std::perror

From Cppreference

C++ Standard Library
Language Utilities library Strings library Containers library Algorithms library Iterators library Numerics library Input/output library Localizations library Regular expressions library (C++11) Atomic operations library (C++11) Thread support library (C++11)
Input/output library
basic_streambuf basic_filebuf basic_stringbuf ios_base basic_ios basic_istream basic_ostream basic_iostream basic_ifstream basic_ofstream basic_fstream basic_istringstream basic_ostringstream basic_stringstream I/O manipulators C-style I/O
C-style I/O
Functions File access fopen freopen fflush fclose setbuf setvbuf Direct input/output fread fwrite Unformatted input/output fgetc fgets fputc fputs getchar gets putchar puts ungetc fgetwc fgetws fputwc fputws getwchar putwchar ungetwc Formatted input/output scanf fscanf sscanf vscanf vfscanf vsscanf (C++11) (C++11) (C++11) printf fprintf sprintf snprintf (C++11) vprintf vfprintf vsprintf vsnprintf (C++11) wscanf fwscanf swscanf vwscanf vfwscanf vswscanf (C++11) (C++11) (C++11) wprintf fwprintf swprintf vwprintf vfwprintf vswprintf File positioning ftell fgetpos fseek fsetpos rewind Error handling clearerr feof ferror perror Operations on files remove rename tmpfile tmpnam

Defined in header <cstdio>
void perror( const char *s );

Prints the contents of the string pointed to by s and an implementation-defined error message corresponding to the global variable errno to stderr

Contents 1 Parameters 2 Return value 3 Example 4 See also

[edit] Parameters

s

-

pointer to a null-terminated string with explanatory message

[edit] Return value

(none)

[edit] Example

This section is incomplete

[edit] See also

feof	checks for the end-of-file (function)
ferror	checks for a file error (function)