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[PATCH v5 05/11] revision: make get_revision_mark() return const pointer

From
Denton Liu <liu.denton@gmail.com>
Date
Nov 20, 2019, 00:51 UTC
Message-ID
<ac23c4ec4522dd2343b8147b95b2408eddba0678.1574211027.git.liu.denton@gmail.com>
In-Reply-To
<cover.1574211027.git.liu.denton@gmail.com>

get_revision_mark() used to return a `char *`, even though all of the strings it was returning were string literals. Make get_revision_mark() return a `const char *` so that callers won't be tempted to modify the returned string.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 revision.c | 4 ++--
 revision.h | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/revision.c b/revision.c
index 07412297f0..2eb9ff089b 100644
--- a/revision.c
+++ b/revision.c
@@ -3934,7 +3934,7 @@ struct commit *get_revision(struct rev_info *revs)
 	return c;
 }
 
-char *get_revision_mark(const struct rev_info *revs, const struct commit *commit)
+const char *get_revision_mark(const struct rev_info *revs, const struct commit *commit)
 {
 	if (commit->object.flags & BOUNDARY)
 		return "-";
@@ -3956,7 +3956,7 @@ char *get_revision_mark(const struct rev_info *revs, const struct commit *commit
 
 void put_revision_mark(const struct rev_info *revs, const struct commit *commit)
 {
-	char *mark = get_revision_mark(revs, commit);
+	const char *mark = get_revision_mark(revs, commit);
 	if (!strlen(mark))
 		return;
 	fputs(mark, stdout);
diff --git a/revision.h b/revision.h
index 4134dc6029..addd69410b 100644
--- a/revision.h
+++ b/revision.h
@@ -322,8 +322,8 @@ int handle_revision_arg(const char *arg, struct rev_info *revs,
 void reset_revision_walk(void);
 int prepare_revision_walk(struct rev_info *revs);
 struct commit *get_revision(struct rev_info *revs);
-char *get_revision_mark(const struct rev_info *revs,
-			const struct commit *commit);
+const char *get_revision_mark(const struct rev_info *revs,
+			      const struct commit *commit);
 void put_revision_mark(const struct rev_info *revs,
 		       const struct commit *commit);
 
-- 
2.24.0.420.g9ac4901264
Previous: Denton LiuNext: Denton Liu
Message 74 of 81 in “learn the "summary" pretty format”
  1. 0/8 learn the "summary" pretty formatDenton Liu, Nov 4, 2019
  2. 1/8 pretty-formats.txt: use generic terms for hashDenton Liu, Nov 4, 2019
  3. 2/8 revision: make get_revision_mark() return const pointerDenton Liu, Nov 4, 2019
  4. 3/8 revision: change abbrev_commit_given to abbrev_commit_explicitDenton Liu, Nov 4, 2019
  5. 4/8 pretty.c: inline initalize format_contextDenton Liu, Nov 4, 2019
  6. 5/8 pretty.c: extract functionality to repo_format_commit_generic()Denton Liu, Nov 4, 2019
  7. 6/8 reflog-walk.c: don't print last newline with onelineDenton Liu, Nov 4, 2019
  8. Junio C HamanoNov 6, 2019
  9. Denton LiuNov 8, 2019
  10. 7/8 pretty: implement 'summary' formatDenton Liu, Nov 4, 2019
  11. Eric SunshineNov 4, 2019
  12. Denton LiuNov 4, 2019
  13. Eric SunshineNov 4, 2019
  14. Denton LiuNov 4, 2019
  15. 8/8 SubmittingPatches: use `--pretty=summary`Denton Liu, Nov 4, 2019
  16. 00/10 learn the "summary" pretty formatDenton Liu, Nov 8, 2019
  17. 01/10 SubmittingPatches: use generic terms for hashDenton Liu, Nov 8, 2019
  18. 02/10 pretty-formats.txt: use generic terms for hashDenton Liu, Nov 8, 2019
  19. 03/10 revision: make get_revision_mark() return const pointerDenton Liu, Nov 8, 2019
  20. 04/10 revision: change abbrev_commit_given to abbrev_commit_explicitDenton Liu, Nov 8, 2019
  21. 06/10 pretty.c: extract functionality to repo_format_commit_generic()Denton Liu, Nov 8, 2019
  22. 05/10 pretty.c: inline initalize format_contextDenton Liu, Nov 8, 2019
  23. 07/10 t4205: cover `git log --reflog -z` blindspotDenton Liu, Nov 8, 2019
  24. Eric SunshineNov 8, 2019
  25. Denton LiuNov 8, 2019
  26. Eric SunshineNov 8, 2019
  27. 08/10 reflog-walk.c: move where the newline is addedDenton Liu, Nov 8, 2019
  28. 09/10 pretty: implement 'summary' formatDenton Liu, Nov 8, 2019
  29. Eric SunshineNov 8, 2019
  30. René ScharfeNov 9, 2019
  31. Junio C HamanoNov 10, 2019
  32. Denton LiuNov 11, 2019
  33. SZEDER GáborNov 14, 2019
  34. Junio C HamanoNov 14, 2019
  35. René ScharfeNov 9, 2019
  36. SZEDER GáborNov 14, 2019
  37. 10/10 SubmittingPatches: use `--pretty=summary`Denton Liu, Nov 8, 2019
  38. 00/10 learn the "reference" pretty formatDenton Liu, Nov 14, 2019
  39. 01/10 SubmittingPatches: use generic terms for hashDenton Liu, Nov 14, 2019
  40. 02/10 pretty-formats.txt: use generic terms for hashDenton Liu, Nov 14, 2019
  41. 03/10 SubmittingPatches: remove dq from commit referenceDenton Liu, Nov 14, 2019
  42. 04/10 completion: complete `tformat:` pretty formatDenton Liu, Nov 14, 2019
  43. 05/10 revision: make get_revision_mark() return const pointerDenton Liu, Nov 14, 2019
  44. 06/10 pretty.c: inline initalize format_contextDenton Liu, Nov 14, 2019
  45. 07/10 t4205: cover `git log --reflog -z` blindspotDenton Liu, Nov 14, 2019
  46. 08/10 pretty: provide short date formatDenton Liu, Nov 14, 2019
  47. 10/10 SubmittingPatches: use `--pretty=reference`Denton Liu, Nov 14, 2019
  48. 09/10 pretty: implement 'reference' formatDenton Liu, Nov 14, 2019
  49. Todd ZullingerNov 15, 2019
  50. Junio C HamanoNov 15, 2019
  51. SZEDER GáborNov 15, 2019
  52. Junio C HamanoNov 16, 2019
  53. Junio C HamanoNov 18, 2019
  54. Junio C HamanoNov 18, 2019
  55. Eric SunshineNov 15, 2019
  56. 00/11 learn the "reference" pretty formatDenton Liu, Nov 19, 2019
  57. 01/11 SubmittingPatches: use generic terms for hashDenton Liu, Nov 19, 2019
  58. 02/11 pretty-formats.txt: use generic terms for hashDenton Liu, Nov 19, 2019
  59. 03/11 SubmittingPatches: remove dq from commit referenceDenton Liu, Nov 19, 2019
  60. 04/11 completion: complete `tformat:` pretty formatDenton Liu, Nov 19, 2019
  61. 05/11 revision: make get_revision_mark() return const pointerDenton Liu, Nov 19, 2019
  62. 06/11 pretty.c: inline initalize format_contextDenton Liu, Nov 19, 2019
  63. 07/11 t4205: cover `git log --reflog -z` blindspotDenton Liu, Nov 19, 2019
  64. 08/11 pretty: provide short date formatDenton Liu, Nov 19, 2019
  65. 09/11 pretty: implement 'reference' formatDenton Liu, Nov 19, 2019
  66. 10/11 SubmittingPatches: use `--pretty=reference`Denton Liu, Nov 19, 2019
  67. 11/11 squash! pretty: implement 'reference' formatDenton Liu, Nov 19, 2019
  68. Junio C HamanoNov 19, 2019
  69. 00/11 learn the "reference" pretty formatDenton Liu, Nov 20, 2019
  70. 01/11 SubmittingPatches: use generic terms for hashDenton Liu, Nov 20, 2019
  71. 02/11 pretty-formats.txt: use generic terms for hashDenton Liu, Nov 20, 2019
  72. 03/11 SubmittingPatches: remove dq from commit referenceDenton Liu, Nov 20, 2019
  73. 04/11 completion: complete `tformat:` pretty formatDenton Liu, Nov 20, 2019
  74. 05/11 revision: make get_revision_mark() return const pointerDenton Liu, Nov 20, 2019
  75. 06/11 pretty.c: inline initalize format_contextDenton Liu, Nov 20, 2019
  76. 07/11 t4205: cover `git log --reflog -z` blindspotDenton Liu, Nov 20, 2019
  77. 08/11 pretty: provide short date formatDenton Liu, Nov 20, 2019
  78. 09/11 pretty: add struct cmt_fmt_map::default_date_mode_typeDenton Liu, Nov 20, 2019
  79. Junio C HamanoNov 20, 2019
  80. 10/11 pretty: implement 'reference' formatDenton Liu, Nov 20, 2019
  81. 11/11 SubmittingPatches: use `--pretty=reference`Denton Liu, Nov 20, 2019

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