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libs/libc/stdio/lib_vsprintf.c and Kconfig:

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- Numbered arguments now work by using two pass parsing and an argument list.
    The maximum number of numbered args is determined by CONFIG_LIBC_NL_ARGMAX
    which is then copied into NL_ARGMAX.
  - Size of pointer argument ('p') is determined before output.

include/limits.h:  Define NL_ARGMAX (as well as some of the other 'invariant
  values' per http://pubs.opengroup.org/onlinepubs/7908799/xsh/limits.h.html)
This commit is contained in:
Johannes
2019-02-21 13:26:33 -06:00
committed by Gregory Nutt
parent 146c398eff
commit 0059a5a88e
3 changed files with 596 additions and 252 deletions
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include/limits.h
+67 -2
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@@ -1,7 +1,7 @@
/********************************************************************************
* include/limits.h
*
* Copyright (C) 2007-2009, 2014 Gregory Nutt. All rights reserved.
* Copyright (C) 2007-2009, 2014, 2019 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@@ -197,7 +197,7 @@
#define _POSIX_SEM_NSEMS_MAX INT_MAX
#define _POSIX_SEM_VALUE_MAX 0x7fff
/* Actual limits. These values may be increased from the POSIX minimum
/* Numerical limits. These values may be increased from the POSIX minimum
* values above or made indeterminate
*/
@@ -230,6 +230,71 @@
#define TIMER_MAX _POSIX_TIMER_MAX
#define CLOCKRES_MIN _POSIX_CLOCKRES_MIN
/* Other invariant values */
/* CHARCLASS_NAME_MAX
* Maximum number of bytes in a character class name. Minimum Acceptable
* Value: 14
*/
#define CHARCLASS_NAME_MAX 14
/* Maximum value of digit in calls to the printf() and scanf() functions.
* Minimum Acceptable Value: 9
*/
#ifdef CONFIG_LIBC_NUMBERED_ARGS
# ifdef CONFIG_LIBC_NL_ARGMAX
# define NL_ARGMAX CONFIG_LIBC_NL_ARGMAX
# else
# define NL_ARGMAX 9
# endif
#endif
/* NL_LANGMAX
* Maximum number of bytes in a LANG name. Minimum Acceptable Value: 14
*/
#define NL_LANGMAX 14
/* NL_MSGMAX
* Maximum message number. Minimum Acceptable Value: 32 67
*/
#define NL_MSGMAX 32767
/* NL_NMAX
* Maximum number of bytes in an N-to-1 collation mapping. Minimum
* Acceptable Value: *
*/
/* NL_SETMAX
* Maximum set number. Minimum Acceptable Value: 255
*/
#define NL_SETMAX 255
/* NL_TEXTMAX
* Maximum number of bytes in a message string. Minimum Acceptable Value:
* _POSIX2_LINE_MAX
*/
#define NL_TEXTMAX _POSIX2_LINE_MAX
/* NZERO
* Default process priority. Minimum Acceptable Value: 20
*/
#define NZERO 20
/* TMP_MAX
* Minimum number of unique pathnames generated by tmpnam(). Maximum
* number of times an application can call tmpnam() reliably. (LEGACY)
* Minimum Acceptable Value: 10000
*/
#define TMP_MAX10000
/* Required for asynchronous I/O */
#define AIO_LISTIO_MAX _POSIX_AIO_LISTIO_MAX