[PATCH 1/7] Split AVUNERROR and AVERROR definition. Simplify an incoming patch for dropping AVUNERROR and somehow increase readability.

[Stefano Sabatini]

---
 libavutil/error.h |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/libavutil/error.h b/libavutil/error.h
index a386c1f..4e6a52e 100644
--- a/libavutil/error.h
+++ b/libavutil/error.h
@@ -27,12 +27,18 @@
 /* error handling */
 #if EINVAL > 0
 #define AVERROR(e) (-(e)) /**< Returns a negative error code from a POSIX error code, to return from library functions. */
-#define AVUNERROR(e) (-(e)) /**< Returns a POSIX error code from a library function error return value. */
 #else
 /* Some platforms have E* and errno already negated. */
 #define AVERROR(e) (e)
+#endif
+
+#if EINVAL > 0
+#define AVUNERROR(e) (-(e)) /**< Returns a POSIX error code from a library function error return value. */
+#else
+/* Some platforms have E* and errno already negated. */
 #define AVUNERROR(e) (e)
 #endif
+
 #define AVERROR_UNKNOWN     AVERROR(EINVAL)  /**< unknown error */
 #define AVERROR_IO          AVERROR(EIO)     /**< I/O error */
 #define AVERROR_NUMEXPECTED AVERROR(EDOM)    /**< Number syntax expected in filename. */
-- 
1.6.6.1


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