shm_ read.c:3:1: error: expected identifier or‘(' before ‘int’ int main( ){
时间: 2024-05-07 12:23:39 浏览: 23
这个错误通常是因为在代码中缺少某些语法元素,例如分号、括号或标识符等。
在你的代码中,可能是因为你忘记了在 `main` 函数的括号中添加参数。在C语言中,`main` 函数必须有以下格式:
```c
int main(int argc, char *argv[]) {
// your code here
return 0;
}
```
其中 `argc` 表示命令行参数的数量, `argv` 表示命令行参数的字符串数组。
请检查你的代码并确保 `main` 函数的格式正确。
相关问题
_csv.Error: iterable expected, not numpy.int32
这个错误通常发生在使用pandas库读取csv文件时,其中某一列的数据类型为numpy.int32,而pandas默认将其解析为单个整数而不是可迭代对象。
解决办法是在读取csv文件时指定该列的数据类型为object或str,例如:
```python
import pandas as pd
data = pd.read_csv('myfile.csv', dtype={'mycolumn': object})
```
这将强制pandas将该列解析为字符串,从而避免了该错误。当然,你也可以根据实际情况选择其他的数据类型。
error in include chain (cmb_def.h): expected identifier or
This error usually occurs when the compiler encounters an unexpected token or character in the include chain. In this case, it seems like the issue is with the `cmb_def.h` header file.
One possible cause of this error is a missing semicolon or other syntax error in a file that is included before `cmb_def.h`. Check the code in the files that are included before `cmb_def.h` to see if there are any errors.
Another possible cause is a circular dependency in the include chain. For example, if `cmb_def.h` includes a file that also includes `cmb_def.h`, this can cause an error. Check the include chain to make sure there are no circular dependencies.
It's also possible that the `cmb_def.h` file itself has an error. Check the contents of `cmb_def.h` to see if there are any syntax errors or other issues.
Overall, this error message can be caused by a number of different issues, so it's important to carefully inspect your code and the include chain to identify the root cause.