[libc] Mass replace enclosing namespace (#67032)

This is step 4 of
https://discourse.llvm.org/t/rfc-customizable-namespace-to-allow-testing-the-libc-when-the-system-libc-is-also-llvms-libc/73079

20 files changed, 45 insertions, 45 deletions

diff --git a/libc/src/stdio/gpu/clearerr.cpp b/libc/src/stdio/gpu/clearerr.cpp
index 01c34ca..2267fdf 100644
--- a/libc/src/stdio/gpu/clearerr.cpp
+++ b/libc/src/stdio/gpu/clearerr.cpp
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(void, clearerr, (::FILE * stream)) {
   rpc::Client::Port port = rpc::client.open<RPC_CLEARERR>();
@@ -21,4 +21,4 @@ LLVM_LIBC_FUNCTION(void, clearerr, (::FILE * stream)) {
   port.close();
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/fclose.cpp b/libc/src/stdio/gpu/fclose.cpp
index a8e36bc..bdedbe5 100644
--- a/libc/src/stdio/gpu/fclose.cpp
+++ b/libc/src/stdio/gpu/fclose.cpp
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(int, fclose, (::FILE * stream)) {
   uint64_t ret = 0;
@@ -26,4 +26,4 @@ LLVM_LIBC_FUNCTION(int, fclose, (::FILE * stream)) {
   return static_cast<int>(ret);
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/feof.cpp b/libc/src/stdio/gpu/feof.cpp
index 27d27a4..ddcef38 100644
--- a/libc/src/stdio/gpu/feof.cpp
+++ b/libc/src/stdio/gpu/feof.cpp
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(int, feof, (::FILE * stream)) {
   int ret;
@@ -23,4 +23,4 @@ LLVM_LIBC_FUNCTION(int, feof, (::FILE * stream)) {
   return ret;
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/ferror.cpp b/libc/src/stdio/gpu/ferror.cpp
index e4bd631..9ed598f 100644
--- a/libc/src/stdio/gpu/ferror.cpp
+++ b/libc/src/stdio/gpu/ferror.cpp
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(int, ferror, (::FILE * stream)) {
   int ret;
@@ -23,4 +23,4 @@ LLVM_LIBC_FUNCTION(int, ferror, (::FILE * stream)) {
   return ret;
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/fgetc.cpp b/libc/src/stdio/gpu/fgetc.cpp
index ff4ef27..56f42a0 100644
--- a/libc/src/stdio/gpu/fgetc.cpp
+++ b/libc/src/stdio/gpu/fgetc.cpp
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(int, fgetc, (::FILE * stream)) {
   unsigned char c;
@@ -22,4 +22,4 @@ LLVM_LIBC_FUNCTION(int, fgetc, (::FILE * stream)) {
   return c;
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/fgets.cpp b/libc/src/stdio/gpu/fgets.cpp
index df00451..4cabd15 100644
--- a/libc/src/stdio/gpu/fgets.cpp
+++ b/libc/src/stdio/gpu/fgets.cpp
@@ -14,7 +14,7 @@
 #include <stddef.h>
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(char *, fgets,
                    (char *__restrict str, int count,
@@ -33,8 +33,8 @@ LLVM_LIBC_FUNCTION(char *, fgets,
     str[i] = c;
   }
 
-  bool has_error = __llvm_libc::ferror(stream);
-  bool has_eof = __llvm_libc::feof(stream);
+  bool has_error = LIBC_NAMESPACE::ferror(stream);
+  bool has_eof = LIBC_NAMESPACE::feof(stream);
 
   if (has_error || (i == 0 && has_eof))
     return nullptr;
@@ -43,4 +43,4 @@ LLVM_LIBC_FUNCTION(char *, fgets,
   return str;
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/file.h b/libc/src/stdio/gpu/file.h
index 4b07f9f..2cab2e6 100644
--- a/libc/src/stdio/gpu/file.h
+++ b/libc/src/stdio/gpu/file.h
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 namespace file {
 
 enum Stream {
@@ -94,4 +94,4 @@ LIBC_INLINE uint64_t read(::FILE *f, void *data, size_t size) {
 }
 
 } // namespace file
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/fopen.cpp b/libc/src/stdio/gpu/fopen.cpp
index 5d88b65..41d2c89 100644
--- a/libc/src/stdio/gpu/fopen.cpp
+++ b/libc/src/stdio/gpu/fopen.cpp
@@ -12,7 +12,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(::FILE *, fopen,
                    (const char *__restrict path, const char *__restrict mode)) {
@@ -29,4 +29,4 @@ LLVM_LIBC_FUNCTION(::FILE *, fopen,
   return reinterpret_cast<FILE *>(file);
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/fputc.cpp b/libc/src/stdio/gpu/fputc.cpp
index 90d2389..e6ef12f 100644
--- a/libc/src/stdio/gpu/fputc.cpp
+++ b/libc/src/stdio/gpu/fputc.cpp
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(int, fputc, (int c, ::FILE *stream)) {
   unsigned char uc = static_cast<unsigned char>(c);
@@ -23,4 +23,4 @@ LLVM_LIBC_FUNCTION(int, fputc, (int c, ::FILE *stream)) {
   return 0;
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/fputs.cpp b/libc/src/stdio/gpu/fputs.cpp
index c5919e8..1b6e073 100644
--- a/libc/src/stdio/gpu/fputs.cpp
+++ b/libc/src/stdio/gpu/fputs.cpp
@@ -13,7 +13,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(int, fputs,
                    (const char *__restrict str, ::FILE *__restrict stream)) {
@@ -24,4 +24,4 @@ LLVM_LIBC_FUNCTION(int, fputs,
   return 0;
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/fread.cpp b/libc/src/stdio/gpu/fread.cpp
index 2b9112e..fe367ae1 100644
--- a/libc/src/stdio/gpu/fread.cpp
+++ b/libc/src/stdio/gpu/fread.cpp
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(size_t, fread,
                    (void *__restrict buffer, size_t size, size_t nmemb,
@@ -22,4 +22,4 @@ LLVM_LIBC_FUNCTION(size_t, fread,
   return result / size;
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/fwrite.cpp b/libc/src/stdio/gpu/fwrite.cpp
index fccaabd..a059bd5 100644
--- a/libc/src/stdio/gpu/fwrite.cpp
+++ b/libc/src/stdio/gpu/fwrite.cpp
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(size_t, fwrite,
                    (const void *__restrict buffer, size_t size, size_t nmemb,
@@ -23,4 +23,4 @@ LLVM_LIBC_FUNCTION(size_t, fwrite,
   return result / size;
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/getc.cpp b/libc/src/stdio/gpu/getc.cpp
index a227222..b50e396 100644
--- a/libc/src/stdio/gpu/getc.cpp
+++ b/libc/src/stdio/gpu/getc.cpp
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(int, getc, (::FILE * stream)) {
   unsigned char c;
@@ -22,4 +22,4 @@ LLVM_LIBC_FUNCTION(int, getc, (::FILE * stream)) {
   return c;
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/getchar.cpp b/libc/src/stdio/gpu/getchar.cpp
index a7a6e6c..c8a0041 100644
--- a/libc/src/stdio/gpu/getchar.cpp
+++ b/libc/src/stdio/gpu/getchar.cpp
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(int, getchar, ()) {
   unsigned char c;
@@ -22,4 +22,4 @@ LLVM_LIBC_FUNCTION(int, getchar, ()) {
   return c;
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/putc.cpp b/libc/src/stdio/gpu/putc.cpp
index d450edb..b5ecbfc 100644
--- a/libc/src/stdio/gpu/putc.cpp
+++ b/libc/src/stdio/gpu/putc.cpp
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(int, putc, (int c, ::FILE *stream)) {
   unsigned char uc = static_cast<unsigned char>(c);
@@ -23,4 +23,4 @@ LLVM_LIBC_FUNCTION(int, putc, (int c, ::FILE *stream)) {
   return 0;
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/putchar.cpp b/libc/src/stdio/gpu/putchar.cpp
index df57754..57663ee 100644
--- a/libc/src/stdio/gpu/putchar.cpp
+++ b/libc/src/stdio/gpu/putchar.cpp
@@ -11,7 +11,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(int, putchar, (int c)) {
   unsigned char uc = static_cast<unsigned char>(c);
@@ -23,4 +23,4 @@ LLVM_LIBC_FUNCTION(int, putchar, (int c)) {
   return 0;
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/puts.cpp b/libc/src/stdio/gpu/puts.cpp
index e50e2cc..10573a8 100644
--- a/libc/src/stdio/gpu/puts.cpp
+++ b/libc/src/stdio/gpu/puts.cpp
@@ -13,7 +13,7 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 
 LLVM_LIBC_FUNCTION(int, puts, (const char *__restrict str)) {
   cpp::string_view str_view(str);
@@ -24,4 +24,4 @@ LLVM_LIBC_FUNCTION(int, puts, (const char *__restrict str)) {
   return 0;
 }
 
-} // namespace __llvm_libc
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/stdio/gpu/stderr.cpp b/libc/src/stdio/gpu/stderr.cpp
index 5e7b79e..7084682 100644
--- a/libc/src/stdio/gpu/stderr.cpp
+++ b/libc/src/stdio/gpu/stderr.cpp
@@ -8,9 +8,9 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 static struct {
 } stub;
 FILE *stderr = reinterpret_cast<FILE *>(&stub);
-} // namespace __llvm_libc
-extern "C" FILE *stderr = reinterpret_cast<FILE *>(&__llvm_libc::stub);
+} // namespace LIBC_NAMESPACE
+extern "C" FILE *stderr = reinterpret_cast<FILE *>(&LIBC_NAMESPACE::stub);
diff --git a/libc/src/stdio/gpu/stdin.cpp b/libc/src/stdio/gpu/stdin.cpp
index 408852b..1a58461 100644
--- a/libc/src/stdio/gpu/stdin.cpp
+++ b/libc/src/stdio/gpu/stdin.cpp
@@ -8,9 +8,9 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 static struct {
 } stub;
 FILE *stdin = reinterpret_cast<FILE *>(&stub);
-} // namespace __llvm_libc
-extern "C" FILE *stdin = reinterpret_cast<FILE *>(&__llvm_libc::stub);
+} // namespace LIBC_NAMESPACE
+extern "C" FILE *stdin = reinterpret_cast<FILE *>(&LIBC_NAMESPACE::stub);
diff --git a/libc/src/stdio/gpu/stdout.cpp b/libc/src/stdio/gpu/stdout.cpp
index 02425d3..abeeff2 100644
--- a/libc/src/stdio/gpu/stdout.cpp
+++ b/libc/src/stdio/gpu/stdout.cpp
@@ -8,9 +8,9 @@
 
 #include <stdio.h>
 
-namespace __llvm_libc {
+namespace LIBC_NAMESPACE {
 static struct {
 } stub;
 FILE *stdout = reinterpret_cast<FILE *>(&stub);
-} // namespace __llvm_libc
-extern "C" FILE *stdout = reinterpret_cast<FILE *>(&__llvm_libc::stub);
+} // namespace LIBC_NAMESPACE
+extern "C" FILE *stdout = reinterpret_cast<FILE *>(&LIBC_NAMESPACE::stub);