Example: How to protect local variables with fz

Example: How to protect local variables with `fz_var`

A corrected version of the above example is therefore:

$\begin{lstlisting} house_t *build_house(fz_context *ctx) { walls_t *w = NULL; ... ...haps by simply returning NULL. */ return NULL; } return h; } \end{lstlisting}$

Note the calls to fz_var. These warn the compiler that it should take care not to lose updates to w or r if an exception is thrown in the fz_try. See Rule 5 in ExceptionRules ExceptionRules below.

Example: How to protect local variables with fz_var

Example: How to protect local variables with `fz_var`