C++ 中使用string 死机

发布于 2022-11-22 15:58:28 浏览：997 订阅该版

[tocm]

rtthread中使用 `string` 赋值报错

```c
#include <string>
#include <string>

extern "C" int app_main(void)
{

printf("\033[1;35m%s[%d] %s\n\033[m", __FUNCTION__, __LINE__, __FILE__);
    std::string strtest;
    printf("\033[1;35m%s[%d] %s\n\033[m", __FUNCTION__, __LINE__, __FILE__);
    strtest = "123";
    printf("\033[1;35m%s[%d] %s\n\033[m", __FUNCTION__, __LINE__, __FILE__);
	}
```

```
## Starting application at 0x80000000 ...

\ | /
- RT -     Thread Operating System
 / | \     4.1.0 build Nov 22 2022 15:39:10
 2006 - 2022 Copyright by RT-Thread team
rt-thread entry app main
app_main[75] applications/app_main.cpp
app_main[77] applications/app_main.cpp
undefined instruction:
Execption:
r00:0x8010ebb1 r01:0x8010eba0 r02:0xffffff04 r03:0x8010eba8
r04:0x8010eb98 r05:0x00000000 r06:0x00000003 r07:0x00000003
r08:0x8010eba0 r09:0x00000000 r10:0x8010eba0
fp :0x00000003 ip :0x01010101
sp :0x8010eb48 lr :0x800ba87f pc :0x80028b1c
cpsr:0x80000033
thread   pri  status      sp     stack size max used left tick  error
-------- ---  ------- ---------- ----------  ------  ---------- ---
tshell    20  ready   0x00000048 0x00001000    01%   0x0000000a 000
sys work  23  ready   0x00000048 0x00000800    03%   0x0000000a 000
tidle0    31  ready   0x00000048 0x00000400    07%   0x00000020 000
main      10  running 0x000000e0 0x00000800    35%   0x00000007 000
shutdown...
(0) assertion failed at function:rt_hw_cpu_shutdown, line number:74
```