[PATCH v3 07/13] add range clone functions
From: Bo Yang <hidden>
Date: 2016-06-15 22:49:07
Subsystem:
the rest · Maintainer:
Linus Torvalds
Both single range clone and deeply clone are supported. Signed-off-by: Bo Yang <redacted> --- line.c | 39 +++++++++++++++++++++++++++++++++++++++ line.h | 4 ++++ 2 files changed, 43 insertions(+), 0 deletions(-)
diff --git a/line.c b/line.c
index a6bcbdf..ba96d7d 100644
--- a/line.c
+++ b/line.c@@ -378,6 +378,45 @@ void diff_line_range_append(struct diff_line_range *r, const char *arg) r->ranges[r->nr - 1].arg = arg; } +struct diff_line_range *diff_line_range_clone(struct diff_line_range *r) +{ + struct diff_line_range *ret = xmalloc(sizeof(*ret)); + int i = 0; + + DIFF_LINE_RANGE_INIT(ret); + ret->ranges = xcalloc(r->nr, sizeof(struct range)); + memcpy(ret->ranges, r->ranges, sizeof(struct range) * r->nr); + + ret->alloc = ret->nr = r->nr; + + for (; i < ret->nr; i++) + PRINT_PAIR_INIT(&ret->ranges[i].pair); + + ret->spec = r->spec; + assert(ret->spec); + ret->spec->count++; + + return ret; +} + +struct diff_line_range *diff_line_range_clone_deeply(struct diff_line_range *r) +{ + struct diff_line_range *ret = NULL; + struct diff_line_range *tmp = NULL, *prev = NULL; + + assert(r); + ret = tmp = prev = diff_line_range_clone(r); + r = r->next; + while (r) { + tmp = diff_line_range_clone(r); + prev->next = tmp; + prev = tmp; + r = r->next; + } + + return ret; +} + struct diff_line_range *diff_line_range_merge(struct diff_line_range *out, struct diff_line_range *other) {
diff --git a/line.h b/line.h
index 0eb03bd..885e985 100644
--- a/line.h
+++ b/line.h@@ -112,6 +112,10 @@ extern void diff_line_range_append(struct diff_line_range *r, const char *arg); extern void diff_line_range_clear(struct diff_line_range *r); +extern struct diff_line_range *diff_line_range_clone(struct diff_line_range *r); + +extern struct diff_line_range *diff_line_range_clone_deeply(struct diff_line_range *r); + extern struct diff_line_range *diff_line_range_merge(struct diff_line_range *out, struct diff_line_range *other);
--
1.7.0.2.273.gc2413.dirty