From 1d2a6f21294f8390b683e4e097cb49210ed832d1 Mon Sep 17 00:00:00 2001
From: johannst <johannes.stoelp@gmail.com>
Date: Fri, 26 Mar 2021 23:17:46 +0100
Subject: Added dyn allocator + syscall wrappers + minor fixes.

---
 lib/src/fmt.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'lib/src/fmt.c')

diff --git a/lib/src/fmt.c b/lib/src/fmt.c
index be1ca3a..b0840de 100644
--- a/lib/src/fmt.c
+++ b/lib/src/fmt.c
@@ -11,7 +11,7 @@ static const char* num2dec(char* buf, unsigned long len, unsigned long long num)
     }
 
     while (num > 0 && pbuf != buf) {
-        char d = (num % 10) + '0';
+      char d = (char)(num % 10) + '0';
         *(--pbuf) = d;
         num /= 10;
     }
@@ -28,7 +28,7 @@ static const char* num2hex(char* buf, unsigned long len, unsigned long long num)
 
     while (num > 0 && pbuf != buf) {
         char d = (num & 0xf);
-        *(--pbuf) = d + (d > 9 ? 'a' - 10 : '0');
+        *(--pbuf) = (char)(d + (d > 9 ? 'a' - 10 : '0'));
         num >>= 4;
     }
     return pbuf;
@@ -73,7 +73,7 @@ int vfmt(char* buf, unsigned long len, const char* fmt, va_list ap) {
                     val *= -1;
                     put('-');
                 }
-                const char* ptr = num2dec(scratch, sizeof(scratch), val);
+                const char* ptr = num2dec(scratch, sizeof(scratch), (unsigned long)val);
                 puts(ptr);
             } break;
             case 'x': {
-- 
cgit v1.2.3


From 1bcaa7aceefad99c7bda9cb7bf6fcc5b48b53a75 Mon Sep 17 00:00:00 2001
From: johannst <johannes.stoelp@gmail.com>
Date: Sat, 17 Apr 2021 23:41:52 +0200
Subject: fmt: add support for %c

---
 lib/src/fmt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'lib/src/fmt.c')

diff --git a/lib/src/fmt.c b/lib/src/fmt.c
index b0840de..56d95ed 100644
--- a/lib/src/fmt.c
+++ b/lib/src/fmt.c
@@ -11,7 +11,7 @@ static const char* num2dec(char* buf, unsigned long len, unsigned long long num)
     }
 
     while (num > 0 && pbuf != buf) {
-      char d = (char)(num % 10) + '0';
+        char d = (char)(num % 10) + '0';
         *(--pbuf) = d;
         num /= 10;
     }
@@ -81,6 +81,10 @@ int vfmt(char* buf, unsigned long len, const char* fmt, va_list ap) {
                 const char* ptr = num2hex(scratch, sizeof(scratch), val);
                 puts(ptr);
             } break;
+            case 'c': {
+                char c = va_arg(ap, int);  // By C standard, value passed to varg smaller than `sizeof(int)` will be converted to int.
+                put(c);
+            } break;
             case 's': {
                 const char* ptr = va_arg(ap, const char*);
                 puts(ptr);
-- 
cgit v1.2.3


From 3155439c1a96f1964aaee799b008331d0b362db3 Mon Sep 17 00:00:00 2001
From: johannst <johannes.stoelp@gmail.com>
Date: Mon, 19 Apr 2021 21:50:29 +0200
Subject: added tests for fmt() char, long nums

---
 lib/src/fmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/src/fmt.c')

diff --git a/lib/src/fmt.c b/lib/src/fmt.c
index 56d95ed..24ddd98 100644
--- a/lib/src/fmt.c
+++ b/lib/src/fmt.c
@@ -51,7 +51,7 @@ int vfmt(char* buf, unsigned long len, const char* fmt, va_list ap) {
         put(*s++); \
     }
 
-    char scratch[16];
+    char scratch[32];
     int l_cnt = 0;
 
     while (*fmt) {
-- 
cgit v1.2.3