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Top Forums Programming Segmentation Fault Using Threads Post 39031 by Perderabo on Monday 4th of August 2003 11:31:59 AM
Old 08-04-2003
All anyone can tell you is that you have an error somewhere in your code. It is possible that you accidently sent yourself that signal. If it came from the kernel, then you attempted to use a memory address in an invalid way.

A reasonable guess might be that you dereferenced a pointer with a screwy value in it. This could be an error related to your use of malloc. But almost any facility can be used incorrectly to cause a segmentation violation.

If you have no other way of finding this, put statements like:
fprintf(stderr, "Got to point 1 \n");
at various places in your code. You should then be able to move them around until you have a single statement surrounded by fprintf's...and you see the output from the first, then the program bombs, and the second is never executed. At that point you know which statement is causing the error.
 

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EXECUTE(7)							   SQL Commands 							EXECUTE(7)

NAME
EXECUTE - execute a prepared statement SYNOPSIS
EXECUTE name [ ( parameter [, ...] ) ] DESCRIPTION
EXECUTE is used to execute a previously prepared statement. Since prepared statements only exist for the duration of a session, the pre- pared statement must have been created by a PREPARE statement executed earlier in the current session. If the PREPARE statement that created the statement specified some parameters, a compatible set of parameters must be passed to the EXECUTE statement, or else an error is raised. Note that (unlike functions) prepared statements are not overloaded based on the type or number of their parameters; the name of a prepared statement must be unique within a database session. For more information on the creation and usage of prepared statements, see PREPARE [prepare(7)]. PARAMETERS
name The name of the prepared statement to execute. parameter The actual value of a parameter to the prepared statement. This must be an expression yielding a value that is compatible with the data type of this parameter, as was determined when the prepared statement was created. OUTPUTS
The command tag returned by EXECUTE is that of the prepared statement, and not EXECUTE. EXAMPLES
Examples are given in the Examples [prepare(7)] section of the PREPARE [prepare(7)] documentation. COMPATIBILITY
The SQL standard includes an EXECUTE statement, but it is only for use in embedded SQL. This version of the EXECUTE statement also uses a somewhat different syntax. SEE ALSO
DEALLOCATE [deallocate(7)], PREPARE [prepare(7)] SQL - Language Statements 2010-05-14 EXECUTE(7)
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