From f7a8a193c2e523b2e670d385244cd2d830453938 Mon Sep 17 00:00:00 2001
From: pommicket <pommicket@gmail.com>
Date: Mon, 14 Feb 2022 11:39:33 -0500
Subject: snprintf now working! (fixed problem will calls inside calls)

---
 05/codegen.b     |  4 ++--
 05/main.c        |  8 ++++----
 05/parse.b       |  9 +++++++++
 05/stdc_common.h |  6 ++++++
 05/stdio.h       | 25 +++++++++++++++++++++++--
 5 files changed, 44 insertions(+), 8 deletions(-)

diff --git a/05/codegen.b b/05/codegen.b
index cd70a22..0220450 100644
--- a/05/codegen.b
+++ b/05/codegen.b
@@ -2432,9 +2432,8 @@ function generate_push_expression
 		return expr
 	:generate_call
 		expr += 8
-		global 4000 expr_arg_ptrs_dat
 		local expr_arg_ptrs
-		expr_arg_ptrs = &expr_arg_ptrs_dat
+		expr_arg_ptrs = malloc(4000)
 		local arg_idx
 		local call_function
 		local return_val_size
@@ -2475,6 +2474,7 @@ function generate_push_expression
 			arg_idx -= 1
 			goto push_args_loop
 		:push_args_loop_end
+		free(expr_arg_ptrs)
 		
 		; create space on stack for return value
 		emit_sub_rsp_imm32(return_val_size)
diff --git a/05/main.c b/05/main.c
index 7503a10..5a25d19 100644
--- a/05/main.c
+++ b/05/main.c
@@ -2,9 +2,9 @@
 
 int main(int argc, char **argv) {
 	char buf[200] = {0};
-	sprintf(buf, "Hello, %d %.2f %g %s %p\n", 187, 77.3, 349e12, "Wow!", "yea");
- //	snprintf(buf, 200, "Hello\n");  //<- NOT WORKING
-	write(1, buf, sizeof buf);
-	return *buf;
+	snprintf(buf, sizeof buf, "Hello, %d %.2f %g %s %p\n", 187, 77.3, 349e12, "Wow!", "yea");
+/* 	write(1, buf, sizeof buf); */
+	printf("%s\n",buf);
+	return 0;
 }
 
diff --git a/05/parse.b b/05/parse.b
index 93de88e..15851d9 100644
--- a/05/parse.b
+++ b/05/parse.b
@@ -522,7 +522,11 @@ function parse_statement
 		token += 16
 		out += 8
 		*8out = expressions_end
+		c = expressions_end + 4
 		expressions_end = parse_expression(token, p, expressions_end)
+		c = types + *4c
+		if *1c > TYPE_UNSIGNED_LONG goto bad_switch_type
+		
 		token = p + 16
 		out += 8
 		
@@ -542,6 +546,11 @@ function parse_statement
 		:str_switch_no_lparen
 			string No ( after switch.
 			byte 0
+		:bad_switch_type
+			token_error(token, .str_bad_switch_type)
+		:str_bad_switch_type
+			string The expression in a switch statement must have an integer type.
+			byte 0
 	:stmt_while
 		write_statement_header(out, STATEMENT_WHILE, token)		
 		token += 16
diff --git a/05/stdc_common.h b/05/stdc_common.h
index ad56b4d..16ddcdb 100644
--- a/05/stdc_common.h
+++ b/05/stdc_common.h
@@ -63,4 +63,10 @@ long write(int fd, void *buf, size_t count) {
 	__syscall(1, fd, buf, count, 0, 0, 0);
 }
 
+size_t strlen(char *s) {
+	char *t = s;
+	while (*t) ++t;
+	return t - s;
+}
+
 #endif // _STDC_COMMON_H
diff --git a/05/stdio.h b/05/stdio.h
index bd1c8aa..91f1169 100644
--- a/05/stdio.h
+++ b/05/stdio.h
@@ -1,6 +1,11 @@
+#ifndef _STDIO_H
+#define _STDIO_H
+
 #include <stdc_common.h>
 #include <stdarg.h>
 
+int printf(const char *, ...);
+
 /* ---  snprintf, adapted from github.com/nothings/stb   stb_sprintf.h */
 
 #ifndef STB_SPRINTF_MIN
@@ -1113,6 +1118,7 @@ typedef struct stbsp__context {
 static char *stbsp__clamp_callback(const char *buf, void *user, int len)
 {
    stbsp__context *c = (stbsp__context *)user;
+      
    c->length += len;
 
    if (len > c->count)
@@ -1150,7 +1156,6 @@ char * stbsp__count_clamp_callback( const char * buf, void * user, int len )
 int vsnprintf( char * buf, int count, char const * fmt, va_list va )
 {
    stbsp__context c;
-
    if ( (count == 0) && !buf )
    {
       c.length = 0;
@@ -1165,7 +1170,7 @@ int vsnprintf( char * buf, int count, char const * fmt, va_list va )
       c.count = count;
       c.length = 0;
 
-      STB_SPRINTF_DECORATE( vsprintfcb )( stbsp__clamp_callback, &c, stbsp__clamp_callback(0,&c,0), fmt, va );
+      __vsprintfcb( stbsp__clamp_callback, &c, stbsp__clamp_callback(0,&c,0), fmt, va );
 
       // zero-terminate
       l = (int)( c.buf - buf );
@@ -1545,3 +1550,19 @@ static int32_t stbsp__real_to_str(char const **start, uint32_t *len, char *out,
 #undef stbsp__ddmultlos
 #undef STBSP__SPECIAL
 #undef STBSP__COPYFP
+
+int __fd_puts(int fd, const char *s) {
+	return write(fd, s, strlen(s));
+}
+
+int printf(const char *fmt, ...) {
+	// @TODO: use a callback with __vsnprintfcb
+	va_list args;
+	char buf[2000];
+	va_start(args, fmt);
+	vsprintf(buf, fmt, args);
+	va_end(args);
+	return __fd_puts(1, buf);
+}
+
+#endif // _STDIO_H
-- 
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