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-rw-r--r--src/imgen.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/imgen.h b/src/imgen.h
index 6954239..20705b4 100644
--- a/src/imgen.h
+++ b/src/imgen.h
@@ -7,7 +7,8 @@
namespace imgen {
-using colored_vector = std::tuple<int, int, color>;
+using vector = std::tuple<std::ptrdiff_t, std::ptrdiff_t>;
+using colored_vector = std::tuple<std::ptrdiff_t, std::ptrdiff_t, color>;
void write_ppm(
const std::string& path,