Increase `ftos` precision (#13141)

[minetest.git] / src / util / png.cpp

diff --git a/src/util/png.cpp b/src/util/png.cpp
index 7ac2e94a110544706a7d76b54fda1329acfae896..698cbc9a56d02754926e2c8f13e0ec35d55e0e6b 100755 (executable)
--- a/src/util/png.cpp
+++ b/src/util/png.cpp
@@ -37,11 +37,11 @@ static void writeChunk(std::ostringstream &target, const std::string &chunk_str)
 
 std::string encodePNG(const u8 *data, u32 width, u32 height, s32 compression)
 {
-       auto file = std::ostringstream(std::ios::binary);
+       std::ostringstream file(std::ios::binary);
        file << "\x89PNG\r\n\x1a\n";
 
        {
-               auto IHDR = std::ostringstream(std::ios::binary);
+               std::ostringstream IHDR(std::ios::binary);
                IHDR << "IHDR";
                writeU32(IHDR, width);
                writeU32(IHDR, height);
@@ -51,9 +51,9 @@ std::string encodePNG(const u8 *data, u32 width, u32 height, s32 compression)
        }
 
        {
-               auto IDAT = std::ostringstream(std::ios::binary);
+               std::ostringstream IDAT(std::ios::binary);
                IDAT << "IDAT";
-               auto scanlines = std::ostringstream(std::ios::binary);
+               std::ostringstream scanlines(std::ios::binary);
                for(u32 i = 0; i < height; i++) {
                        scanlines.write("\x00", 1); // Null predictor
                        scanlines.write((const char*) data + width * 4 * i, width * 4);