esoteric C stuff, what is "debug_flag"??

[syn1kk]

So I have this code that allocates memory for a struct, by the name of
"instance[tuner]", and then it checks to see if the allocation was
successful -->

if( instance[tuner] == NULL )
{
send_tuner_to_user(tuner) ;
send_string_to_user("ERR:could not malloc instance\r\n") ;
debug_flag |= DFLAG__HEAP_FULL ;
return FALSE ;
}


1.) I was just curious, what is this debug_flag?

2.) How do people customarily use this debug flag thing?

3.) Do they use it similiar to how a C++ exception is used??

 

[Walter Roberson]

debug_flag |= DFLAG__HEAP_FULL ;

1.) I was just curious, what is this debug_flag?

A program-specific variable, probably of either file scope or
global scope.

2.) How do people customarily use this debug flag thing?

They don't. The flag is specific to the program, not a standard
C facility.

3.) Do they use it similiar to how a C++ exception is used??

No.

 

[syn1kk]

Thanks so much. I really appreciate this kind of help.

Have a good day,
Trevor