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135 lines
3.2 KiB
C
135 lines
3.2 KiB
C
/* Test for the long double variants of *scanf functions.
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Copyright (C) 2019-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <wchar.h>
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#include <support/check.h>
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#define CLEAR_VARGS \
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va_start (args, format); \
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ldptr = va_arg (args, long double *); \
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fptr = va_arg (args, float *); \
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*ldptr = 0; \
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*fptr = 0; \
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va_end (args);
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#define CHECK_VARGS \
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va_start (args, format); \
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ldptr = va_arg (args, long double *); \
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fptr = va_arg (args, float *); \
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va_end (args); \
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if (*ldptr == -1 && *fptr == -2) \
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printf ("OK"); \
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else \
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printf ("ERROR (%Lf %f)", *ldptr, *fptr); \
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printf ("\n");
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#define CLEAR_VALUE \
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ld = 0; \
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f = 0;
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#define CHECK_VALUE \
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if (ld == -1 && f == -2) \
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printf ("OK"); \
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else \
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printf ("ERROR (%Lf %f)", ld, f); \
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printf ("\n");
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static void
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do_test_call (FILE *stream, CHAR *string, const CHAR *format, ...)
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{
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float f;
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long double ld;
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float *fptr;
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long double *ldptr;
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va_list args;
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CLEAR_VALUE
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printf ("fscanf: ");
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FSCANF (stream, format, &ld, &f);
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CHECK_VALUE
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CLEAR_VALUE
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printf ("scanf: ");
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SCANF (format, &ld, &f);
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CHECK_VALUE
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CLEAR_VALUE
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printf ("sscanf: ");
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SSCANF (string, format, &ld, &f);
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CHECK_VALUE
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CLEAR_VARGS
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printf ("vfscanf: ");
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va_start (args, format);
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VFSCANF (stream, format, args);
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va_end (args);
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CHECK_VARGS
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CLEAR_VARGS
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printf ("vscanf: ");
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va_start (args, format);
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VSCANF (format, args);
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va_end (args);
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CHECK_VARGS
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CLEAR_VARGS
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printf ("vsscanf: ");
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va_start (args, format);
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VSSCANF (string, format, args);
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va_end (args);
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CHECK_VARGS
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}
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static int
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do_test (void)
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{
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CHAR string[256];
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float f;
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long double ld;
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/* Scan in decimal notation. */
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STRCPY (string,
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L ("-1.0 -2.0\n")
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L ("-1.0 -2.0\n") );
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do_test_call (stdin, string, L("%Lf %f"), &ld, &f);
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/* Scan in hexadecimal notation. */
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STRCPY (string,
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L ("-0x1.0p+0 -0x2.0p+0\n")
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L ("-0x1.0p+0 -0x2.0p+0\n") );
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/* For ISO C99, scan the single-precision value with "%as" to test
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that __isoc99_*scanf ignores the 's'. For DEPRECATED_SCANF, do not
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use "%as", because that would try to scan a string and allocate
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space for it. */
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#if __GLIBC_USE (DEPRECATED_SCANF)
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# define FMT "%La %a"
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#else
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# define FMT "%La %as"
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#endif
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do_test_call (stdin, string, L(FMT), &ld, &f);
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return 0;
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}
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#include <support/test-driver.c>
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