`ty_font_width()` takes in a const font ptr

2 files changed, 2 insertions, 2 deletions

diff --git a/teensy/teensy.h b/teensy/teensy.h
index 0e36a6e..2e172c1 100644
--- a/teensy/teensy.h
+++ b/teensy/teensy.h
@@ -136,7 +136,7 @@ void ty_img_set_pixel(
 );
 
 void ty_font_add_glyph(ty_Font *font, uint8_t c, ty_Image img);
-int ty_font_width(ty_Font *font, const char *fmt, ...);
+int ty_font_width(const ty_Font *font, const char *fmt, ...);
 
 // Pass NULL to restore the screen.
 void ty_draw_set_target(const ty_Image *img);
diff --git a/teensy/teensy_renderer.c b/teensy/teensy_renderer.c
index 1e24248..61710a2 100644
--- a/teensy/teensy_renderer.c
+++ b/teensy/teensy_renderer.c
@@ -103,7 +103,7 @@ void ty_font_add_glyph(ty_Font *font, uint8_t c, ty_Image img)
     font->glyphs[c] = img;
 }
 
-int ty_font_width(ty_Font *font, const char *fmt, ...)
+int ty_font_width(const ty_Font *font, const char *fmt, ...)
 {
     va_list args;
     va_start(args, fmt);