Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: 23457288a9
Fetching contributors…

Cannot retrieve contributors at this time

57 lines (48 sloc) 2.73 kb
// Copyright 2011 Shinichiro Hamaji. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials
// provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY Shinichiro Hamaji ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Shinichiro Hamaji OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE.
#ifndef ENV_FLAGS_H_
#define ENV_FLAGS_H_
#include <stdlib.h>
#include <string.h>
#define LD_MAC_EnvToBool(envname, dflt) \
(!getenv(envname) ? (dflt) : memchr("tTyY1\0", getenv(envname)[0], 6) != NULL)
#define LD_MAC_DECLARE_VARIABLE(type, name, tn) \
namespace FLAG__namespace_do_not_use_directly_use_LD_MAC_DECLARE_##tn##_instead { \
extern type FLAGS_##name; \
} \
using FLAG__namespace_do_not_use_directly_use_LD_MAC_DECLARE_##tn##_instead::FLAGS_##name
#define LD_MAC_DEFINE_VARIABLE(type, name, value, meaning, tn) \
namespace FLAG__namespace_do_not_use_directly_use_LD_MAC_DECLARE_##tn##_instead { \
type FLAGS_##name(value); \
} \
using FLAG__namespace_do_not_use_directly_use_LD_MAC_DECLARE_##tn##_instead::FLAGS_##name;
#define DECLARE_bool(name) \
LD_MAC_DECLARE_VARIABLE(bool, name, bool)
#define DEFINE_bool(name, value, meaning) \
LD_MAC_DEFINE_VARIABLE(bool, name, LD_MAC_EnvToBool("LD_MAC_" #name, value), \
meaning, bool)
#endif // ENV_FLAGS_H_
Jump to Line
Something went wrong with that request. Please try again.