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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
commit | f215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch) | |
tree | 6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/Runtime/common/string/strprintf.cpp | |
parent | Initial commit. (diff) | |
download | virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip |
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/Runtime/common/string/strprintf.cpp')
-rw-r--r-- | src/VBox/Runtime/common/string/strprintf.cpp | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/string/strprintf.cpp b/src/VBox/Runtime/common/string/strprintf.cpp new file mode 100644 index 00000000..359d499d --- /dev/null +++ b/src/VBox/Runtime/common/string/strprintf.cpp @@ -0,0 +1,131 @@ +/* $Id: strprintf.cpp $ */ +/** @file + * IPRT - String Formatters. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <iprt/string.h> +#include "internal/iprt.h" + +#include <iprt/assert.h> + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** strbufoutput() argument structure. */ +typedef struct STRBUFARG +{ + /** Pointer to current buffer position. */ + char *psz; + /** Number of bytes left in the buffer - not including the trailing zero. */ + size_t cch; +} STRBUFARG; +/** Pointer to a strbufoutput() argument structure. */ +typedef STRBUFARG *PSTRBUFARG; + + +/********************************************************************************************************************************* +* Internal Functions * +*********************************************************************************************************************************/ +static DECLCALLBACK(size_t) strbufoutput(void *pvArg, const char *pachChars, size_t cbChars); + + +/** + * Output callback. + * + * @returns number of bytes written. + * @param pvArg Pointer to a STRBUFARG structure. + * @param pachChars Pointer to an array of utf-8 characters. + * @param cbChars Number of bytes in the character array pointed to by pachChars. + */ +static DECLCALLBACK(size_t) strbufoutput(void *pvArg, const char *pachChars, size_t cbChars) +{ + PSTRBUFARG pArg = (PSTRBUFARG)pvArg; + char *pszCur = pArg->psz; /* We actually have to spell this out for VS2010, or it will load for each case. */ + + cbChars = RT_MIN(pArg->cch, cbChars); + if (cbChars) + { + pArg->cch -= cbChars; + + /* Note! For VS2010/64 we need at least 7 case statements before it generates a jump table. */ + switch (cbChars) + { + default: + memcpy(pszCur, pachChars, cbChars); + break; + case 8: pszCur[7] = pachChars[7]; RT_FALL_THRU(); + case 7: pszCur[6] = pachChars[6]; RT_FALL_THRU(); + case 6: pszCur[5] = pachChars[5]; RT_FALL_THRU(); + case 5: pszCur[4] = pachChars[4]; RT_FALL_THRU(); + case 4: pszCur[3] = pachChars[3]; RT_FALL_THRU(); + case 3: pszCur[2] = pachChars[2]; RT_FALL_THRU(); + case 2: pszCur[1] = pachChars[1]; RT_FALL_THRU(); + case 1: pszCur[0] = pachChars[0]; RT_FALL_THRU(); + case 0: + break; + } + pArg->psz = pszCur += cbChars; + } + *pszCur = '\0'; + + return cbChars; +} + + +RTDECL(size_t) RTStrPrintfV(char *pszBuffer, size_t cchBuffer, const char *pszFormat, va_list args) +{ + STRBUFARG Arg; + AssertMsgReturn(cchBuffer, ("Excellent idea! Format a string with no space for the output!\n"), 0); + Arg.psz = pszBuffer; + Arg.cch = cchBuffer - 1; + return RTStrFormatV(strbufoutput, &Arg, NULL, NULL, pszFormat, args); +} +RT_EXPORT_SYMBOL(RTStrPrintfV); + + +RTDECL(size_t) RTStrPrintfExV(PFNSTRFORMAT pfnFormat, void *pvArg, char *pszBuffer, size_t cchBuffer, const char *pszFormat, va_list args) +{ + STRBUFARG Arg; + AssertMsgReturn(cchBuffer, ("Excellent idea! Format a string with no space for the output!\n"), 0); + Arg.psz = pszBuffer; + Arg.cch = cchBuffer - 1; + return RTStrFormatV(strbufoutput, &Arg, pfnFormat, pvArg, pszFormat, args); +} +RT_EXPORT_SYMBOL(RTStrPrintfExV); + |