LDP
/
man-pages
mirror of https://github.com/mkerrisk/man-pages
0
1
Fork 0
Code Releases Activity

memusage.1: EXAMPLES: remove doubled calculations 

The same calculations are repeated in malloc() and printf() calls.
For better readability, do the calculations once.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2020-09-04 09:49:16 +02:00
parent 8d635e0a7e
commit 15fc4aab1f
1 changed files with 10 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
man1/memusage.1
View File

@ -245,10 +245,12 @@ int
main(int argc, char *argv[])
{
int i, j;
size_t size;
int *p;
printf("malloc: %zd\en", sizeof(*p) * 100);
p = malloc(sizeof(*p) * 100);
size = sizeof(*p) * 100;
printf("malloc: %zd\en", size);
p = malloc(size);
for (i = 0; i < CYCLES; i++) {
if (i < CYCLES / 2)
@ -256,11 +258,13 @@ main(int argc, char *argv[])
else
j--;
printf("realloc: %zd\en", sizeof(*p) * (j * 50 + 110));
p = realloc(p, sizeof(*p) * (j * 50 + 100));
size = sizeof(*p) * (j * 50 + 110);
printf("realloc: %zd\en", size);
p = realloc(p, size);
printf("realloc: %zd\en", sizeof(*p) * ((j+1) * 150 + 110));
p = realloc(p, sizeof(*p) * ((j + 1) * 150 + 110));
size = sizeof(*p) * ((j + 1) * 150 + 110);
printf("realloc: %zd\en", size);
p = realloc(p, size);
}
free(p);