error: jump to label ‘XXXX’ [-fpermissive]

下面的类似的源码在MSVC上能正确编译通过。但是gcc/g++上就会错：

1. if(expr)
2. goto error;

3. size_t var = 0;

4.error:
5 error_handle();

4:1: error: jump to label ‘error’ [-fpermissive]
2:35: error: from here [-fpermissive]

3:9: error: crosses initialization of ‘size_t var’

解决以上问题就是要么所有变量初始化都放在函数开头，要么所有变量就不让它初始化，写成这样:

size_t var;

var = 0;

这样错误就解决了。

reference:

http://tieba.baidu.com/p/3319980115?pid=58076852390&cid=#58076852390

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