*: use std::numeric_limits

src/QueueCommands.cxx

@@ -35,7 +35,7 @@
 #include "util/Error.hxx"
 #include "fs/Path.hxx"
 
-#include <glib.h>
+#include <limits>
 
 #include <string.h>
 
@@ -212,7 +212,7 @@ handle_plchangesposid(Client *client, gcc_unused int argc, char *argv[])
 enum command_return
 handle_playlistinfo(Client *client, int argc, char *argv[])
 {
-	unsigned start = 0, end = G_MAXUINT;
+	unsigned start = 0, end = std::numeric_limits<unsigned>::max();
 	bool ret;
 
 	if (argc == 2 && !check_range(client, &start, &end, argv[1]))
@@ -239,7 +239,8 @@ handle_playlistid(Client *client, int argc, char *argv[])
 			return print_playlist_result(client,
 						     PLAYLIST_RESULT_NO_SUCH_SONG);
 	} else {
-		playlist_print_info(client, &client->playlist, 0, G_MAXUINT);
+		playlist_print_info(client, &client->playlist,
+				    0, std::numeric_limits<unsigned>::max());
 	}
 
 	return COMMAND_RETURN_OK;

src/Timer.cxx

@@ -24,6 +24,8 @@
 
 #include <glib.h>
 
+#include <limits>
+
 #include <assert.h>
 #include <limits.h>
 #include <stddef.h>
@@ -62,8 +64,8 @@ unsigned Timer::GetDelay() const
 	if (delay < 0)
 		return 0;
 
-	if (delay > G_MAXINT)
-		delay = G_MAXINT;
+	if (delay > std::numeric_limits<int>::max())
+		delay = std::numeric_limits<int>::max();
 
 	return delay;
 }

src/protocol/ArgParser.cxx

@@ -21,7 +21,8 @@
 #include "ArgParser.hxx"
 #include "Result.hxx"
 
-#include <glib.h>
+#include <limits>
+
 #include <stdlib.h>
 
 bool
@@ -51,13 +52,12 @@ check_int(Client *client, int *value_r, const char *s)
 		return false;
 	}
 
-#if G_MAXLONG > G_MAXINT
-	if (value < G_MININT || value > G_MAXINT) {
+	if (value < std::numeric_limits<int>::min() ||
+	    value > std::numeric_limits<int>::max()) {
 		command_error(client, ACK_ERROR_ARG,
 			      "Number too large: %s", s);
 		return false;
 	}
-#endif
 
 	*value_r = (int)value;
 	return true;
@@ -81,7 +81,7 @@ check_range(Client *client, unsigned *value_r1, unsigned *value_r2,
 		/* compatibility with older MPD versions: specifying
 		   "-1" makes MPD display the whole list */
 		*value_r1 = 0;
-		*value_r2 = G_MAXUINT;
+		*value_r2 = std::numeric_limits<unsigned>::max();
 		return true;
 	}
 
@@ -91,13 +91,11 @@ check_range(Client *client, unsigned *value_r1, unsigned *value_r2,
 		return false;
 	}
 
-#if G_MAXLONG > G_MAXUINT
-	if (value > G_MAXUINT) {
+	if (unsigned(value) > std::numeric_limits<unsigned>::max()) {
 		command_error(client, ACK_ERROR_ARG,
 			      "Number too large: %s", s);
 		return false;
 	}
-#endif
 
 	*value_r1 = (unsigned)value;
 
@@ -110,7 +108,7 @@ check_range(Client *client, unsigned *value_r1, unsigned *value_r2,
 		}
 
 		if (test == test2)
-			value = G_MAXUINT;
+			value = std::numeric_limits<unsigned>::max();
 
 		if (value < 0) {
 			command_error(client, ACK_ERROR_ARG,
@@ -118,13 +116,12 @@ check_range(Client *client, unsigned *value_r1, unsigned *value_r2,
 			return false;
 		}
 
-#if G_MAXLONG > G_MAXUINT
-		if (value > G_MAXUINT) {
+		if (unsigned(value) > std::numeric_limits<unsigned>::max()) {
 			command_error(client, ACK_ERROR_ARG,
 				      "Number too large: %s", s);
 			return false;
 		}
-#endif
+
 		*value_r2 = (unsigned)value;
 	} else {
 		*value_r2 = (unsigned)value + 1;
@@ -146,7 +143,7 @@ check_unsigned(Client *client, unsigned *value_r, const char *s)
 		return false;
 	}
 
-	if (value > G_MAXUINT) {
+	if (value > std::numeric_limits<unsigned>::max()) {
 		command_error(client, ACK_ERROR_ARG,
 			      "Number too large: %s", s);
 		return false;

src/tag/Aiff.cxx

@@ -23,7 +23,7 @@
 #include "system/ByteOrder.hxx"
 #include "Log.hxx"
 
-#include <glib.h>
+#include <limits>
 
 #include <stdint.h>
 #include <sys/types.h>
@@ -81,7 +81,7 @@ aiff_seek_id3(FILE *file)
 			return 0;
 
 		size = FromBE32(chunk.size);
-		if (size > G_MAXINT32)
+		if (size > unsigned(std::numeric_limits<int>::max()))
 			/* too dangerous, bail out: possible integer
 			   underflow when casting to off_t */
 			return 0;

src/tag/Riff.cxx

@@ -23,12 +23,11 @@
 #include "system/ByteOrder.hxx"
 #include "Log.hxx"
 
-#include <glib.h>
+#include <limits>
 
 #include <stdint.h>
 #include <sys/types.h>
 #include <sys/stat.h>
-#include <unistd.h>
 #include <string.h>
 
 static constexpr Domain riff_domain("riff");
@@ -79,7 +78,7 @@ riff_seek_id3(FILE *file)
 			return 0;
 
 		size = FromLE32(chunk.size);
-		if (size > G_MAXINT32)
+		if (size > size_t(std::numeric_limits<int>::max()))
 			/* too dangerous, bail out: possible integer
 			   underflow when casting to off_t */
 			return 0;