perror
void perror (const char errorMessagePrefix[]);
Purpose
Maps the error number stored in the global variable errno
to an error message. It writes a sequence of characters to the standard error stream. If
errorMessagePrefix is not NULL, the error message
will look like the following:
errorMessagePrefix: Error ##\n
If errorMessagePrefix is NULL, the error message will look like the following:
Error ##\n
Parameters
| Input | ||
| Name | Type | Description |
| errorMessagePrefix | const char [] |
Contains a pointer to the string that is used as an error message prefix. If
errorMessagePrefix is not NULL, the error message
will look like the following: errorMessagePrefix: Error ##\n If errorMessagePrefix is NULL, the error message will look like the following: Error ##\n |
Return Value
None.
Additional Information
Library: ANSI C Library
Include file: ansi_c.h
LabWindows/CVI compatibility: LabWindows/CVI 3.0 and later