比如写出下面这段程序: for (int i = 0; i < n; ++i) do_something(); 然后用gcc编译,会报 ‘for’ loop initial declarations are only allowed in C99 mode的错误. 原因是在循环条件中声明变量的话,只在C99标准中支持,C90标准不支持. 所以改成: int i; for (i = 0; i < n; ++i) do_something(); 这样编译就可以通过了.…
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 出错的代码如下: 这是因为使用gcc时,直接在for循环中…
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 ->…
error: 'for' loop initial declarations are only allowed in C99 mode 使用gcc编译代码是报出 error: 'for' loop initial declarations are only allowed in C99 mode note: use option -std=c99 or -std=gnu99 to compile your code 错误,这是由于在gcc中直接在for循环中初始化了增量: [cpp] view…
1 Python版本导致的异常 /root/Python-3.5.7/Modules/_pickle.c: In function ‘PyMemoTable_Copy’: /root/Python-3.5.7/Modules/_pickle.c:677:5: error: ‘for’ loop initial declarations are only allowed in C99 mode for (size_t i = 0; i < self->mt_allocated; i++) { ^…