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path: root/pkg/util-linux/patch/0005-Avoid-statement-expressions-min-max.patch
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From 2b467498acfe9f1de27503a7ce94307755a997f5 Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Tue, 12 Mar 2019 17:13:45 -0700
Subject: [PATCH] Avoid statement expressions min/max

---
 include/c.h                  | 24 ++++++++++--------------
 lib/mbsalign.c               |  2 +-
 libfdisk/src/alignment.c     |  8 ++++----
 libfdisk/src/context.c       |  2 +-
 libfdisk/src/gpt.c           |  4 ++--
 libsmartcols/src/calculate.c |  8 ++++----
 libsmartcols/src/column.c    |  2 +-
 7 files changed, 23 insertions(+), 27 deletions(-)

diff --git a/include/c.h b/include/c.h
index 7f3a8b173..7201b18af 100644
--- a/include/c.h
+++ b/include/c.h
@@ -126,21 +126,17 @@
 # define FALSE 0
 #endif
 
-#ifndef min
-# define min(x, y) __extension__ ({		\
-	__typeof__(x) _min1 = (x);		\
-	__typeof__(y) _min2 = (y);		\
-	(void) (&_min1 == &_min2);		\
-	_min1 < _min2 ? _min1 : _min2; })
-#endif
+static inline uintmax_t
+umax(uintmax_t x, uintmax_t y)
+{
+	return x > y ? x : y;
+}
 
-#ifndef max
-# define max(x, y) __extension__ ({		\
-	__typeof__(x) _max1 = (x);		\
-	__typeof__(y) _max2 = (y);		\
-	(void) (&_max1 == &_max2);		\
-	_max1 > _max2 ? _max1 : _max2; })
-#endif
+static inline uintmax_t
+umin(uintmax_t x, uintmax_t y)
+{
+	return x < y ? x : y;
+}
 
 #ifndef cmp_numbers
 # define cmp_numbers(x, y) __extension__ ({	\
diff --git a/lib/mbsalign.c b/lib/mbsalign.c
index 8fdab9ee9..bb31e7583 100644
--- a/lib/mbsalign.c
+++ b/lib/mbsalign.c
@@ -563,7 +563,7 @@ mbsalign_unibyte:
 
       dest = mbs_align_pad (dest, dest_end, start_spaces, padchar);
       space_left = dest_end - dest;
-      dest = mempcpy (dest, str_to_print, min (n_used_bytes, space_left));
+      dest = mempcpy (dest, str_to_print, umin (n_used_bytes, space_left));
       mbs_align_pad (dest, dest_end, end_spaces, padchar);
     }
 #ifdef HAVE_WIDECHAR
diff --git a/libfdisk/src/alignment.c b/libfdisk/src/alignment.c
index 4ae5ff08f..931ec8b9a 100644
--- a/libfdisk/src/alignment.c
+++ b/libfdisk/src/alignment.c
@@ -38,7 +38,7 @@
  */
 static int lba_is_aligned(struct fdisk_context *cxt, uintmax_t lba)
 {
-	unsigned long granularity = max(cxt->phy_sector_size, cxt->min_io_size);
+	unsigned long granularity = umax(cxt->phy_sector_size, cxt->min_io_size);
 	uintmax_t offset;
 
 	if (cxt->grain > granularity)
@@ -54,7 +54,7 @@ static int lba_is_aligned(struct fdisk_context *cxt, uintmax_t lba)
  */
 static int lba_is_phy_aligned(struct fdisk_context *cxt, fdisk_sector_t lba)
 {
-	unsigned long granularity = max(cxt->phy_sector_size, cxt->min_io_size);
+	unsigned long granularity = umax(cxt->phy_sector_size, cxt->min_io_size);
 	uintmax_t offset = (lba * cxt->sector_size) % granularity;
 
 	return !((granularity + cxt->alignment_offset - offset) % granularity);
@@ -103,7 +103,7 @@ fdisk_sector_t fdisk_align_lba(struct fdisk_context *cxt, fdisk_sector_t lba, in
 			 * according the offset to be on the physical boundary.
 			 */
 			/* fprintf(stderr, "LBA: %llu apply alignment_offset\n", res); */
-			res -= (max(cxt->phy_sector_size, cxt->min_io_size) -
+			res -= (umax(cxt->phy_sector_size, cxt->min_io_size) -
 					cxt->alignment_offset) / cxt->sector_size;
 
 			if (direction == FDISK_ALIGN_UP && res < lba)
@@ -396,7 +396,7 @@ int fdisk_apply_user_device_properties(struct fdisk_context *cxt)
 	fdisk_reset_alignment(cxt);
 
 	if (cxt->user_grain) {
-		unsigned long granularity = max(cxt->phy_sector_size, cxt->min_io_size);
+		unsigned long granularity = umax(cxt->phy_sector_size, cxt->min_io_size);
 
 		cxt->grain = cxt->user_grain < granularity ? granularity : cxt->user_grain;
 		DBG(CXT, ul_debugobj(cxt, "new grain: %lu", cxt->grain));
diff --git a/libfdisk/src/context.c b/libfdisk/src/context.c
index 743a6bc1d..0434840ab 100644
--- a/libfdisk/src/context.c
+++ b/libfdisk/src/context.c
@@ -890,7 +890,7 @@ int fdisk_reread_changes(struct fdisk_context *cxt, struct fdisk_table *org)
 	/* the current layout */
 	fdisk_get_partitions(cxt, &tb);
 	/* maximal number of partitions */
-	nparts = max(fdisk_table_get_nents(tb), fdisk_table_get_nents(org));
+	nparts = umax(fdisk_table_get_nents(tb), fdisk_table_get_nents(org));
 
 	while (fdisk_diff_tables(org, tb, &itr, &pa, &change) == 0) {
 		if (change == FDISK_DIFF_UNCHANGED)
diff --git a/libfdisk/src/gpt.c b/libfdisk/src/gpt.c
index a2a346faa..54984bf32 100644
--- a/libfdisk/src/gpt.c
+++ b/libfdisk/src/gpt.c
@@ -421,7 +421,7 @@ static int gpt_mknew_pmbr(struct fdisk_context *cxt)
 	pmbr->partition_record[0].end_track    = 0xFF;
 	pmbr->partition_record[0].starting_lba = cpu_to_le32(1);
 	pmbr->partition_record[0].size_in_lba  =
-		cpu_to_le32((uint32_t) min( cxt->total_sectors - 1ULL, 0xFFFFFFFFULL) );
+		cpu_to_le32((uint32_t) umin(cxt->total_sectors - 1ULL, 0xFFFFFFFFULL));
 
 	return 0;
 }
@@ -770,7 +770,7 @@ static int valid_pmbr(struct fdisk_context *cxt)
 			/* Note that gpt_write_pmbr() overwrites PMBR, but we want to keep it valid already
 			 * in memory too to disable warnings when valid_pmbr() called next time */
 			pmbr->partition_record[part].size_in_lba  =
-				cpu_to_le32((uint32_t) min( cxt->total_sectors - 1ULL, 0xFFFFFFFFULL) );
+				cpu_to_le32((uint32_t) umin(cxt->total_sectors - 1ULL, 0xFFFFFFFFULL));
 			fdisk_label_set_changed(cxt->label, 1);
 		}
 	}
diff --git a/libsmartcols/src/calculate.c b/libsmartcols/src/calculate.c
index a0c0dc4b9..ad48f619c 100644
--- a/libsmartcols/src/calculate.c
+++ b/libsmartcols/src/calculate.c
@@ -55,7 +55,7 @@ static int count_cell_width(struct libscols_table *tb,
 
 	if (len == (size_t) -1)		/* ignore broken multibyte strings */
 		len = 0;
-	cl->width_max = max(len, cl->width_max);
+	cl->width_max = umax(len, cl->width_max);
 
 	if (cl->is_extreme && cl->width_avg && len > cl->width_avg * 2)
 		return 0;
@@ -64,10 +64,10 @@ static int count_cell_width(struct libscols_table *tb,
 		cl->extreme_sum += len;
 		cl->extreme_count++;
 	}
-	cl->width = max(len, cl->width);
+	cl->width = umax(len, cl->width);
 	if (scols_column_is_tree(cl)) {
 		size_t treewidth = buffer_get_safe_art_size(buf);
-		cl->width_treeart = max(cl->width_treeart, treewidth);
+		cl->width_treeart = umax(cl->width_treeart, treewidth);
 	}
 	return 0;
 }
@@ -108,7 +108,7 @@ static int count_column_width(struct libscols_table *tb,
 		}
 		if (scols_cell_get_data(&cl->header)) {
 			size_t len = mbs_safe_width(scols_cell_get_data(&cl->header));
-			cl->width_min = max(cl->width_min, len);
+			cl->width_min = umax(cl->width_min, len);
 		} else
 			no_header = 1;
 
diff --git a/libsmartcols/src/column.c b/libsmartcols/src/column.c
index 4b42938f6..81fe76000 100644
--- a/libsmartcols/src/column.c
+++ b/libsmartcols/src/column.c
@@ -343,7 +343,7 @@ size_t scols_wrapnl_chunksize(const struct libscols_column *cl __attribute__((un
 		} else
 			sz = mbs_safe_width(data);
 
-		sum = max(sum, sz);
+		sum = umax(sum, sz);
 		data = p;
 	}
 
-- 
2.25.0