Skip to content

Fix06/seg fault #16

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
jaeunda merged 4 commits into from
Nov 16, 2025
Merged

Fix06/seg fault #16

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
3656340
fix: add YYSTYPE definition
jaeunda Nov 16, 2025
6c4e1ba
build(Makefile): add gdb option #15
jaeunda Nov 16, 2025
c5d24ff
fix: fix seg fault #15
jaeunda Nov 16, 2025
692a6d9
fix: fix func.h to resolve redeclaration err
jaeunda Nov 16, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion 06-c-syntax-analyzer/Makefile
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
a.out: yacc lex
gcc y.tab.c lex.yy.c print.c main.c -w
gcc -g y.tab.c lex.yy.c print.c main.c -w
yacc: yacc.y
yacc -d yacc.y
lex: lex.l
Expand Down
6 changes: 4 additions & 2 deletions 06-c-syntax-analyzer/func.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -316,7 +316,7 @@ A_ID *setFunctionDeclaratorSpecifier(A_ID *id, A_SPECIFIER *p) {
setDefaultSpecifier(p);

// check function identifier immediately before '('
if (id->type->kind != T_FUNC) {
if (id->type == 0 || id->type->kind != T_FUNC) {
syntax_error(21, NULL);
return (id);
} else {
Expand Down Expand Up @@ -453,7 +453,8 @@ A_TYPE *setTypeStructOrEnumIdentifier(T_KIND k, char *s, ID_KIND kk) {
a = searchIdentifierAtCurrentLevel(s, current_id);
if (a)
if (a->kind == kk && a->type->kind == k)
syntax_error(12, s);
if (a->type->field)
syntax_error(12, s);
else
return (a->type);
else
Expand Down Expand Up @@ -507,6 +508,7 @@ BOOLEAN isPointerOrArrayType(A_TYPE *t) {
return (FALSE);
}


void initialize() {
// primitive data types 노드 생성
int_type = setTypeAndKindOfDeclarator(makeType(T_ENUM), ID_TYPE, makeIdentifier("int"));
Expand Down
11 changes: 7 additions & 4 deletions 06-c-syntax-analyzer/lex.l
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -5,10 +5,13 @@ line [\n]
ws {delim}+

%{
#define YYSTYPE_IS_DECLARED 1
#define YYSTYPE long long

#include "y.tab.h"
#include "type.h"

extern int yylval;
extern YYSTYPE yylval;
extern int line_no;
extern A_ID *current_id;

Expand Down Expand Up @@ -70,9 +73,9 @@ while { return(WHILE_SYM); }
"\=" { return(ASSIGN); }

{digit}+ { yylval = atoi(yytext); return(INTEGER_CONSTANT); }
{digit}+\.{digit}+ { yylval = (int)makeString(yytext); return(FLOAT_CONSTANT); }
{digit}+\.{digit}+ { yylval = (YYSTYPE)makeString(yytext); return(FLOAT_CONSTANT); }
{letter}({letter}|{digit})* { return(checkIdentifier(yytext)); }
\"([^"\n]|\\["\n])*\" { yylval = (int)makeString(yytext); return(STRING_LITERAL); }
\"([^"\n]|\\["\n])*\" { yylval = (YYSTYPE)makeString(yytext); return(STRING_LITERAL); }
\'([^'\n]|\'\')\' { yylval = *(yytext+1); return(CHARACTER_CONSTANT); }
"//"[^\n]* { }

Expand All @@ -93,7 +96,7 @@ int checkIdentifier(char *s){
id = id->prev;
}
if (!id){
yylval = (int)makeString(s);
yylval = (YYSTYPE)makeString(s);
return(IDENTIFIER);
} else if (id->kind == ID_TYPE){
yylval = id->type;
Expand Down
Loading