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janitor: add DIV_ROUND_UP and use it.

Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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1 parent f630cfd commit 98cb6f30f708ef416572bf65bd26ac9f998ae0dc Pierre Habouzit committed with gitster Jul 22, 2009
Showing with 4 additions and 2 deletions.
  1. +2 −0 git-compat-util.h
  2. +1 −1 help.c
  3. +1 −1 preload-index.c
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2 git-compat-util.h
@@ -37,6 +37,8 @@
#define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (bitsizeof(x) - (bits))))
#define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */
+#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
+
/* Approximation of the length of the decimal representation of this type. */
#define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1)
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2 help.c
@@ -100,7 +100,7 @@ static void pretty_print_string_list(struct cmdnames *cmds, int longest)
if (space < max_cols)
cols = max_cols / space;
- rows = (cmds->cnt + cols - 1) / cols;
+ rows = DIV_ROUND_UP(cmds->cnt, cols);
for (i = 0; i < rows; i++) {
printf(" ");
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2 preload-index.c
@@ -76,7 +76,7 @@ static void preload_index(struct index_state *index, const char **pathspec)
if (threads > MAX_PARALLEL)
threads = MAX_PARALLEL;
offset = 0;
- work = (index->cache_nr + threads - 1) / threads;
+ work = DIV_ROUND_UP(index->cache_nr, threads);
for (i = 0; i < threads; i++) {
struct thread_data *p = data+i;
p->index = index;

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