27.istream.readsome.cpp File Reference

#include <istream>
#include <sstream>
#include <rw_driver.h>
#include <rw_char.h>
#include <rw_printf.h>

Include dependency graph for 27.istream.readsome.cpp:

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Data Structures
struct	Streambuf< charT, Traits >

Macros
#define	TEST(CharT, Traits)    test_readsome ((CharT*)0, (Traits*)0, #CharT, #Traits)

Functions
void	memfun_info (int line, const char *cname, const char *tname)
template<class charT , class Traits >
void	test_readsome (const charT *cbuf, const Traits *, unsigned cbuf_size, unsigned i, unsigned j, unsigned k, int l, unsigned m)
template<class charT , class Traits >
void	test_readsome (const charT *, const Traits *, const char *cname, const char *tname)
int	main (int argc, char *argv[])

Variables
const std::ios_base::iostate	states []
const unsigned	nstates = sizeof states / sizeof *states

Macro Definition Documentation

TEST

#define TEST	(		CharT,
			Traits
	)		test_readsome ((CharT*)0, (Traits*)0, #CharT, #Traits)

Function Documentation

main()

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 461 of file 27.istream.readsome.cpp.

memfun_info()

void memfun_info	(	int	line,
		const char *	cname,
		const char *	tname
	)

27.6.1.3, p30 and 31

streamsize readsome (char_type* s, streamsize n);

-30- Effects: If !good() calls setstate(failbit) which may throw an exception, and return. Otherwise extracts characters and stores them into successive locations of an array whose first element is designated by s. – If rdbuf()­>in_avail() == ­1, calls setstate(eofbit) (which may throw ios_base::failure (27.4.4.3)), and extracts no characters; – If rdbuf()­>in_avail() == 0, extracts no characters – If rdbuf()­>in_avail() > 0, extracts min(rdbuf()­>in_avail(), n)). -31- Returns: The number of characters extracted.

Definition at line 137 of file 27.istream.readsome.cpp.

test_readsome() [1/2]

template<class charT , class Traits >

void test_readsome	(	const charT *	,
		const Traits *	,
		const char *	cname,
		const char *	tname
	)

Definition at line 367 of file 27.istream.readsome.cpp.

test_readsome() [2/2]

template<class charT , class Traits >

void test_readsome	(	const charT *	cbuf,
		const Traits *	,
		unsigned	cbuf_size,
		unsigned	i,
		unsigned	j,
		unsigned	k,
		int	l,
		unsigned	m
	)

Definition at line 171 of file 27.istream.readsome.cpp.

Variable Documentation

nstates

const unsigned nstates = sizeof states / sizeof *states

extern

states

const std::ios_base::iostate states[]

extern

Initial value:

= {
    std::ios_base::badbit,
    std::ios_base::eofbit,
    std::ios_base::failbit,
    std::ios_base::goodbit,
    std::ios_base::badbit | std::ios_base::eofbit,
    std::ios_base::badbit | std::ios_base::failbit,
    std::ios_base::eofbit | std::ios_base::failbit,
    std::ios_base::badbit | std::ios_base::eofbit | std::ios_base::failbit
}