tree 6793853d39d5224971543b79c0ba3d3d45d536f7
parent 1537d6680bb66dc2484e11815bc2cd0e31ca39cc
author Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1614441369 -0300
committer Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1614441369 -0300

Stack reallocation done in two phases

$he stack reallocation is done in two steps (allocation + free) because
the correction of the pointers pointing into the stack must be done
while both addresses (the old stack and the new one) are valid.  In ISO
C, any pointer use after the pointer has been deallocated is undefined
behavior. The compiler option '-fsanitize=pointer-subtract' (plus what
it needs to work) complained about the old implementation.