commit 2f26640c77e9b4d1a303b6c3c7776ff75ad51111
from: Stefan Sperling <stsp@stsp.name>
date: Sat Oct 17 00:26:51 2020 UTC

revert db941c24; callers would also need private structs for that idea to work

commit - 66ea8e5adfb496de581ba4b78479f3258692ee9e
commit + 2f26640c77e9b4d1a303b6c3c7776ff75ad51111
blob - 788ee7f70a4767c36639c50287ba611f2f917dda
blob + eb5ea9058a20bee4cbe0ab59e51b057ac8067878
--- include/diff_output.h
+++ include/diff_output.h
@@ -61,12 +61,6 @@ int diff_chunk_get_right_end(const struct diff_chunk *
 void diff_chunk_context_get(struct diff_chunk_context *cc,
 				 const struct diff_result *r,
 				 int chunk_idx, int context_lines);
-int diff_chunk_context_empty(const struct diff_chunk_context *cc);
-int diff_chunk_contexts_touch(const struct diff_chunk_context *cc,
-			      const struct diff_chunk_context *other);
-void diff_chunk_contexts_merge(struct diff_chunk_context *cc,
-			       const struct diff_chunk_context *other);
-
 struct diff_output_unidiff_state;
 struct diff_output_unidiff_state *diff_output_unidiff_state_alloc(void);
 void diff_output_unidiff_state_reset(struct diff_output_unidiff_state *state);
blob - 1895fddf12374a72d9b814e673fe12a6e3737678
blob + f48c869ab05318ba318a42e11631e120cedb7cb6
--- lib/diff_internal.h
+++ lib/diff_internal.h
@@ -178,6 +178,19 @@ diff_chunk_type(const struct diff_chunk *chunk)
 	return CHUNK_SAME;
 }
 
+struct diff_chunk_context;
+
+bool
+diff_chunk_context_empty(const struct diff_chunk_context *cc);
+
+bool
+diff_chunk_contexts_touch(const struct diff_chunk_context *cc,
+			  const struct diff_chunk_context *other);
+
+void
+diff_chunk_contexts_merge(struct diff_chunk_context *cc,
+			  const struct diff_chunk_context *other);
+
 struct diff_state {
 	/* The final result passed to the original diff caller. */
 	struct diff_result *result;
blob - f9307b1fc9fb1776eb3f64b4bf48067896283ca3
blob + 92805f9927a54bfd10e75d1fa3b36915ff80bd93
--- lib/diff_output_unidiff.c
+++ lib/diff_output_unidiff.c
@@ -28,7 +28,7 @@
 #include "diff_internal.h"
 #include "diff_debug.h"
 
-int
+bool
 diff_chunk_context_empty(const struct diff_chunk_context *cc)
 {
 	return diff_range_empty(&cc->chunk);
@@ -94,7 +94,7 @@ diff_chunk_context_get(struct diff_chunk_context *cc, 
 	};
 }
 
-int
+bool
 diff_chunk_contexts_touch(const struct diff_chunk_context *cc,
 			  const struct diff_chunk_context *other)
 {