use 'const char *' for filename

mpictor · mpictor · commit 0b16a413f739 · 2014-02-28T21:55:43.000-05:00
diff --git a/include/express/alg.h b/include/express/alg.h
@@ -69,7 +69,7 @@ struct tag {
 
 /** location of fulltext of algorithm in source file */
 struct FullText {
-    char * filename;
+    const char * filename;
     unsigned int start, end;
 };
 
diff --git a/include/express/error.h b/include/express/error.h
@@ -83,7 +83,7 @@ typedef struct Error_Warning_ {
 /********************/
 
 extern SC_EXPRESS_EXPORT bool __ERROR_buffer_errors;
-extern SC_EXPRESS_EXPORT char * current_filename;
+extern SC_EXPRESS_EXPORT const char * current_filename;
 
 /* flag to remember whether non-warning errors have occurred */
 extern SC_EXPRESS_EXPORT bool ERRORoccurred;
diff --git a/include/express/lexact.h b/include/express/lexact.h
@@ -58,7 +58,7 @@ typedef struct Scan_Buffer {
 #endif
     char  * savedPos;
     FILE  * file;
-    char  *  filename;
+    const char  *  filename;
     bool readEof;
     int lineno;
     int bol;
diff --git a/include/express/symbol.h b/include/express/symbol.h
@@ -59,7 +59,7 @@ typedef struct Symbol_ Symbol;
 
 struct Symbol_ {
     char * name;
-    char * filename;
+    const char * filename;
     int line;
     char resolved;
 };
@@ -89,6 +89,6 @@ extern SC_EXPRESS_EXPORT struct freelist_head SYMBOL_fl;
 /***********************/
 
 extern SC_EXPRESS_EXPORT void SYMBOLinitialize PROTO( ( void ) );
-SC_EXPRESS_EXPORT Symbol * SYMBOLcreate( char * name, int line, char * filename );
+SC_EXPRESS_EXPORT Symbol * SYMBOLcreate( char * name, int line, const char * filename );
 
 #endif    /*  SYMBOL_H  */
diff --git a/src/express/error.c b/src/express/error.c
@@ -67,7 +67,7 @@
 
 
 bool __ERROR_buffer_errors = false;
-char * current_filename = "stdin";
+const char * current_filename = "stdin";
 
 /* flag to remember whether non-warning errors have occurred */
 bool ERRORoccurred = false;
diff --git a/src/express/symbol.c b/src/express/symbol.c
@@ -42,7 +42,7 @@ void SYMBOLinitialize( void ) {
     MEMinitialize( &SYMBOL_fl, sizeof( struct Symbol_ ), 100, 100 );
 }
 
-Symbol * SYMBOLcreate( char * name, int line, char * filename ) {
+Symbol * SYMBOLcreate( char * name, int line, const char * filename ) {
     Symbol * sym = SYMBOL_new();
     sym->name = name;
     sym->line = line;

Original file line number	Diff line number	Diff line change
`@@ -42,7 +42,7 @@ void SYMBOLinitialize( void ) {`
`42`	`42`	`MEMinitialize( &SYMBOL_fl, sizeof( struct Symbol_ ), 100, 100 );`
`43`	`43`	`}`
`44`	`44`
`45`		`-Symbol * SYMBOLcreate( char * name, int line, char * filename ) {`
	`45`	`+Symbol * SYMBOLcreate( char * name, int line, const char * filename ) {`
`46`	`46`	`Symbol * sym = SYMBOL_new();`
`47`	`47`	`sym->name = name;`
`48`	`48`	`sym->line = line;`