[UCRT] Import Microsoft.Windows.SDK.CRTSource version 10.0.22621.3

Imported from https://www.nuget.org/packages/Microsoft.Windows.SDK.CRTSource/10.0.22621.3
License: MIT

sdk/lib/ucrt/stdio/fputc.cpp

@@ -0,0 +1,97 @@
+//
+// fputc.cpp
+//
+//      Copyright (c) Microsoft Corporation.  All rights reserved.
+//
+// Defines the fputc() family of functions, which write a character to a stream.
+//
+#include <corecrt_internal_stdio.h>
+#include <corecrt_internal_ptd_propagation.h>
+
+
+extern "C" int __cdecl _fputc_nolock_internal(int const c, FILE* const public_stream, __crt_cached_ptd_host& ptd)
+{
+    __crt_stdio_stream const stream(public_stream);
+
+    --stream->_cnt;
+
+    // If there is no room for the character in the buffer, flush the buffer and
+    // write the character:
+    if (stream->_cnt < 0)
+    {
+        return __acrt_stdio_flush_and_write_narrow_nolock(c, stream.public_stream(), ptd);
+    }
+
+    // Otherwise, there is sufficient room, so we can write directly to the buffer:
+    char const char_value = static_cast<char>(c);
+    *stream->_ptr++ = char_value;
+    return char_value & 0xff;
+}
+
+extern "C" int __cdecl _fputc_nolock(int const c, FILE* const public_stream)
+{
+    __crt_cached_ptd_host ptd;
+    return _fputc_nolock_internal(c, public_stream, ptd);
+}
+
+extern "C" int __cdecl _putc_nolock(int const c, FILE* const stream)
+{
+    return _fputc_nolock(c, stream);
+}
+
+
+
+// Writes a character to a stream.  Returns the character on success; returns
+// EOF on failure.
+static int __cdecl _fputc_internal(int const c, FILE* const stream, __crt_cached_ptd_host& ptd)
+{
+    _UCRT_VALIDATE_RETURN(ptd, stream != nullptr, EINVAL, EOF);
+
+    int return_value = 0;
+
+    _lock_file(stream);
+    __try
+    {
+        _UCRT_VALIDATE_STREAM_ANSI_RETURN(ptd, stream, EINVAL, EOF);
+
+        return_value = _fputc_nolock_internal(c, stream, ptd);
+    }
+    __finally
+    {
+        _unlock_file(stream);
+    }
+
+    return return_value;
+}
+
+// Writes a character to a stream.  Returns the character on success; returns
+// EOF on failure.
+extern "C" int __cdecl fputc(int const c, FILE* const stream)
+{
+    __crt_cached_ptd_host ptd;
+    return _fputc_internal(c, stream, ptd);
+}
+
+
+
+// Writes a character to a stream.  See fputc() for details.
+extern "C" int __cdecl putc(int const c, FILE* const stream)
+{
+    return fputc(c, stream);
+}
+
+
+
+// Writes a character to stdout.  See fputc() for details.
+extern "C" int __cdecl _fputchar(int const c)
+{
+    return fputc(c, stdout);
+}
+
+
+
+// Writes a character to stdout.  See fputc() for details.
+extern "C" int __cdecl putchar(int const c)
+{
+    return _fputchar(c);
+}