Add iostream to CTL

Makefile

@@ -256,7 +256,6 @@ include third_party/nsync/mem/BUILD.mk		# │  You can now use stdio
 include libc/proc/BUILD.mk			# │  You can now use threads
 include libc/dlopen/BUILD.mk			# │  You can now use processes
 include libc/thread/BUILD.mk			# │  You can finally call malloc()
-include ctl/BUILD.mk				# │
 include third_party/zlib/BUILD.mk		# │
 include libc/stdio/BUILD.mk			# │
 include tool/hello/BUILD.mk			# │
@@ -285,6 +284,7 @@ include third_party/ncurses/BUILD.mk		# │
 include third_party/readline/BUILD.mk		# │
 include third_party/libunwind/BUILD.mk		# |
 include third_party/libcxxabi/BUILD.mk		# |
+include ctl/BUILD.mk				# │
 include third_party/libcxx/BUILD.mk		# │
 include third_party/openmp/BUILD.mk		# │
 include third_party/double-conversion/BUILD.mk	# │

ctl/BUILD.mk

@@ -18,7 +18,11 @@ CTL_A_CHECKS =						\
 CTL_A_DIRECTDEPS =					\
 	LIBC_INTRIN					\
 	LIBC_MEM					\
+	LIBC_STDIO					\
 	LIBC_STR					\
+	THIRD_PARTY_GDTOA				\
+	THIRD_PARTY_LIBCXXABI				\
+	THIRD_PARTY_LIBUNWIND				\
 
 CTL_A_DEPS := $(call uniq,$(foreach x,$(CTL_A_DIRECTDEPS),$($(x))))
 

ctl/ios.cc

@@ -0,0 +1,39 @@
+// -*- mode:c++; indent-tabs-mode:nil; c-basic-offset:4; coding:utf-8 -*-
+// vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
+//
+// Copyright 2024 Justine Alexandra Roberts Tunney
+//
+// Permission to use, copy, modify, and/or distribute this software for
+// any purpose with or without fee is hereby granted, provided that the
+// above copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+// WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+// AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+// DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+// PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+// TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+#include "ios.h"
+
+namespace ctl {
+
+ios::ios(FILE* file) : file_(file)
+{
+}
+
+ios::~ios() = default;
+
+ios&
+ios::operator=(ios&& other) noexcept
+{
+    if (this != &other) {
+        file_ = other.file_;
+        other.file_ = nullptr;
+    }
+    return *this;
+}
+
+} // namespace ctl

ctl/ios.h

@@ -0,0 +1,27 @@
+// -*-mode:c++;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8-*-
+// vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
+#ifndef CTL_IOS_H_
+#define CTL_IOS_H_
+#include "ios_base.h"
+
+struct FILE;
+
+namespace ctl {
+
+class ios : public ios_base
+{
+  public:
+    explicit ios(FILE*);
+    virtual ~ios();
+
+  protected:
+    ios& operator=(ios&&) noexcept;
+    FILE* file_;
+
+  private:
+    ios(const ios&) = delete;
+};
+
+} // namespace ctl
+
+#endif // CTL_IOS_H_

ctl/ios_base.cc

@@ -0,0 +1,118 @@
+// -*- mode:c++; indent-tabs-mode:nil; c-basic-offset:4; coding:utf-8 -*-
+// vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
+//
+// Copyright 2024 Justine Alexandra Roberts Tunney
+//
+// Permission to use, copy, modify, and/or distribute this software for
+// any purpose with or without fee is hereby granted, provided that the
+// above copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+// WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+// AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+// DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+// PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+// TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+#include "ios_base.h"
+
+namespace ctl {
+
+ios_base::ios_base() : state_(goodbit), flags_(skipws | dec)
+{
+}
+
+ios_base::~ios_base() = default;
+
+ios_base::fmtflags
+ios_base::flags() const
+{
+    return static_cast<ios_base::fmtflags>(flags_);
+}
+
+ios_base::fmtflags
+ios_base::flags(fmtflags fmtfl)
+{
+    int old = flags_;
+    flags_ = fmtfl;
+    return static_cast<ios_base::fmtflags>(old);
+}
+
+ios_base::fmtflags
+ios_base::setf(fmtflags fmtfl)
+{
+    int old = flags_;
+    flags_ |= fmtfl;
+    return static_cast<ios_base::fmtflags>(old);
+}
+
+ios_base::fmtflags
+ios_base::setf(fmtflags fmtfl, fmtflags mask)
+{
+    int old = flags_;
+    flags_ = (flags_ & ~mask) | (fmtfl & mask);
+    return static_cast<ios_base::fmtflags>(old);
+}
+
+void
+ios_base::unsetf(fmtflags mask)
+{
+    flags_ &= ~mask;
+}
+
+ios_base::iostate
+ios_base::rdstate() const
+{
+    return static_cast<ios_base::iostate>(state_);
+}
+
+void
+ios_base::clear(int state)
+{
+    state_ = state;
+}
+
+void
+ios_base::setstate(int state)
+{
+    state_ |= state;
+}
+
+bool
+ios_base::good() const
+{
+    return state_ == goodbit;
+}
+
+bool
+ios_base::eof() const
+{
+    return (state_ & eofbit) != 0;
+}
+
+bool
+ios_base::fail() const
+{
+    return (state_ & (failbit | badbit)) != 0;
+}
+
+bool
+ios_base::bad() const
+{
+    return (state_ & badbit) != 0;
+}
+
+bool
+ios_base::operator!() const
+{
+    return fail();
+}
+
+ios_base::operator bool() const
+{
+    return !fail();
+}
+
+} // namespace ctl

ctl/ios_base.h

@@ -0,0 +1,86 @@
+// -*-mode:c++;indent-tabs-mode:nil;c-basic-offset:4;tab-width:8;coding:utf-8-*-
+// vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
+#ifndef CTL_IOS_BASE_H_
+#define CTL_IOS_BASE_H_
+
+namespace ctl {
+
+class ios_base
+{
+  public:
+    typedef size_t streamsize;
+
+    enum iostate
+    {
+        goodbit = 0,
+        badbit = 1,
+        failbit = 2,
+        eofbit = 4
+    };
+
+    enum fmtflags
+    {
+        boolalpha = 1 << 0,
+        dec = 1 << 1,
+        fixed = 1 << 2,
+        hex = 1 << 3,
+        internal = 1 << 4,
+        left = 1 << 5,
+        oct = 1 << 6,
+        right = 1 << 7,
+        scientific = 1 << 8,
+        showbase = 1 << 9,
+        showpoint = 1 << 10,
+        showpos = 1 << 11,
+        skipws = 1 << 12,
+        unitbuf = 1 << 13,
+        uppercase = 1 << 14,
+        adjustfield = left | right | internal,
+        basefield = dec | oct | hex,
+        floatfield = scientific | fixed
+    };
+
+    enum openmode
+    {
+        app = 1 << 0,
+        binary = 1 << 1,
+        in = 1 << 2,
+        out = 1 << 3,
+        trunc = 1 << 4,
+        ate = 1 << 5
+    };
+
+  protected:
+    ios_base();
+    virtual ~ios_base();
+
+    int state_;
+    int flags_;
+
+  public:
+    fmtflags flags() const;
+    fmtflags flags(fmtflags);
+    fmtflags setf(fmtflags);
+    fmtflags setf(fmtflags, fmtflags);
+    void unsetf(fmtflags);
+
+    iostate rdstate() const;
+    void clear(int = goodbit);
+    void setstate(int);
+
+    bool good() const;
+    bool eof() const;
+    bool fail() const;
+    bool bad() const;
+
+    bool operator!() const;
+    explicit operator bool() const;
+
+  private:
+    ios_base(const ios_base&) = delete;
+    ios_base& operator=(const ios_base&) = delete;
+};
+
+} // namespace ctl
+
+#endif // CTL_IOS_BASE_H_

ctl/is_convertible.h

@@ -2,7 +2,6 @@
 // vi: set et ft=cpp ts=4 sts=4 sw=4 fenc=utf-8 :vi
 #ifndef CTL_IS_CONVERTIBLE_H_
 #define CTL_IS_CONVERTIBLE_H_
-
 #include "ctl/integral_constant.h"
 #include "ctl/void_t.h"