error: 'for' loop initial declarations are only allowed in C99 mode

 

　　出现错误：

error: 'for' loop initial declarations are only allowed in C99 mode

note: use option -std=c99 or -std=gun99 to comple your code

　　原因：所采用的代码格式是C99规范，而当前解释器不符合。

　　

　　解决办法：

Settings

-> Compiler and debugger settings

-> Global compiler settings

-> Other options

-> 在编辑框中输入：-std=c99

-> OK

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