diff options
Diffstat (limited to 'src/versionstr.cc')
-rw-r--r-- | src/versionstr.cc | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/src/versionstr.cc b/src/versionstr.cc new file mode 100644 index 0000000..3ef09e2 --- /dev/null +++ b/src/versionstr.cc @@ -0,0 +1,150 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set et sw=2 ts=2: */ +/*************************************************************************** + * versionstr.cc + * + * Wed Jul 22 11:41:32 CEST 2009 + * Copyright 2009 Bent Bisballe Nyeng + * deva@aasimon.org + ****************************************************************************/ + +/* + * This file is part of DrumGizmo. + * + * DrumGizmo 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; either version 2 of the License, or + * (at your option) any later version. + * + * DrumGizmo 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 DrumGizmo; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#include "versionstr.h" + +#include <memory.h> +#include <stdlib.h> +#include <stdio.h> + +// Workaround - major, minor and patch are defined as macros when using _GNU_SOURCES +#ifdef major +#undef major +#endif +#ifdef minor +#undef minor +#endif +#ifdef patch +#undef patch +#endif + +VersionStr::VersionStr(std::string v) throw(const char *) +{ + memset(version, 0, sizeof(version)); + set(v); +} + +VersionStr::VersionStr(size_t major, size_t minor, size_t patch) +{ + version[0] = major; + version[1] = minor; + version[2] = patch; +} + +void VersionStr::set(std::string v) throw(const char *) +{ + std::string num; + size_t idx = 0; + for(size_t i = 0; i < v.length(); i++) { + if(v[i] == '.') { + if(idx > 2) throw "Version string is too long."; + version[idx] = atoi(num.c_str()); + idx++; + num = ""; + } else if(v[i] >= '0' && v[i] <= '9') { + num.append(1, v[i]); + } else { + throw "Version string contains illegal character."; + } + } + if(idx > 2) throw "Version string is too long."; + version[idx] = atoi(num.c_str()); +} + +VersionStr::operator std::string() const +{ + std::string v; + char *buf; + size_t sz; + if(patch()) sz = asprintf(&buf, "%d.%d.%d", major(), minor(), patch()); + else sz = asprintf(&buf, "%d.%d", major(), minor()); + if(sz) v = buf; + free(buf); + return v; +} + +void VersionStr::operator=(std::string v) throw(const char *) +{ + set(v); +} + +// return a - b simplified as -1, 0 or 1 +static int vdiff(const VersionStr &a, const VersionStr &b) +{ + if(a.major() < b.major()) return -1; + if(a.major() > b.major()) return 1; + if(a.minor() < b.minor()) return -1; + if(a.minor() > b.minor()) return 1; + if(a.patch() < b.patch()) return -1; + if(a.patch() > b.patch()) return 1; + return 0; +} + +bool VersionStr::operator<(const VersionStr &other) const +{ + if(vdiff(*this, other) == -1) return true; + return false; +} + +bool VersionStr::operator>(const VersionStr &other) const +{ + if(vdiff(*this, other) == 1) return true; + return false; +} + +bool VersionStr::operator==(const VersionStr &other) const +{ + if(vdiff(*this, other) == 0) return true; + return false; +} + +bool VersionStr::operator<=(const VersionStr &other) const +{ + if(vdiff(*this, other) != 1) return true; + return false; +} + +bool VersionStr::operator>=(const VersionStr &other) const +{ + if(vdiff(*this, other) != -1) return true; + return false; +} + +size_t VersionStr::major() const +{ + return version[0]; +} + +size_t VersionStr::minor() const +{ + return version[1]; +} + +size_t VersionStr::patch() const +{ + return version[2]; +} |