error: ‘for’ loop initial declarations are only allowed in
2014-08-12 20:04
309 查看
使用gcc,出现如下错误:
thread_join.c:7:5: error: ‘for’ loop initial declarations are only allowed in C99 mode
for (int i = 0; i < 2; ++i)
^
thread_join.c:7:5: note: use option -std=c99 or -std=gnu99 to compile your code
![](http://img.blog.csdn.net/20140812200040031?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvbG9uZ2ZlaWFo/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast)
出错的代码如下:
![](http://img.blog.csdn.net/20140812200223140?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvbG9uZ2ZlaWFo/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/SouthEast)
这是因为使用gcc时,直接在for循环中初始化落变量,这是因为gcc基于c89标准,换成C99标准就可以在for循环内定义i变量了。
gcc thread_join.c -std=c99 -lpthread -o thread_join
thread_join.c:7:5: error: ‘for’ loop initial declarations are only allowed in C99 mode
for (int i = 0; i < 2; ++i)
^
thread_join.c:7:5: note: use option -std=c99 or -std=gnu99 to compile your code
出错的代码如下:
这是因为使用gcc时,直接在for循环中初始化落变量,这是因为gcc基于c89标准,换成C99标准就可以在for循环内定义i变量了。
gcc thread_join.c -std=c99 -lpthread -o thread_join
相关文章推荐
- error: ‘for’ loop initial declarations are only allowed in C99 mode
- Code::Blocks 关于error: 'for' loop initial declarations are only allowed in C99 mode
- codeblocks gcc error: 'for' loop initial declarations are only allowed in C99 mode|
- error: 'for' loop initial declarations are only allowed in C99 mode
- error: ‘for’ loop initial declarations are only allowed in C99 mode
- error: 'for' loop initial declarations are only allowed in C99 mode
- error: 'for' loop initial declarations are only allowed in C99 mode
- error: 'for' loop initial declarations are only allowed in C99 mode
- error: 'for' loop initial declarations are only allowed in C99 mode
- error: ‘for’ loop initial declarations are only allowed in C99 mode
- error: 'for' loop initial declarations are only allowed in C99 mode
- error: ‘for’ loop initial declarations are only allowed in C99 mode
- error: 'for' loop initial declarations are only allowed in C99 mode 的原因及解决办法
- error: ‘for’ loop initial declarations are only allowed in C99 mode
- GCC编译错误:error: 'for' loop initial declarations are only allowed in C99 mode
- error: 'for' loop initial declarations are only allowed in C99 mode
- error: ‘for’ loop initial declarations are only allowed in C99 mode
- error: ‘for’ loop initial declarations are only allowed in C99 mode
- error: 'for' loop initial declarations are only allowed in C99 mode
- error: 'for' loop initial declarations are only allowed in C99 mode