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strerror

Header File

string.h

Category

Memory and String Manipulation Routines

Prototype

char *strerror(int errnum);

Description

Returns a pointer to an error message string.

strerror takes an int parameter errnum, an error number, and returns a pointer to an error message string associated with errnum.

Return Value

strerror returns a pointer to a constructed error string. The error message string is constructed in a static buffer that is overwritten with each call to strerror.

Example

Copy Code

    #include <stdio.h>
    #include <errno.h>
    int main(void)
    {
      char *buffer;
      buffer = strerror(errno);
      printf("Error: %s\n", buffer);
      return 0;
    }

Portability

POSIX | Win32 | ANSI C | ANSI C++
+ | + | + | +

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