More const and signed correctness. Warnings now fit on one page!

fishd.cpp

@@ -390,7 +390,7 @@ static void daemonize()
 /**
    Get environment variable value. The resulting string needs to be free'd.
 */
-static wchar_t *fishd_env_get( wchar_t *key )
+static wchar_t *fishd_env_get( const wchar_t *key )
 {
 	char *nres, *nkey;
 	wchar_t *res;

path.cpp

@@ -130,8 +130,6 @@ bool path_get_path_string(const wcstring &cmd_str, wcstring &output, const env_v
 
 wchar_t *path_get_path( void *context, const wchar_t *cmd )
 {
-	const wchar_t *path;
-
 	int err = ENOENT;
 	
 	CHECK( cmd, 0 );

reader.cpp

@@ -464,7 +464,7 @@ static void reader_kill( wchar_t *begin, int length, int mode, int newv )
 		free( old );
 	}
 
-	if( data->buff_pos > (begin-data->buff) )
+	if( data->buff_pos > (size_t)(begin-data->buff) )
 	{
 		data->buff_pos = maxi( begin-data->buff, data->buff_pos-length );
 	}
@@ -1292,9 +1292,7 @@ static void reader_flash()
 {
 	struct timespec pollint;
 
-	int i;
+	for( size_t i=0; i<data->buff_pos; i++ )
-	
-	for( i=0; i<data->buff_pos; i++ )
 	{
 		data->color[i] = HIGHLIGHT_SEARCH_MATCH<<16;
 	}
@@ -1976,7 +1974,7 @@ static void handle_token_history( int forward, int reset )
 */
 static void move_word( int dir, int erase, int newv )
 {
-	int end_buff_pos=data->buff_pos;
+	size_t end_buff_pos=data->buff_pos;
 	int step = dir?1:-1;
 
 	/*

screen.cpp

@@ -109,7 +109,7 @@ static int next_tab_stop( int in )
 static int calc_prompt_width( const wchar_t *prompt )
 {
 	int res = 0;
-	int j, k;
+	size_t j, k;
 
 	for( j=0; prompt[j]; j++ )
 	{
@@ -118,7 +118,7 @@ static int calc_prompt_width( const wchar_t *prompt )
 			/*
 			  This is the start of an escape code. Try to guess it's width.
 			*/
-			int l;
+			size_t p;
 			int len=0;
 			int found = 0;
 			
@@ -164,14 +164,14 @@ static int calc_prompt_width( const wchar_t *prompt )
 				}
 			;
 
-			for( l=0; l < (sizeof(esc)/sizeof(char *)) && !found; l++ )
+			for( p=0; p < (sizeof(esc)/sizeof(char *)) && !found; p++ )
 			{
-				if( !esc[l] )
+				if( !esc[p] )
 					continue;
 
 				for( k=0; k<8; k++ )
 				{
-					len = try_sequence( tparm(esc[l],k), &prompt[j] );
+					len = try_sequence( tparm(esc[p],k), &prompt[j] );
 					if( len )
 					{
 						j += (len-1);
@@ -181,17 +181,17 @@ static int calc_prompt_width( const wchar_t *prompt )
 				}
 			}
 
-			for( l=0; l < (sizeof(esc2)/sizeof(char *)) && !found; l++ )
+			for( p=0; p < (sizeof(esc2)/sizeof(char *)) && !found; p++ )
 			{
-				if( !esc2[l] )
+				if( !esc2[p] )
 					continue;
 				/*
 				  Test both padded and unpadded version, just to
 				  be safe. Most versions of tparm don't actually
 				  seem to do anything these days.
 				*/
-				len = maxi( try_sequence( tparm(esc2[l]), &prompt[j] ),
+				len = maxi( try_sequence( tparm(esc2[p]), &prompt[j] ),
-					    try_sequence( esc2[l], &prompt[j] ));
+					    try_sequence( esc2[p], &prompt[j] ));
 					
 				if( len )
 				{
@@ -590,7 +590,7 @@ static void s_write_str( buffer_t *b, const wchar_t *s )
 */
 static void s_update( screen_t *scr, const wchar_t *prompt )
 {
-	int i, j, k;
+	size_t i, j;
 	int prompt_width = calc_prompt_width( prompt );
 	int current_width=0;
 	int screen_width = common_get_width();
@@ -662,7 +662,7 @@ static void s_update( screen_t *scr, const wchar_t *prompt )
                     
                     s_line.create_entry(current_width).text = o;
                     s_line.create_entry(current_width).color = o_c;
-					for( k=1; k<wcwidth(o); k++ )
+					for( int k=1; k<wcwidth(o); k++ )
                         s_line.create_entry(current_width+k).text = L'\0';
 						
 				}

tokenizer.cpp

@@ -507,7 +507,7 @@ static int my_iswspace( wchar_t c )
 
 const wchar_t *tok_get_desc( int type )
 {
-	if( type < 0 || type >= sizeof( tok_desc ) )
+	if( type < 0 || (size_t)type >= sizeof( tok_desc ) )
 	{
 		return _(L"Invalid token type");
 	}

tokenizer.h

@@ -74,7 +74,7 @@ typedef struct
 	/** Type of last token*/
 	int last_type;
 	/** Length of last token*/
-	int last_len;
+	size_t last_len;
 	/** Offset of last token*/
 	int last_pos;
 	/** Whether there are more tokens*/

util.cpp

@@ -108,7 +108,6 @@ void hash_init2( hash_table_t *h,
 				 int (*compare_func)(void *key1, void *key2),
 				 size_t capacity)
 {
-	int i;
 	size_t sz = 32;
 	while( sz < (capacity*4/3) )
 		sz*=2;
@@ -127,7 +126,7 @@ void hash_init2( hash_table_t *h,
 	}
 	
 	h->size = sz;
-	for( i=0; i< sz; i++ )
+	for( size_t i=0; i< sz; i++ )
 		h->arr[i].key = 0;
 	h->count=0;
 	h->hash_func = hash_func;

wildcard.cpp

@@ -1087,10 +1087,10 @@ static int wildcard_expand_internal( const wchar_t *wc,
 							*/
 							if( whole_match )
 							{
-								wchar_t *new_wc = L"";
+								const wchar_t *new_wc = L"";
 								if( wc_end )
 								{
-									new_wc=const_cast<wchar_t*>(wc_end+1);
+									new_wc=wc_end+1;
 									/*
 									  Accept multiple '/' as a single direcotry separator
 									*/