diff options
| author | monster <[email protected]> | 2022-07-07 14:41:37 +0300 |
|---|---|---|
| committer | monster <[email protected]> | 2022-07-07 14:41:37 +0300 |
| commit | 06e5c21a835c0e923506c4ff27929f34e00761c2 (patch) | |
| tree | 75efcbc6854ef9bd476eb8bf00cc5c900da436a2 /contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp | |
| parent | 03f024c4412e3aa613bb543cf1660176320ba8f4 (diff) | |
fix ya.make
Diffstat (limited to 'contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp')
| -rw-r--r-- | contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp b/contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp deleted file mode 100644 index dbec4083cba..00000000000 --- a/contrib/libs/cxxsupp/libcxx/src/support/win32/support.cpp +++ /dev/null @@ -1,172 +0,0 @@ -//===----------------------------------------------------------------------===// -// -// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. -// See https://llvm.org/LICENSE.txt for license information. -// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - -#include <cstdarg> // va_start, va_end -#include <cstddef> // size_t -#include <cstdlib> // malloc -#include <cstdio> // vsprintf, vsnprintf -#include <cstring> // strcpy, wcsncpy -#include <cwchar> // mbstate_t - - -// Like sprintf, but when return value >= 0 it returns -// a pointer to a malloc'd string in *sptr. -// If return >= 0, use free to delete *sptr. -int __libcpp_vasprintf( char **sptr, const char *__restrict format, va_list ap ) -{ - *sptr = NULL; - // Query the count required. - va_list ap_copy; - va_copy(ap_copy, ap); - _LIBCPP_DIAGNOSTIC_PUSH - _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wformat-nonliteral") - int count = vsnprintf( NULL, 0, format, ap_copy ); - _LIBCPP_DIAGNOSTIC_POP - va_end(ap_copy); - if (count < 0) - return count; - size_t buffer_size = static_cast<size_t>(count) + 1; - char* p = static_cast<char*>(malloc(buffer_size)); - if ( ! p ) - return -1; - // If we haven't used exactly what was required, something is wrong. - // Maybe bug in vsnprintf. Report the error and return. - _LIBCPP_DIAGNOSTIC_PUSH - _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wformat-nonliteral") - if (vsnprintf(p, buffer_size, format, ap) != count) { - _LIBCPP_DIAGNOSTIC_POP - free(p); - return -1; - } - // All good. This is returning memory to the caller not freeing it. - *sptr = p; - return count; -} - -// Returns >= 0: the number of wide characters found in the -// multi byte sequence src (of src_size_bytes), that fit in the buffer dst -// (of max_dest_chars elements size). The count returned excludes the -// null terminator. When dst is NULL, no characters are copied -// and no "out" parameters are updated. -// Returns (size_t) -1: an incomplete sequence encountered. -// Leaves *src pointing the next character to convert or NULL -// if a null character was converted from *src. -size_t mbsnrtowcs( wchar_t *__restrict dst, const char **__restrict src, - size_t src_size_bytes, size_t max_dest_chars, mbstate_t *__restrict ps ) -{ - const size_t terminated_sequence = static_cast<size_t>(0); - //const size_t invalid_sequence = static_cast<size_t>(-1); - const size_t incomplete_sequence = static_cast< size_t>(-2); - - size_t dest_converted = 0; - size_t source_converted = 0; - size_t source_remaining = src_size_bytes; - size_t result = 0; - bool have_result = false; - - // If dst is null then max_dest_chars should be ignored according to the - // standard. Setting max_dest_chars to a large value has this effect. - if (!dst) - max_dest_chars = static_cast<size_t>(-1); - - while ( source_remaining ) { - if ( dst && dest_converted >= max_dest_chars ) - break; - // Converts one multi byte character. - // if result > 0, it's the size in bytes of that character. - // othewise if result is zero it indicates the null character has been found. - // otherwise it's an error and errno may be set. - size_t char_size = mbrtowc( dst ? dst + dest_converted : NULL, *src + source_converted, source_remaining, ps ); - // Don't do anything to change errno from here on. - if ( char_size > 0 ) { - source_remaining -= char_size; - source_converted += char_size; - ++dest_converted; - continue; - } - result = char_size; - have_result = true; - break; - } - if ( dst ) { - if ( have_result && result == terminated_sequence ) - *src = NULL; - else - *src += source_converted; - } - if ( have_result && result != terminated_sequence && result != incomplete_sequence ) - return static_cast<size_t>(-1); - - return dest_converted; -} - -// Converts max_source_chars from the wide character buffer pointer to by *src, -// into the multi byte character sequence buffer stored at dst which must be -// dst_size_bytes bytes in size. -// Returns >= 0: the number of bytes in the sequence -// converted from *src, excluding the null terminator. -// Returns size_t(-1) if an error occurs, also sets errno. -// If dst is NULL dst_size_bytes is ignored and no bytes are copied to dst -// and no "out" parameters are updated. -size_t wcsnrtombs( char *__restrict dst, const wchar_t **__restrict src, - size_t max_source_chars, size_t dst_size_bytes, mbstate_t *__restrict ps ) -{ - //const size_t invalid_sequence = static_cast<size_t>(-1); - - size_t source_converted = 0; - size_t dest_converted = 0; - size_t dest_remaining = dst_size_bytes; - size_t char_size = 0; - const errno_t no_error = ( errno_t) 0; - errno_t result = ( errno_t ) 0; - bool have_result = false; - bool terminator_found = false; - - // If dst is null then dst_size_bytes should be ignored according to the - // standard. Setting dest_remaining to a large value has this effect. - if (!dst) - dest_remaining = static_cast<size_t>(-1); - - while ( source_converted != max_source_chars ) { - if ( ! dest_remaining ) - break; - wchar_t c = (*src)[source_converted]; - if ( dst ) - result = wcrtomb_s( &char_size, dst + dest_converted, dest_remaining, c, ps); - else - result = wcrtomb_s( &char_size, NULL, 0, c, ps); - // If result is zero there is no error and char_size contains the - // size of the multi-byte-sequence converted. - // Otherwise result indicates an errno type error. - if ( result == no_error ) { - if ( c == L'\0' ) { - terminator_found = true; - break; - } - ++source_converted; - if ( dst ) - dest_remaining -= char_size; - dest_converted += char_size; - continue; - } - have_result = true; - break; - } - if ( dst ) { - if ( terminator_found ) - *src = NULL; - else - *src = *src + source_converted; - } - if ( have_result && result != no_error ) { - errno = result; - return static_cast<size_t>(-1); - } - - return dest_converted; -} |
