures[i].id,line,4); //copies the first four characters to my array of structures
...
}
When i print out the structures[0].id it prints "WW23�" when it should be just "WW23".It does that with couple of strings, although not with all of them. My struct looks like this.
当我打印出结构[0]。它打印“WW23 ”时它应该只是“WW23”。它用几个字符串来做,但不是全部。我的结构看起来像这样。
struct observers
{
char id[13];
...
};
It reads from file properly at least it gets the integer values right.
它正确地从文件读取至少它获得正确的整数值。
2 个解决方案
#1
4
You are not terminating the string. Add '\0' at the end structures[i].id[4] = '\0'. It should work fine.
你没有终止字符串。在结构[i] .id [4] ='\ 0'处添加'\ 0'。它应该工作正常。
#2
1
You probably need to add '\0' as the 5'th character to terminate the string.
您可能需要添加'\ 0'作为终止字符串的第5个字符。
#1
4
You are not terminating the string. Add '\0' at the end structures[i].id[4] = '\0'. It should work fine.
你没有终止字符串。在结构[i] .id [4] ='\ 0'处添加'\ 0'。它应该工作正常。
#2
1
You probably need to add '\0' as the 5'th character to terminate the string.
您可能需要添加'\ 0'作为终止字符串的第5个字符。