Datasets:
shibing624
/
source_code

Dataset card Data Studio Files Community
2
text
stringlengths
0
2.2M
Obj mSB(buffer1, INIT_BUFSIZE);
const Obj& SB = mSB;
ASSERT(buffer1 == SB.data());
ASSERT(INIT_BUFSIZE == SB.capacity());
ASSERT(0 == SB.length());
mSB.sputc('a');
ASSERT(1 == SB.length());
mSB.pubsetbuf(buffer2, INIT_BUFSIZE/2);
ASSERT(buffer2 == SB.data());
ASSERT(INIT_BUFSIZE/2 == SB.capacity());
ASSERT(0 == SB.length());
}
if (verbose) cout << "\nNegative Testing." << endl;
{
char buffer[INIT_BUFSIZE];
Obj mSB(buffer, INIT_BUFSIZE);
bsls::AssertTestHandlerGuard hG;
ASSERT_SAFE_FAIL(mSB.pubsetbuf( 0, INIT_BUFSIZE));
ASSERT_SAFE_FAIL(mSB.pubsetbuf( 0, -1));
ASSERT_SAFE_FAIL(mSB.pubsetbuf(buffer, -1));
ASSERT_SAFE_PASS(mSB.pubsetbuf( 0, 0));
ASSERT_SAFE_PASS(mSB.pubsetbuf(buffer, 0));
ASSERT_SAFE_PASS(mSB.pubsetbuf(buffer, INIT_BUFSIZE));
}
} break;
case 6: {
// --------------------------------------------------------------------
// TESTING 'seek' METHODS
// As the only action performed in 'pubseekpos' is the call for
// 'pubseekoff' with predetermined second parameter, then we can test
// 'pubseekpos' superficially.
//
// Concerns:
//: 1 Seeking is correct for:
//: - all relative positions.
//: - positive, 0, and negative values.
//: - out of buffer boundaries.
//:
//: 2 Seeking into the "get" area has no effect.
//:
//: 3 'pubseekpos' calls 'pubseekoff' with correctly predetermined
//: second parameter (bsl::ios_base::beg)
//
// Plan:
//: 1 Perform a variety of seeks, using representative test vectors
//: from the cross-product of offset categories beginning-pointer,
//: current-pointer and end-pointer, with direction categories
//: negative-forcing-past-beginning, negative-falling-within-bounds,
//: 0, positive-falling-within bounds, and positive-forcing-past-end.
//: (C-1..2)
//:
//: 2 Perform several seeks with different initial states of the
//: tested object. (C-3)
//
// Testing:
// pos_type pubseekoff(off_type, seekdir, openmode);
// pos_type pubseekpos(pos_type, openmode);
// --------------------------------------------------------------------
if (verbose) cout << endl
<< "TESTING 'seek' METHODS" << endl
<< "======================" << endl;
const io_openmode PUT = bsl::ios_base::out;
const io_openmode GET = bsl::ios_base::in;
const io_seekdir CUR = bsl::ios_base::cur;
const io_seekdir BEG = bsl::ios_base::beg;
const io_seekdir END = bsl::ios_base::end;
char mFILL[INIT_BUFSIZE];
memset(mFILL, 'a', sizeof mFILL);
if (verbose) cout << "\nTesting seekoff with no buffer." << endl;
{
Obj mSB(0, 0);
Obj::pos_type ret;
ret = mSB.pubseekoff(1, BEG, PUT);
ASSERT(-1 == ret);
}
if (verbose) cout << "\nTesting seekoff from beginning and end."
<< endl;
{
static const struct {
int d_line; // line number
io_openmode d_areaFlags; // "put"/"get" area flag
Obj::off_type d_amount; // seek offset
io_seekdir d_base; // relative position
int d_retVal; // expected return from seekoff
} DATA[] = {
//LINE AREA OFFSET POS RETVAL
//---- ---- --------------------- ---- -------------------
// seekoff from the start of the streambuf
{ L_, PUT, 0, BEG, 0 },