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Doc fixes. Don't #include <stddef.h>. (printf_function): Make last arg ARGS a vector of pointers instead of a pointer to va_list.

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This commit is contained in:
Roland McGrath 1995-03-10 18:31:02 +00:00
parent c21ec3268d
commit ece07193c7
1 changed files with 20 additions and 10 deletions
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26
stdio/printf.h
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@ -28,8 +28,6 @@ __BEGIN_DECLS
#define __need_size_t #define __need_size_t
#include <stddef.h> #include <stddef.h>
#include <stdarg.h> /* Need va_list. */
struct printf_info struct printf_info
{ {
@ -51,24 +49,35 @@ struct printf_info
/* Type of a printf specifier-handler function. /* Type of a printf specifier-handler function.
STREAM is the FILE on which to write output. STREAM is the FILE on which to write output.
INFO gives information about the format specification. INFO gives information about the format specification.
Arguments can be read from ARGS. ARGS is a vector of pointers to the argument data;
the number of pointers will be the number returned
by the associated arginfo function for the same INFO.
The function should return the number of characters written, The function should return the number of characters written,
or -1 for errors. */ or -1 for errors. */
typedef int printf_function __P ((FILE *__stream, typedef int printf_function __P ((FILE *__stream,
__const struct printf_info *__info, __const struct printf_info *__info,
va_list * __args)); __const void **__const __args));
/* Type of a printf specifier-arginfo function.
INFO gives information about the format specification.
N, ARGTYPES, and return value are as for printf_parse_format. */
typedef int printf_arginfo_function __P ((__const struct printf_info * __info, typedef int printf_arginfo_function __P ((__const struct printf_info * __info,
size_t __n, size_t __n,
int *__argtypes)); int *__argtypes));
/* Register FUNC to be called to format SPEC specifiers.
ARGINFO, if not NULL, is a function used by `parse_printf_format' /* Register FUNC to be called to format SPEC specifiers; ARGINFO must be
to determine how many arguments a SPEC conversion requires, specified to determine how many arguments a SPEC conversion requires and
and what their types are. */ what their types are, even if your program never calls
`parse_printf_format'. */
extern int register_printf_function __P ((int __spec, printf_function __func, extern int register_printf_function __P ((int __spec, printf_function __func,
printf_arginfo_function __arginfo)); printf_arginfo_function __arginfo));
/* Parse FMT, and fill in N elements of ARGTYPES with the /* Parse FMT, and fill in N elements of ARGTYPES with the
types needed for the conversions FMT specifies. Returns types needed for the conversions FMT specifies. Returns
the number of arguments required by FMT. the number of arguments required by FMT.
@ -84,6 +93,7 @@ extern size_t parse_printf_format __P ((__const char *__fmt,
size_t __n, size_t __n,
int *__argtypes)); int *__argtypes));
/* Codes returned by `parse_printf_format' for basic types. /* Codes returned by `parse_printf_format' for basic types.
These values cover all the standard format specifications. These values cover all the standard format specifications.