From e342992a135e68d10716d9da920cb3af62a7d750 Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Thu, 4 Sep 2025 22:49:54 +0900
Subject: feat: use <stdio.h> in ducc sources

---
 src/cli.c        |  1 +
 src/codegen.h    |  1 +
 src/common.c     |  2 ++
 src/io.c         |  1 +
 src/json.c       |  1 +
 src/parse.c      |  1 +
 src/preprocess.c |  1 +
 src/std.h        | 18 ------------------
 src/sys.c        |  4 ++++
 src/token.c      |  1 +
 10 files changed, 13 insertions(+), 18 deletions(-)

diff --git a/src/cli.c b/src/cli.c
index c5649f0..893c7f2 100644
--- a/src/cli.c
+++ b/src/cli.c
@@ -1,4 +1,5 @@
 #include "cli.h"
+#include <stdio.h>
 #include "common.h"
 #include "version.h"
 
diff --git a/src/codegen.h b/src/codegen.h
index 95ec069..6a75179 100644
--- a/src/codegen.h
+++ b/src/codegen.h
@@ -1,6 +1,7 @@
 #ifndef DUCC_CODEGEN_H
 #define DUCC_CODEGEN_H
 
+#include <stdio.h>
 #include "ast.h"
 
 void codegen(Program* prog, FILE* out);
diff --git a/src/common.c b/src/common.c
index ab71851..02bb712 100644
--- a/src/common.c
+++ b/src/common.c
@@ -1,4 +1,6 @@
 #include "common.h"
+#include <stdarg.h>
+#include <stdio.h>
 
 void fatal_error(const char* msg, ...) {
     va_list args;
diff --git a/src/io.c b/src/io.c
index c2a53de..1d03e62 100644
--- a/src/io.c
+++ b/src/io.c
@@ -1,4 +1,5 @@
 #include "io.h"
+#include <stdio.h>
 #include "common.h"
 #include "json.h"
 
diff --git a/src/json.c b/src/json.c
index 8b6dc74..a1524aa 100644
--- a/src/json.c
+++ b/src/json.c
@@ -1,4 +1,5 @@
 #include "json.h"
+#include <stdio.h>
 #include "common.h"
 
 struct JsonBuilder {
diff --git a/src/parse.c b/src/parse.c
index 07259ad..6403925 100644
--- a/src/parse.c
+++ b/src/parse.c
@@ -1,4 +1,5 @@
 #include "parse.h"
+#include <stdio.h>
 #include "common.h"
 #include "tokenize.h"
 
diff --git a/src/preprocess.c b/src/preprocess.c
index 725437e..1d5a42a 100644
--- a/src/preprocess.c
+++ b/src/preprocess.c
@@ -1,4 +1,5 @@
 #include "preprocess.h"
+#include <stdio.h>
 #include "common.h"
 #include "parse.h"
 #include "sys.h"
diff --git a/src/std.h b/src/std.h
index c2d7b26..5f31191 100644
--- a/src/std.h
+++ b/src/std.h
@@ -3,19 +3,9 @@
 
 #include <stddef.h>
 
-typedef struct FILE FILE;
-
-extern FILE* stdin;
-extern FILE* stdout;
-extern FILE* stderr;
-
 int atoi(const char*);
 void* calloc(size_t, size_t);
 void exit(int);
-int fclose(FILE*);
-int fprintf(FILE*, const char*, ...);
-char* fgets(char*, int, FILE*);
-FILE* fopen(const char*, const char*);
 int getchar();
 int isalnum(int);
 int isalpha(int);
@@ -25,9 +15,7 @@ void* memcpy(void*, const void*, size_t);
 void* memmove(void*, const void*, size_t);
 void* memset(void*, int, size_t);
 int mkstemps(char*, int);
-int printf(const char*, ...);
 void* realloc(void*, size_t);
-int sprintf(char*, const char*, ...);
 int strcmp(const char*, const char*);
 size_t strlen(const char*);
 int strncmp(const char*, const char*, size_t);
@@ -45,18 +33,12 @@ int system(const char*);
         } \
     } while (0)
 
-#include <stdarg.h>
-
-int vfprintf(FILE*, const char*, va_list);
-
 #define F_OK 0
 #define R_OK 4
 int access(const char*, int);
 
 #define PATH_MAX 4096
 
-typedef long ssize_t;
-ssize_t readlink(const char*, char*, size_t);
 char* dirname(char*);
 
 #endif
diff --git a/src/sys.c b/src/sys.c
index 453c973..a4a531c 100644
--- a/src/sys.c
+++ b/src/sys.c
@@ -1,6 +1,10 @@
 #include "sys.h"
 #include "std.h"
 
+// TODO: #inclue some header.
+typedef long ssize_t;
+ssize_t readlink(const char*, char*, size_t);
+
 static char* get_self_path() {
     char* buf = calloc(PATH_MAX, sizeof(char));
     ssize_t len = readlink("/proc/self/exe", buf, PATH_MAX - 1);
diff --git a/src/token.c b/src/token.c
index 7b3efbc..45ef2cd 100644
--- a/src/token.c
+++ b/src/token.c
@@ -1,4 +1,5 @@
 #include "token.h"
+#include <stdio.h>
 #include "common.h"
 #include "json.h"
 
-- 
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