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Operating Systems OS X (Apple) Segmentation fault when reading out a linked list Post 302566167 by alister on Wednesday 19th of October 2011 04:17:52 PM
Old 10-19-2011
Whether help is sought here or elsewhere, without the code in question, it's unlikely that anyone will be able to help.

Knowing that the fault occurs while attempting to print a string is not very helpful when one does not know how the pointer pointing to the "string" came to hold its value.

Regards and welcome,
Alister
 

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addseverity(3C) 					   Standard C Library Functions 					   addseverity(3C)

NAME
addseverity - build a list of severity levels for an application for use with fmtmsg SYNOPSIS
#include <fmtmsg.h> int addseverity(int severity, const char *string); DESCRIPTION
The addseverity() function builds a list of severity levels for an application to be used with the message formatting facility fmtmsg(). The severity argument is an integer value indicating the seriousness of the condition. The string argument is a pointer to a string describing the condition (string is not limited to a specific size). If addseverity() is called with an integer value that has not been previously defined, the function adds that new severity value and print string to the existing set of standard severity levels. If addseverity() is called with an integer value that has been previously defined, the function redefines that value with the new print string. Previously defined severity levels may be removed by supplying the null string. If addseverity() is called with a negative number or an integer value of 0, 1, 2, 3, or 4, the function fails and returns -1. The values 0-4 are reserved for the standard severity levels and cannot be modified. Identifiers for the standard levels of severity are: MM_HALT Indicates that the application has encountered a severe fault and is halting. Produces the print string HALT. MM_ERROR Indicates that the application has detected a fault. Produces the print string ERROR. MM_WARNING Indicates a condition that is out of the ordinary, that might be a problem, and should be watched. Produces the print string WARNING. MM_INFO Provides information about a condition that is not in error. Produces the print string INFO. MM_NOSEV Indicates that no severity level is supplied for the message. Severity levels may also be defined at run time using the SEV_LEVEL environment variable (see fmtmsg(3C)). RETURN VALUES
Upon successful completion, addseverity() returns MM_OK. Otherwise it returns MM_NOTOK. EXAMPLES
Example 1 Example of addseverity() function. When the function call addseverity(7,"ALERT") is followed by the call fmtmsg(MM_PRINT, "UX:cat", 7, "invalid syntax", "refer to manual", "UX:cat:001") the resulting output is UX:cat: ALERT: invalid syntax TO FIX: refer to manual UX:cat:001 ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |Safe | +-----------------------------+-----------------------------+ SEE ALSO
fmtmsg(1), fmtmsg(3C), gettxt(3C), printf(3C), attributes(5) SunOS 5.11 29 Dec 1996 addseverity(3C)
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