diff options
author | Richard Braun <rbraun@sceen.net> | 2018-08-25 16:42:57 +0200 |
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committer | Richard Braun <rbraun@sceen.net> | 2018-08-25 16:42:57 +0200 |
commit | 9d5114c068344962725b6d39319f4e68d855227d (patch) | |
tree | 0d50a45820209a979337e1111d1becfa4f91507f /src/cbuf.h | |
parent | de950994b2238c2568602dd2a7ac40e827e3d8c6 (diff) |
cbuf: make empty reads succeed
Getting an error when reading 0 bytes is surprising compared to common
read interfaces.
Diffstat (limited to 'src/cbuf.h')
-rw-r--r-- | src/cbuf.h | 7 |
1 files changed, 7 insertions, 0 deletions
@@ -83,6 +83,13 @@ cbuf_clear(struct cbuf *cbuf) } static inline bool +cbuf_index_valid(const struct cbuf *cbuf, size_t index) +{ + return ((index - cbuf->start) <= cbuf_size(cbuf)) + && ((cbuf->end - index) <= cbuf_size(cbuf)); +} + +static inline bool cbuf_range_valid(const struct cbuf *cbuf, size_t start, size_t end) { return (((end - start) <= cbuf_size(cbuf)) |