Re: [sqlite] Temporary table problem

[Will Leshner]

On Feb 12, 2004, at 4:53 PM, James W. Walker wrote:

I'm using in-memory temporary tables for the first time, and running 
into a problem.  memRbtreeInsert asks sqliteMallocRaw to allocate zero 
bytes, malloc returns NULL, and as a result, sqliteMallocRaw sets the 
sqlite_malloc_failed flag.  According to the C99 standard, it is legal 
for malloc(0) to be NULL.  Should I patch sqliteMallocRaw, or does 
this indicate a problem higher up the call chain?

Which version of SQLite are you using? I think this has been fixed in 
the latest release. This is what I have for sqliteMallocRaw():

void *sqliteMallocRaw(int n){
  void *p;
  if( (p = malloc(n))==0 ){
    if( n>0 ) sqlite_malloc_failed++;
  }
  return p;
}
That looks like it will only increment sqlite_malloc_failed if the 
malloc returns 0 and the amount asked for is greater than 0.

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