perror
From cppreference.com
Defined in header
<stdio.h>
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void perror( const char *s );
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Prints to stderr the contents of the null-terminated character string pointed to by s
(unless s
is a null pointer), followed by the two characters ": ", followed by the implementation-defined error message describing the error code currently stored in the system variable errno (identical to the output of strerror(errno)), followed by '\n'.
Contents |
[edit] Parameters
s | - | pointer to a null-terminated string with explanatory message |
[edit] Return value
(none)
[edit] Example
Run this code
Output:
open(): No such file or directory
[edit] References
- C11 standard (ISO/IEC 9899:2011):
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- 7.21.10.4 The perror function (p: 339)
- C99 standard (ISO/IEC 9899:1999):
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- 7.19.10.4 The perror function (p: 305)
- C89/C90 standard (ISO/IEC 9899:1990):
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- 4.9.10.4 The perror function
[edit] See also
(C11)(C11)
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returns a text version of a given error code (function) |
C++ documentation for perror
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