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| author | Robin Watts <Robin.Watts@artifex.com> | 2011-10-04 20:10:13 +0100 |
|---|---|---|
| committer | Robin Watts <Robin.Watts@artifex.com> | 2011-10-04 20:10:13 +0100 |
| commit | 0a31674b1e78930e86d4d7408082f564bc550cf7 (patch) | |
| tree | eb570a3a79d3d4c51c1152a253dd35cf82e026ee /fitz/fitz.h | |
| parent | 1cc3bf432a6d94e6f8411b55ee0f591d098f2062 (diff) | |
| download | mupdf-0a31674b1e78930e86d4d7408082f564bc550cf7.tar.xz | |
Establish 'break scope' within fz_try macro
It is vital that no one returns from within fz_try. As such it's often
necessary to jump out of an fz_try. This can mean using a label at the
end of the fz_try section to goto.
By introducing a "do { } while (0)" around the contents of the fz_try
we allow people to 'break' (or 'continue') to get out neatly.
Diffstat (limited to 'fitz/fitz.h')
| -rw-r--r-- | fitz/fitz.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fitz/fitz.h b/fitz/fitz.h index 83eade3b..da39b04d 100644 --- a/fitz/fitz.h +++ b/fitz/fitz.h @@ -164,9 +164,10 @@ struct fz_error_context_s #define fz_try(ctx) \ if (fz_push_try(ctx->error), \ !setjmp(ctx->error->stack[ctx->error->top].buffer)) \ - { + { do { #define fz_catch(ctx) \ + } while(0); \ ctx->error->stack[ctx->error->top].failed = 0; \ } \ else \ |