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Add description of printf_size and printf_size_info.

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This commit is contained in:
Ulrich Drepper
1997-04-19 11:22:31 +00:00
parent 307bcd7783
commit 29bb8719cf
3 changed files with 142 additions and 2 deletions
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4
stdio-common/printf_size.c
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@ -96,8 +96,8 @@ printf_size (FILE *fp, const struct printf_info *info, const void *const *args)
/* Units for the both formats. */
static const char units[2][8] =
{
" kmgtps", /* For binary format. */
" KMGTPS" /* For decimal format. */
" kmgtpezy", /* For binary format. */
" KMGTPEZY" /* For decimal format. */
};
const char *tag = units[isupper (info->spec) != 0];
int divisor = isupper (info->spec) ? 1000 : 1024;

66
stdio-common/tst-printfsz.c Normal file
View File

@ -0,0 +1,66 @@
/* Based on code by Larry McVoy <lm@neteng.engr.sgi.com>. */
#include <printf.h>
#include <stdio.h>
#define V 12345678.12345678
int
main (int argc, char *argv[])
{
char buf[1024];
int result = 0;
/* Register the printf handlers. */
register_printf_function ('b', printf_size, printf_size_info);
register_printf_function ('B', printf_size, printf_size_info);
sprintf (buf, "%g %b %B %.0b %.0B %.1b %.1B %8.0b %08.0B",
V, 1025., V, V, V, V, V, V, V, V);
fputs (buf, stdout);
if (strcmp (buf, "\
1.23457e+07 1.001k 12.346M 12m 12M 11.8m 12.3M 12m 0000012M"))
{
result = 1;
fputs (" -> WRONG\n", stdout);
}
else
fputs (" -> OK\n", stdout);
sprintf (buf, "%b|%B|%-20.2b|%-10.0b|%-10.8b|%-10.2B|",
V, V, V, V, V, V, V, V, V, V, V);
fputs (buf, stdout);
if (strcmp (buf, "\
11.774m|12.346M|11.77m |12m |11.77375614m|12.35M |"))
{
result = 1;
fputs (" -> WRONG\n", stdout);
}
else
fputs (" -> OK\n", stdout);
sprintf (buf, "%#.0B %*.0b %10.*b %*.*B %10.2B",
V, 2, V, 2, V, 10, 2, V, V);
fputs (buf, stdout);
if (strcmp (buf, "12.M 12m 11.77m 12.35M 12.35M"))
{
result = 1;
fputs (" -> WRONG\n", stdout);
}
else
fputs (" -> OK\n", stdout);
sprintf (buf, "%6B %6.1B %b %B %b %B",
V, V, 1000.0, 1000.0, 1024.0, 1024.0);
fputs (buf, stdout);
if (strcmp (buf, "12.346M 12.3M 1000.000 1.000K 1.000k 1.024K"))
{
result = 1;
fputs (" -> WRONG\n", stdout);
}
else
fputs (" -> OK\n", stdout);
return result;
}