deprecated os.h and removed scanf from istream as it can't return the end position

src/strstream.c

@@ -9,6 +9,12 @@
 #include <math.h> // HUGE_VALF
 #include "tracelog.h"
 
+#if defined(_WIN32) && defined(__TINYC__)
+#define strtoull _strtoui64
+#define strtoll _strtoi64
+#define strtof strtod
+#endif
+
 /* == INPUT STREAM ============================================ */
 
 str_istream_t istrInit(const char *str) {
@@ -22,17 +28,6 @@ str_istream_t istrInitLen(const char *str, usize len) {
     return res;
 }
 
-void istrScanf(str_istream_t *ctx, const char *fmt, ...) {
-    va_list va;
-    va_start(va, fmt);
-    istrScanfV(ctx, fmt, va);
-    va_end(va);
-}
-
-void istrScanfV(str_istream_t *ctx, const char *fmt, va_list args) {
-    vsscanf(ctx->cur, fmt, args);
-}
-
 char istrGet(str_istream_t *ctx) {
     return *ctx->cur++;
 }

src/strstream.h

@@ -23,9 +23,6 @@ typedef struct {
 str_istream_t istrInit(const char *str);
 str_istream_t istrInitLen(const char *str, usize len);
 
-void istrScanf(str_istream_t *ctx, const char *fmt, ...);
-void istrScanfV(str_istream_t *ctx, const char *fmt, va_list args);
-
 // get the current character and advance
 char istrGet(str_istream_t *ctx);
 // get the current character but don't advance