Add stdint.h include to emitterutils.cpp

[taotieren]

...
[406/1335] Building CXX object external/yaml/CMakeFiles/yaml-cpp.dir/src/emitterutils.cpp.o
FAILED: [code=1] external/yaml/CMakeFiles/yaml-cpp.dir/src/emitterutils.cpp.o 
/usr/bin/c++ -DYAML_CPP_NO_CONTRIB -DYAML_CPP_STATIC_DEFINE -I/build/qsoc-git/src/qsoc-git/build/external/yaml -I/build/qsoc-git/src/qsoc-git/external/yaml -I/build/qsoc-git/src/qsoc-git/build/external/yaml/yaml-cpp_autogen/include -I/build/qsoc-git/src/qsoc-git/external/yaml/include -I/build/qsoc-git/src/qsoc-git/external/yaml/src -march=x86-64 -mtune=generic -O2 -pipe -fno-plt -fexceptions         -Wp,-D_FORTIFY_SOURCE=3 -Wformat -Werror=format-security         -fstack-clash-protection -fcf-protection         -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -Wp,-D_GLIBCXX_ASSERTIONS -g -ffile-prefix-map=/build/qsoc-git/src=/usr/src/debug/qsoc-git -flto=auto -O3 -DNDEBUG -std=c++20 -fPIC -MD -MT external/yaml/CMakeFiles/yaml-cpp.dir/src/emitterutils.cpp.o -MF external/yaml/CMakeFiles/yaml-cpp.dir/src/emitterutils.cpp.o.d -o external/yaml/CMakeFiles/yaml-cpp.dir/src/emitterutils.cpp.o -c /build/qsoc-git/src/qsoc-git/external/yaml/src/emitterutils.cpp
/build/qsoc-git/src/qsoc-git/external/yaml/src/emitterutils.cpp:221:11: error: ‘uint16_t’ was not declared in this scope
  221 | std::pair<uint16_t, uint16_t> EncodeUTF16SurrogatePair(int codePoint) {
      |           ^~~~~~~~
/build/qsoc-git/src/qsoc-git/external/yaml/src/emitterutils.cpp:13:1: note: ‘uint16_t’ is defined in header ‘<cstdint>’; this is probably fixable by adding ‘#include <cstdint>’
   12 | #include "yaml-cpp/null.h"
  +++ |+#include <cstdint>
   13 | #include "yaml-cpp/ostream_wrapper.h"
/build/qsoc-git/src/qsoc-git/external/yaml/src/emitterutils.cpp:221:21: error: ‘uint16_t’ was not declared in this scope
  221 | std::pair<uint16_t, uint16_t> EncodeUTF16SurrogatePair(int codePoint) {
      |                     ^~~~~~~~
/build/qsoc-git/src/qsoc-git/external/yaml/src/emitterutils.cpp:221:21: note: ‘uint16_t’ is defined in header ‘<cstdint>’; this is probably fixable by adding ‘#include <cstdint>’
/build/qsoc-git/src/qsoc-git/external/yaml/src/emitterutils.cpp:221:29: error: template argument 1 is invalid
  221 | std::pair<uint16_t, uint16_t> EncodeUTF16SurrogatePair(int codePoint) {
      |                             ^
/build/qsoc-git/src/qsoc-git/external/yaml/src/emitterutils.cpp:221:29: error: template argument 2 is invalid
...

[SGSSGene]

Thank you for your contribution.

cstdint is the correct c++ header for uint16_t. stdint.h is a c header and not required.

So I am assuming the issue must lie somwhere else. Could you report your gcc/clang version and which OS you are using?

[taotieren]

❯ lsb_release -a
LSB Version:    n/a
Distributor ID: Arch
Description:    Arch Linux
Release:        rolling
Codename:       n/a
❯ uname -a
Linux 14s 7.0.12-zen1-1-zen #1 ZEN SMP PREEMPT_DYNAMIC Wed, 10 Jun 2026 08:57:50 +0000 x86_64 GNU/Linux
❯ gcc -v
使用内建 specs。
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/16.1.1/lto-wrapper
目标：x86_64-pc-linux-gnu
配置为：/build/gcc/src/gcc/configure --enable-languages=ada,c,c++,d,fortran,go,lto,m2,objc,obj-c++,rust,cobol --enable-bootstrap --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://gitlab.archlinux.org/archlinux/packaging/packages/gcc/-/issues --with-build-config=bootstrap-lto --with-linker-hash-style=gnu --with-system-zlib --enable-cet=auto --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-default-ssp --enable-gnu-indirect-function --enable-gnu-unique-object --enable-libstdcxx-backtrace --enable-link-serialization=1 --enable-linker-build-id --enable-lto --enable-multilib --enable-plugin --enable-shared --enable-threads=posix --disable-libssp --disable-libstdcxx-pch --disable-werror --disable-fixincludes
线程模型：posix
支持的 LTO 压缩算法：zlib zstd
gcc 版本 16.1.1 20260430 (GCC) 

After manually adding the stdint.h header file, the code compiles successfully.

[SGSSGene]

I believe you are using 0.8.0 or older and not the newest version 0.9.0 (or master branch). This issue has been fixed:
7b469b4

[taotieren]

I believe you are using 0.8.0 or older and not the newest version 0.9.0 (or master branch). This issue has been fixed: 7b469b4

Yes. I just checked the version of yaml-cpp used by the upstream repo and it needs to be upgraded to 0.9.0 or above. Thanks a lot.

[SGSSGene]

Thank you for forwarding it to qsoc !