C++ strerror() Function
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C++ strerror()
The strerror() function translates the error code to a suitable string that describes the error.
This function is defined in <cstring> and <cerrno> header file.
Example
C++ Compiler
#include <iostream>
#include <cstring>
#include <cerrno>
using namespace std;
int main()
{
FILE *fp;
fp = fopen("no-file.txt", "r");
if(fp == NULL)
cout << "Error: " << strerror(errno);
return 0;
}
Output
Error: No such file or directory
Syntax
char *strerror(int errnum)
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| errno | Required | Specifies the error code. |
Return Value
| Value | Explanation |
|---|---|
| Address | Returns a pointer to the error string describing error errnum. |
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