'FILE' : illegal use of this type as an expression编译错误的解决
2009-11-06 21:43
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作者:朱金灿
http://blog.csdn.net/clever101
今天同事遇到一个编译错误:'FILE':illegaluseofthistypeasanexpression。我感到很奇怪:
明明已经包含了stdio.h,怎么FILE结构体不能用呢?
后来上网搜了一下,原来是C语言的不允许随时定义变量,所有定义的变量都只能放在函数开头,
这也是C和C++的重要区别。同事的出错正是在C函数中随机地定义了一个FILE结构体变量(不是放在函数
开头),所以出错了。
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