KH> H5, what happens if I declare it as an an unsigned int, and 
KH> then typecast the sizeof to a unsigned int, do I still need 
KH> to cast the cur_arr_size?..
FA> Sizeof already returns size_t, and cur_arr_size should be an unsigned for 
FA> realloc().

No, cur_arr_size can be a signed integer.  It will be promoted
to an unsigned int when multiplied by the sizeof value.  
BFN.  Paul.
@EOT:

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