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glibc/stdio-common/tst-scanf-format-skeleton.h
Maciej W. Rozycki d1a621b735 stdio-common: Add tests for formatted scanf input specifiers
Add a collection of tests for formatted scanf input specifiers covering
the b, d, i, o, u, x, and X integer conversions, the a, A, e, E, f, F,
g, and G floating-point conversions, and the [, c, and s character
conversions.  Also the hh, h, l, and ll length modifiers are covered
with the integer conversions as are the l and L length modifier with the
floating-point conversions.  The tests cover assignment suppressing and
the field width as well, verifying the number of assignments made, the
number of characters consumed and the value assigned.

Add the common test code here as well as test cases for scanf, and then
base Makefile infrastructure plus target-agnostic input data, for the
character conversions and the `char', `short', and `long long' integer
ones, signed and unsigned, with remaining input data and other functions
from the scanf family deferred to subsequent additions.

Keep input data disabled and referring to BZ #12701 for entries that are
currently incorrectly accepted as valid data, such as '0b' or '0x' with
the relevant integer conversions or sequences of an insufficient number
of characters with the c conversion.

Reviewed-by: Joseph Myers <josmyers@redhat.com>
2025-03-25 09:40:20 +00:00

41 lines
1.5 KiB
C

/* Test skeleton declarations for formatted scanf input.
Copyright (C) 2025 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <stddef.h>
/* Amount dynamic memory allocations are increased by. */
#define SIZE_CHUNK 32
/* Error codes for use by the tests. */
enum
{
INPUT_EOF = -1, /* Premature end of input. */
INPUT_ERROR = -2, /* System error reading input data. */
INPUT_FORMAT = -3, /* Input data format error. */
INPUT_OVERFLOW = -4, /* Input data arithmetic overflow. */
OUTPUT_TERM = -5, /* String termination missing from output. */
OUTPUT_OVERRUN = -6 /* Output data overrun. */
};
/* Input data retrieval handlers made available to individual tests. */
static long long read_integer (int *);
static int read_input (void);
/* Input data line number tracker. */
static size_t line;