AK: Rename printf.cpp to PrintfImplementation.h.

Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/98eeb8f22df

AK/PrintfImplementation.h

@@ -1,17 +1,11 @@
-typedef unsigned char byte;
-typedef unsigned short word;
-typedef unsigned int dword;
-typedef long long unsigned int qword;
+#pragma once
 
-[[gnu::always_inline]] inline size_t strlen(const char* str)
-{
-    size_t len = 0;
-    while (*(str++))
-        ++len;
-    return len;
-}
+#include <AK/Types.h>
+#include <LibC/stdarg.h>
 
-static constexpr const char* h = "0123456789abcdef";
+static constexpr const char* printf_hex_digits = "0123456789abcdef";
+
+extern "C" size_t strlen(const char*);
 
 template<typename PutChFunc, typename T>
 [[gnu::always_inline]] inline int print_hex(PutChFunc putch, char*& bufptr, T number, byte fields)
@@ -20,7 +14,7 @@ template<typename PutChFunc, typename T>
     byte shr_count = fields * 4;
     while (shr_count) {
         shr_count -= 4;
-        putch(bufptr, h[(number >> shr_count) & 0x0F]);
+        putch(bufptr, printf_hex_digits[(number >> shr_count) & 0x0F]);
         ++ret;
     }
     return ret;

AK/StringBuilder.cpp

@@ -1,6 +1,6 @@
-#include "StringBuilder.h"
-#include "printf.cpp"
+#include <AK/PrintfImplementation.h>
 #include <AK/StdLibExtras.h>
+#include <AK/StringBuilder.h>
 #include <LibC/stdarg.h>
 
 namespace AK {

Kernel/kprintf.cpp

@@ -1,10 +1,10 @@
-#include <Kernel/kstdio.h>
+#include <AK/PrintfImplementation.h>
+#include <AK/Types.h>
 #include <Kernel/Console.h>
 #include <Kernel/IO.h>
-#include <LibC/stdarg.h>
 #include <Kernel/Process.h>
-#include <AK/Types.h>
-#include <AK/printf.cpp>
+#include <Kernel/kstdio.h>
+#include <LibC/stdarg.h>
 
 static void console_putch(char*&, char ch)
 {

LibC/stdio.cpp

@@ -1,17 +1,17 @@
-#include <stdio.h>
-#include <stdarg.h>
-#include <sys/types.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-#include <assert.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <AK/printf.cpp>
+#include <AK/PrintfImplementation.h>
 #include <AK/StdLibExtras.h>
 #include <AK/ValueRestorer.h>
 #include <Kernel/Syscall.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <unistd.h>
 
 extern "C" {
 

LibCore/CIODevice.cpp

@@ -1,9 +1,9 @@
+#include <AK/PrintfImplementation.h>
 #include <LibCore/CIODevice.h>
 #include <stdio.h>
 #include <sys/select.h>
 #include <sys/time.h>
 #include <unistd.h>
-#include <AK/printf.cpp>
 
 CIODevice::CIODevice(CObject* parent)
     : CObject(parent)