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| author | Joseph Myers <joseph@codesourcery.com> | 2023-06-19 18:52:12 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2023-06-19 18:52:12 +0000 |
| commit | 5f83b2674e42cd74257731b281f66d0442bf045f (patch) | |
| tree | cb4d3f19d481d718c4800218f20afc93441199e3 /wcsmbs | |
| parent | 8022fc7d5119a22e9e0ac72798f649385b0e167a (diff) | |
| download | glibc-5f83b2674e42cd74257731b281f66d0442bf045f.tar.gz glibc-5f83b2674e42cd74257731b281f66d0442bf045f.tar.xz glibc-5f83b2674e42cd74257731b281f66d0442bf045f.zip | |
C2x printf %wN, %wfN support (bug 24466)
ISO C2x defines printf length modifiers wN (for intN_t / int_leastN_t / uintN_t / uint_leastN_t) and wfN (for int_fastN_t / uint_fastN_t). Add support for those length modifiers (such a feature was previously requested in bug 24466). scanf support is to be added separately. GCC 13 has format checking support for these modifiers. When used with the support for registering format specifiers, these modifiers are translated to existing flags in struct printf_info, rather than trying to add some way of distinguishing them without breaking the printf_info ABI. C2x requires an error to be returned for unsupported values of N; this is implemented for printf-family functions, but the parse_printf_format interface doesn't support error returns, so such an error gets discarded by that function. Tested for x86_64 and x86.
Diffstat (limited to 'wcsmbs')
| -rw-r--r-- | wcsmbs/Makefile | 1 | ||||
| -rw-r--r-- | wcsmbs/tst-wprintf-intn.c | 26 |
2 files changed, 27 insertions, 0 deletions
diff --git a/wcsmbs/Makefile b/wcsmbs/Makefile index d8512c8801..22192985e1 100644 --- a/wcsmbs/Makefile +++ b/wcsmbs/Makefile @@ -170,6 +170,7 @@ tests := \ tst-wcstol-binary-gnu2x \ tst-wcstol-locale \ tst-wprintf-binary \ + tst-wprintf-intn \ tst-wscanf-binary-c11 \ tst-wscanf-binary-c2x \ tst-wscanf-binary-gnu11 \ diff --git a/wcsmbs/tst-wprintf-intn.c b/wcsmbs/tst-wprintf-intn.c new file mode 100644 index 0000000000..0c0eb80c2c --- /dev/null +++ b/wcsmbs/tst-wprintf-intn.c @@ -0,0 +1,26 @@ +/* Test printf formats for intN_t, int_leastN_t and int_fastN_t types. + Wide string version. + Copyright (C) 2023 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/>. */ + +#define SNPRINTF swprintf +#define TEST_COMPARE_STRING_MACRO TEST_COMPARE_STRING_WIDE +#define STRLEN wcslen +#define CHAR wchar_t +#define L_(C) L ## C + +#include "../stdio-common/tst-printf-intn-main.c" |