===c
void *'''Tcl_AttemptAlloc'''(int ''size'');
===
'''Tcl_AttemptAlloc''' is a function that was added to the [Tcl C API] in Tcl 8.4a2.

http://www.tcl.tk/man/tcl8.5/TclLib/Alloc.htm

It is identical in function to [Tcl_Alloc], except that Tcl_AttemptAlloc will not cause the Tcl interpreter to panic if the memory allocation fails. If the allocation fails, these functions will instead return NULL; the caller ''must'' check for this case. Note that this function is more appropriate when allocating a large memory chunk (e.g., image buffer) when failure is more likely and easier to recover from successfully.

**See also**
   * [ckalloc]

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