strerror_s, _wcserror_s
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Header File
string.h, stdio.h
Category
Memory and String Manipulation Routines
Prototype
errno_t strerror_s(char *__s, rsize_t __maxsize, errno_t __errnum);
errno_t _wcserror_s(wchar_t *__s, rsize_t __maxsize, errno_t __errnum);
Description
Reads the error string of a specific error.
strerror_s lets you get the error string of an error specified by __errnum, mapping it to __s.
__s should not be null because, unlike in the strerror case, a run-time constraint violation occurs.
If the length of the string is smaller than __maxsize, then the string is copied to __s.
Return Value
strerror_s returns zero if the length of the desired string is less than __maxsize, or nonzero otherwise.
Example
#include <stdio.h>
#include <errno.h>
#include <string.h>
int main(void)
{
unsigned int s1max = 100;
char message[100];
strerror_s(message, s1max, 3);
printf("Error: %s\n", message); //3 is Path not found.
return 0;
}
Portability
| POSIX | Win32 | ANSI C | ANSI C++ |
|---|---|---|---|
|
+ |