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C4996 ‘strncpy‘: This function or variable may be unsafe. Consider using strncpy_s instead. To disa.
C4996 'strncpy': This function or variable may be unsafe. Consider using strncpy_s instead. To disa.
原因
strncpy进行字符复制的时候,存在安全性问题(最后不加0),因此现在不建议使用了,所以导致编译不通过
如果src字符串长度小于n,则拷贝完字符串后,在dest后追加0,直到n个。
如果src的长度大于等于n,就截取src的前n个字符,不会在dest后追加0。
解决方案
加入:_CRT_SECURE_NO_WARNINGS
参考
注意事项
如果要使用strncpy,为了防止错误,需要初始化,消除垃圾值
char demo1[11] = { 0 };
strncpy(demo1, "why", 3);
cout << demo1 << endl;
C4996 'strncpy': This function or variable may be unsafe. Consider using strncpy_s instead. To disa.
原因
strncpy进行字符复制的时候,存在安全性问题(最后不加0),因此现在不建议使用了,所以导致编译不通过
如果src字符串长度小于n,则拷贝完字符串后,在dest后追加0,直到n个。
如果src的长度大于等于n,就截取src的前n个字符,不会在dest后追加0。
解决方案
加入:_CRT_SECURE_NO_WARNINGS
参考
注意事项
如果要使用strncpy,为了防止错误,需要初始化,消除垃圾值
char demo1[11] = { 0 };
strncpy(demo1, "why", 3);
cout << demo1 << endl;
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