gdb: Use std::min and std::max throughout

Otherwise including <string> or some other C++ header is broken.
E.g.:

  In file included from /opt/gcc/include/c++/7.0.0/bits/char_traits.h:39:0,
		   from /opt/gcc/include/c++/7.0.0/string:40,
		   from /home/pedro/gdb/mygit/cxx-convertion/src/gdb/infrun.c:68:
  /opt/gcc/include/c++/7.0.0/bits/stl_algobase.h:243:56: error: macro "min" passed 3 arguments, but takes just 2
       min(const _Tp& __a, const _Tp& __b, _Compare __comp)
							  ^
  /opt/gcc/include/c++/7.0.0/bits/stl_algobase.h:265:56: error: macro "max" passed 3 arguments, but takes just 2
       max(const _Tp& __a, const _Tp& __b, _Compare __comp)
							  ^
  In file included from .../src/gdb/infrun.c:21:0:

To the best of my grepping abilities, I believe I adjusted all min/max
calls.

gdb/ChangeLog:
2016-09-16  Pedro Alves  <palves@redhat.com>

	* defs.h (min, max): Delete.
	* aarch64-tdep.c: Include <algorithm> and use std::min and
	std::max throughout.
	* aarch64-tdep.c: Likewise.
	* alpha-tdep.c: Likewise.
	* amd64-tdep.c: Likewise.
	* amd64-windows-tdep.c: Likewise.
	* arm-tdep.c: Likewise.
	* avr-tdep.c: Likewise.
	* breakpoint.c: Likewise.
	* btrace.c: Likewise.
	* ctf.c: Likewise.
	* disasm.c: Likewise.
	* doublest.c: Likewise.
	* dwarf2loc.c: Likewise.
	* dwarf2read.c: Likewise.
	* environ.c: Likewise.
	* exec.c: Likewise.
	* f-exp.y: Likewise.
	* findcmd.c: Likewise.
	* ft32-tdep.c: Likewise.
	* gcore.c: Likewise.
	* hppa-tdep.c: Likewise.
	* i386-darwin-tdep.c: Likewise.
	* i386-tdep.c: Likewise.
	* linux-thread-db.c: Likewise.
	* lm32-tdep.c: Likewise.
	* m32r-tdep.c: Likewise.
	* m88k-tdep.c: Likewise.
	* memrange.c: Likewise.
	* minidebug.c: Likewise.
	* mips-tdep.c: Likewise.
	* moxie-tdep.c: Likewise.
	* nds32-tdep.c: Likewise.
	* nios2-tdep.c: Likewise.
	* nto-procfs.c: Likewise.
	* parse.c: Likewise.
	* ppc-sysv-tdep.c: Likewise.
	* probe.c: Likewise.
	* record-btrace.c: Likewise.
	* remote.c: Likewise.
	* rs6000-tdep.c: Likewise.
	* rx-tdep.c: Likewise.
	* s390-linux-nat.c: Likewise.
	* s390-linux-tdep.c: Likewise.
	* ser-tcp.c: Likewise.
	* sh-tdep.c: Likewise.
	* sh64-tdep.c: Likewise.
	* source.c: Likewise.
	* sparc-tdep.c: Likewise.
	* symfile.c: Likewise.
	* target-memory.c: Likewise.
	* target.c: Likewise.
	* tic6x-tdep.c: Likewise.
	* tilegx-tdep.c: Likewise.
	* tracefile-tfile.c: Likewise.
	* tracepoint.c: Likewise.
	* valprint.c: Likewise.
	* value.c: Likewise.
	* xtensa-tdep.c: Likewise.
	* cli/cli-cmds.c: Likewise.
	* compile/compile-object-load.c: Likewise.

1 files changed, 6 insertions, 5 deletions

diff --git a/gdb/valprint.c b/gdb/valprint.c
index 4a1ee13f0d..93607e5a1b 100644
--- a/gdb/valprint.c
+++ b/gdb/valprint.c
@@ -36,6 +36,7 @@
 #include "charset.h"
 #include "typeprint.h"
 #include <ctype.h>
+#include <algorithm>
 
 /* Maximum number of wchars returned from wchar_iterate.  */
 #define MAX_WCHARS 4
@@ -2178,7 +2179,7 @@ read_string (CORE_ADDR addr, int len, int width, unsigned int fetchlimit,
     {
       /* We want fetchlimit chars, so we might as well read them all in
 	 one operation.  */
-      unsigned int fetchlen = min (len, fetchlimit);
+      unsigned int fetchlen = std::min ((unsigned) len, fetchlimit);
 
       *buffer = (gdb_byte *) xmalloc (fetchlen * width);
       bufptr = *buffer;
@@ -2202,12 +2203,12 @@ read_string (CORE_ADDR addr, int len, int width, unsigned int fetchlimit,
 	 So we choose the minimum of 8 and fetchlimit.  We used to use 200
 	 instead of 8 but 200 is way too big for remote debugging over a
 	  serial line.  */
-      chunksize = min (8, fetchlimit);
+      chunksize = std::min (8u, fetchlimit);
 
       do
 	{
 	  QUIT;
-	  nfetch = min (chunksize, fetchlimit - bufsize);
+	  nfetch = std::min ((unsigned long) chunksize, fetchlimit - bufsize);
 
 	  if (*buffer == NULL)
 	    *buffer = (gdb_byte *) xmalloc (nfetch * width);
@@ -2864,8 +2865,8 @@ val_print_string (struct type *elttype, const char *encoding,
      because finding the null byte (or available memory) is what actually
      limits the fetch.  */
 
-  fetchlimit = (len == -1 ? options->print_max : min (len,
-						      options->print_max));
+  fetchlimit = (len == -1 ? options->print_max : std::min ((unsigned) len,
+							   options->print_max));
 
   err = read_string (addr, len, width, fetchlimit, byte_order,
 		     &buffer, &bytes_read);