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06b9b3e0ad
Quite a lot of churn on style, but lots of
good work refactoring complicated functions
and lots more unit-tests.
Thanks mostly to rillig at NetBSD
Some interesting entries from ChangeLog
o .MAKE.{UID,GID} represent uid and gid running make.
o allow env var MAKE_OBJDIR_CHECK_WRITABLE=no to skip writable
checks in InitObjdir. Explicit .OBJDIR target always allows
read-only directory.
o add more unit tests for META MODE
Merge commit '8e11a9b4250be3c3379c45fa820bff78d99d5946' into main
Change-Id: I464fd4c013067f0915671c1ccc96d2d8090b2b9c
93 lines
2.8 KiB
C
Executable file
93 lines
2.8 KiB
C
Executable file
/* $NetBSD: enum.c,v 1.14 2021/01/09 16:06:09 rillig Exp $ */
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/*
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Copyright (c) 2020 Roland Illig <rillig@NetBSD.org>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
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BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "make.h"
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MAKE_RCSID("$NetBSD: enum.c,v 1.14 2021/01/09 16:06:09 rillig Exp $");
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/*
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* Convert a bitset into a string representation, showing the names of the
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* individual bits.
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*
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* Optionally, shortcuts for groups of bits can be added. To have an effect,
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* they need to be listed before their individual bits.
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*/
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const char *
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Enum_FlagsToString(char *buf, size_t buf_size,
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int value, const EnumToStringSpec *spec)
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{
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const char *buf_start = buf;
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const char *sep = "";
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size_t sep_len = 0;
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for (; spec->es_value != 0; spec++) {
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size_t name_len;
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if ((value & spec->es_value) != spec->es_value)
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continue;
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value &= ~spec->es_value;
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assert(buf_size >= sep_len + 1);
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memcpy(buf, sep, sep_len);
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buf += sep_len;
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buf_size -= sep_len;
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name_len = strlen(spec->es_name);
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assert(buf_size >= name_len + 1);
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memcpy(buf, spec->es_name, name_len);
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buf += name_len;
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buf_size -= name_len;
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sep = ENUM__SEP;
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sep_len = sizeof ENUM__SEP - 1;
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}
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/* If this assertion fails, the listed enum values are incomplete. */
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assert(value == 0);
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if (buf == buf_start)
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return "none";
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assert(buf_size >= 1);
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buf[0] = '\0';
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return buf_start;
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}
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/* Convert a fixed-value enum into a string representation. */
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const char *
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Enum_ValueToString(int value, const EnumToStringSpec *spec)
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{
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for (; spec->es_name[0] != '\0'; spec++) {
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if (value == spec->es_value)
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return spec->es_name;
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}
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abort(/* unknown enum value */);
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/*NOTREACHED*/
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}
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