From 9b1f176a45fe932b0ed924e2851ab23114696be7 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 5 May 2018 22:32:02 +0300
Subject: [PATCH] Use the bool type for the used glyph array in render_packed

Also change the typedef to unsigned char to save space.
---
 ttf2png.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/ttf2png.c b/ttf2png.c
index f8db322..98a40ec 100644
--- a/ttf2png.c
+++ b/ttf2png.c
@@ -68,7 +68,7 @@ typedef struct sRange
 	unsigned last;
 } Range;
 
-typedef int bool;
+typedef unsigned char bool;
 
 void usage(void);
 int convert_numeric_option(char, int);
@@ -878,7 +878,7 @@ int render_packed(Font *font, unsigned margin, unsigned padding)
 {
 	unsigned i;
 	size_t area = 0;
-	char *used_glyphs;
+	bool *used_glyphs;
 	unsigned *used_pixels;
 	unsigned cx = margin, cy;
 	unsigned used_h = 0;
@@ -917,7 +917,7 @@ int render_packed(Font *font, unsigned margin, unsigned padding)
 	memset(font->image.data, 0, font->image.w*font->image.h);
 	used_pixels = (unsigned *)malloc(font->image.w*sizeof(unsigned));
 	memset(used_pixels, 0, font->image.w*sizeof(unsigned));
-	used_glyphs = (char *)malloc(font->n_glyphs);
+	used_glyphs = (bool *)malloc(font->n_glyphs);
 	memset(used_glyphs, 0, font->n_glyphs);
 
 	for(cy=margin; cy+margin<font->image.h;)
-- 
2.43.0