Thanks for using Compiler Explorer
Sponsors
Jakt
C++
Ada
Analysis
Assembly
C
Carbon
C++ (Circle)
CIRCT
Clean
CMake
C++ for OpenCL
MLIR
Cppx
Cppx-Blue
Cppx-Gold
Crystal
C#
CUDA C++
D
Dart
Erlang
Fortran
F#
Go
Haskell
HLSL
ispc
Java
Kotlin
LLVM IR
Nim
OCaml
OpenCL C
Pascal
Pony
Python
Ruby
Rust
Scala
Solidity
Swift
Toit
TypeScript Native
Visual Basic
Zig
c++ source #1
Output
Compile to binary
Execute the code
Intel asm syntax
Demangle identifiers
Filters
Unused labels
Library functions
Directives
Comments
Horizontal whitespace
Compiler
6502-c++ 11.1.0
ARM gcc 10.2 (linux)
ARM gcc 10.2.1 (none)
ARM gcc 10.3 (linux)
ARM gcc 10.3.1 (2021.07 none)
ARM gcc 10.3.1 (2021.10 none)
ARM gcc 11.1 (linux)
ARM gcc 11.2 (linux)
ARM gcc 11.2.1 (none)
ARM gcc 11.3 (linux)
ARM gcc 12.1 (linux)
ARM gcc 4.5.4 (linux)
ARM gcc 4.6.4 (linux)
ARM gcc 5.4 (linux)
ARM gcc 5.4.1 (none)
ARM gcc 6.3.0 (linux)
ARM gcc 6.4 (linux)
ARM gcc 7.2.1 (none)
ARM gcc 7.3 (linux)
ARM gcc 7.5 (linux)
ARM gcc 8.2 (WinCE)
ARM gcc 8.2 (linux)
ARM gcc 8.3.1 (none)
ARM gcc 8.5 (linux)
ARM gcc 9.2.1 (none)
ARM gcc 9.3 (linux)
ARM gcc trunk (linux)
ARM msvc v19.0 (WINE)
ARM msvc v19.10 (WINE)
ARM msvc v19.14 (WINE)
ARM64 gcc 10.2
ARM64 gcc 10.3
ARM64 gcc 11.1
ARM64 gcc 11.2
ARM64 gcc 11.3
ARM64 gcc 12.1
ARM64 gcc 5.4
ARM64 gcc 6.3
ARM64 gcc 6.4
ARM64 gcc 7.3
ARM64 gcc 7.5
ARM64 gcc 8.2
ARM64 gcc 8.5
ARM64 gcc 9.3
ARM64 gcc trunk
ARM64 msvc v19.14 (WINE)
AVR gcc 10.3.0
AVR gcc 11.1.0
AVR gcc 4.5.4
AVR gcc 4.6.4
AVR gcc 5.4.0
AVR gcc 9.2.0
AVR gcc 9.3.0
Arduino Mega (1.8.9)
Arduino Uno (1.8.9)
FRC 2019
FRC 2020
KVX gcc 7.5 (ACB 4.1.0)
KVX gcc 7.5 (ACB 4.1.0-cd1)
KVX gcc 7.5 (ACB 4.2.0)
KVX gcc 7.5 (ACB 4.3.0)
KVX gcc 7.5 (ACB 4.4.0)
KVX gcc 9.4 (ACB 4.6.0)
MRISC32 gcc (trunk)
MSP430 gcc 4.5.3
MSP430 gcc 5.3.0
MSP430 gcc 6.2.1
RISC-V rv32gc clang (trunk)
RISC-V rv32gc clang 10.0.0
RISC-V rv32gc clang 10.0.1
RISC-V rv32gc clang 11.0.0
RISC-V rv32gc clang 11.0.1
RISC-V rv32gc clang 12.0.0
RISC-V rv32gc clang 12.0.1
RISC-V rv32gc clang 13.0.0
RISC-V rv32gc clang 13.0.1
RISC-V rv32gc clang 14.0.0
RISC-V rv32gc clang 9.0.0
RISC-V rv32gc clang 9.0.1
RISC-V rv32gc gcc 10.2.0
RISC-V rv32gc gcc 10.3.0
RISC-V rv32gc gcc 11.2.0
RISC-V rv32gc gcc 11.3.0
RISC-V rv32gc gcc 12.1.0
RISC-V rv32gc gcc 8.2.0
RISC-V rv32gc gcc 8.5.0
RISC-V rv32gc gcc 9.4.0
RISC-V rv64gc clang (trunk)
RISC-V rv64gc clang 10.0.0
RISC-V rv64gc clang 10.0.1
RISC-V rv64gc clang 11.0.0
RISC-V rv64gc clang 11.0.1
RISC-V rv64gc clang 12.0.0
RISC-V rv64gc clang 12.0.1
RISC-V rv64gc clang 13.0.0
RISC-V rv64gc clang 13.0.1
RISC-V rv64gc clang 14.0.0
RISC-V rv64gc clang 9.0.0
RISC-V rv64gc clang 9.0.1
RISC-V rv64gc gcc 10.2.0
RISC-V rv64gc gcc 10.3.0
RISC-V rv64gc gcc 11.2.0
RISC-V rv64gc gcc 11.3.0
RISC-V rv64gc gcc 12.1.0
RISC-V rv64gc gcc 8.2.0
RISC-V rv64gc gcc 8.5.0
RISC-V rv64gc gcc 9.4.0
Raspbian Buster
Raspbian Stretch
WebAssembly clang (trunk)
Xtensa ESP32 gcc 8.2.0 (2019r2)
Xtensa ESP32 gcc 8.2.0 (2020r1)
Xtensa ESP32 gcc 8.2.0 (2020r2)
Xtensa ESP32 gcc 8.4.0 (2020r3)
Xtensa ESP32 gcc 8.4.0 (2021r1)
Xtensa ESP32 gcc 8.4.0 (2021r2)
Xtensa ESP32-S2 gcc 8.2.0 (2019r2)
Xtensa ESP32-S2 gcc 8.2.0 (2020r1)
Xtensa ESP32-S2 gcc 8.2.0 (2020r2)
Xtensa ESP32-S2 gcc 8.4.0 (2020r3)
Xtensa ESP32-S2 gcc 8.4.0 (2021r1)
Xtensa ESP32-S2 gcc 8.4.0 (2021r2)
Xtensa ESP32-S3 gcc 8.4.0 (2020r3)
Xtensa ESP32-S3 gcc 8.4.0 (2021r1)
Xtensa ESP32-S3 gcc 8.4.0 (2021r2)
arm64 msvc v19.28 VS16.9
arm64 msvc v19.29 VS16.10
arm64 msvc v19.29 VS16.11
arm64 msvc v19.30
arm64 msvc v19.31
arm64 msvc v19.32
arm64 msvc v19.latest
armv7-a clang (trunk)
armv7-a clang 10.0.0
armv7-a clang 10.0.1
armv7-a clang 11.0.0
armv7-a clang 11.0.1
armv7-a clang 9.0.0
armv7-a clang 9.0.1
armv8-a clang (trunk)
armv8-a clang (trunk, all architectural features)
armv8-a clang 10.0.0
armv8-a clang 10.0.1
armv8-a clang 11.0.0
armv8-a clang 11.0.1
armv8-a clang 9.0.0
armv8-a clang 9.0.1
ellcc 0.1.33
ellcc 0.1.34
ellcc 2017-07-16
mips gcc 11.2.0
mips gcc 5.4
mips gcc 9.3.0
mips64 (el) gcc 5.4
mips64 gcc 11.2.0
mips64 gcc 5.4
mipsel gcc 5.4
nanoMIPS gcc 6.3.0 (mtk)
power gcc 11.2.0
power gcc 4.8.5
power64 AT12.0 (gcc8)
power64 AT13.0 (gcc9)
power64 gcc 11.2.0
power64le AT12.0 (gcc8)
power64le AT13.0 (gcc9)
power64le clang (trunk)
power64le gcc 11.2.0
power64le gcc 6.3.0
powerpc64 clang (trunk)
s390x gcc 11.2.0
x64 msvc v19.0 (WINE)
x64 msvc v19.10 (WINE)
x64 msvc v19.14
x64 msvc v19.14 (WINE)
x64 msvc v19.15
x64 msvc v19.16
x64 msvc v19.20
x64 msvc v19.21
x64 msvc v19.22
x64 msvc v19.23
x64 msvc v19.24
x64 msvc v19.25
x64 msvc v19.26
x64 msvc v19.27
x64 msvc v19.28
x64 msvc v19.28 VS16.9
x64 msvc v19.29 VS16.10
x64 msvc v19.29 VS16.11
x64 msvc v19.30
x64 msvc v19.31
x64 msvc v19.32
x64 msvc v19.latest
x86 djgpp 4.9.4
x86 djgpp 5.5.0
x86 djgpp 6.4.0
x86 djgpp 7.2.0
x86 msvc v19.0 (WINE)
x86 msvc v19.10 (WINE)
x86 msvc v19.14
x86 msvc v19.14 (WINE)
x86 msvc v19.15
x86 msvc v19.16
x86 msvc v19.20
x86 msvc v19.21
x86 msvc v19.22
x86 msvc v19.23
x86 msvc v19.24
x86 msvc v19.25
x86 msvc v19.26
x86 msvc v19.27
x86 msvc v19.28
x86 msvc v19.28 VS16.9
x86 msvc v19.29 VS16.10
x86 msvc v19.29 VS16.11
x86 msvc v19.30
x86 msvc v19.31
x86 msvc v19.32
x86 msvc v19.latest
x86-64 Zapcc 190308
x86-64 clang (assertions trunk)
x86-64 clang (experimental -Wlifetime)
x86-64 clang (experimental P1061)
x86-64 clang (experimental P1144)
x86-64 clang (experimental P1221)
x86-64 clang (experimental auto NSDMI)
x86-64 clang (experimental pattern matching)
x86-64 clang (old concepts branch)
x86-64 clang (reflection)
x86-64 clang (resugar)
x86-64 clang (thephd.dev)
x86-64 clang (trunk)
x86-64 clang (widberg)
x86-64 clang 10.0.0
x86-64 clang 10.0.1
x86-64 clang 11.0.0
x86-64 clang 11.0.1
x86-64 clang 12.0.0
x86-64 clang 12.0.1
x86-64 clang 13.0.0
x86-64 clang 13.0.1
x86-64 clang 14.0.0
x86-64 clang 3.0.0
x86-64 clang 3.1
x86-64 clang 3.2
x86-64 clang 3.3
x86-64 clang 3.4.1
x86-64 clang 3.5
x86-64 clang 3.5.1
x86-64 clang 3.5.2
x86-64 clang 3.6
x86-64 clang 3.7
x86-64 clang 3.7.1
x86-64 clang 3.8
x86-64 clang 3.8.1
x86-64 clang 3.9.0
x86-64 clang 3.9.1
x86-64 clang 4.0.0
x86-64 clang 4.0.1
x86-64 clang 5.0.0
x86-64 clang 5.0.1
x86-64 clang 5.0.2
x86-64 clang 6.0.0
x86-64 clang 6.0.1
x86-64 clang 7.0.0
x86-64 clang 7.0.1
x86-64 clang 7.1.0
x86-64 clang 8.0.0
x86-64 clang 8.0.1
x86-64 clang 9.0.0
x86-64 clang 9.0.1
x86-64 gcc (contract labels)
x86-64 gcc (contracts)
x86-64 gcc (coroutines)
x86-64 gcc (modules)
x86-64 gcc (trunk)
x86-64 gcc 10.1
x86-64 gcc 10.2
x86-64 gcc 10.3
x86-64 gcc 10.4
x86-64 gcc 11.1
x86-64 gcc 11.2
x86-64 gcc 11.3
x86-64 gcc 12.1
x86-64 gcc 4.1.2
x86-64 gcc 4.4.7
x86-64 gcc 4.5.3
x86-64 gcc 4.6.4
x86-64 gcc 4.7.1
x86-64 gcc 4.7.2
x86-64 gcc 4.7.3
x86-64 gcc 4.7.4
x86-64 gcc 4.8.1
x86-64 gcc 4.8.2
x86-64 gcc 4.8.3
x86-64 gcc 4.8.4
x86-64 gcc 4.8.5
x86-64 gcc 4.9.0
x86-64 gcc 4.9.1
x86-64 gcc 4.9.2
x86-64 gcc 4.9.3
x86-64 gcc 4.9.4
x86-64 gcc 5.1
x86-64 gcc 5.2
x86-64 gcc 5.3
x86-64 gcc 5.4
x86-64 gcc 5.5
x86-64 gcc 6.1
x86-64 gcc 6.2
x86-64 gcc 6.3
x86-64 gcc 6.4
x86-64 gcc 7.1
x86-64 gcc 7.2
x86-64 gcc 7.3
x86-64 gcc 7.4
x86-64 gcc 7.5
x86-64 gcc 8.1
x86-64 gcc 8.2
x86-64 gcc 8.3
x86-64 gcc 8.4
x86-64 gcc 8.5
x86-64 gcc 9.1
x86-64 gcc 9.2
x86-64 gcc 9.3
x86-64 gcc 9.4
x86-64 gcc 9.5
x86-64 icc 13.0.1
x86-64 icc 16.0.3
x86-64 icc 17.0.0
x86-64 icc 18.0.0
x86-64 icc 19.0.0
x86-64 icc 19.0.1
x86-64 icc 2021.1.2
x86-64 icc 2021.2.0
x86-64 icc 2021.3.0
x86-64 icc 2021.4.0
x86-64 icc 2021.5.0
x86-64 icx 2021.1.2
x86-64 icx 2021.2.0
x86-64 icx 2021.3.0
x86-64 icx 2021.4.0
x86-64 icx 2022.0.0
zig c++ 0.6.0
zig c++ 0.7.0
zig c++ 0.7.1
zig c++ 0.8.0
zig c++ 0.9.0
zig c++ trunk
Options
Source code
struct Value { union { int i32; float f32; }; }; template < int > Value foo() { int acc_i32 = 0; float acc_f32 = 0; bool isF32 = false; #if BREAKAGE if (isF32) { const Value acc = { .f32 = acc_f32 }; return acc; } #endif const Value acc = { .i32 = 32 /*acc_i32*/ }; return acc; } Value bar() { int acc_i32 = 0; float acc_f32 = 0; bool isF32 = false; if (isF32) { const Value acc = { .f32 = acc_f32 }; return acc; } const Value acc = { .i32 = acc_i32 }; return acc; } Value eval(const int a) { if (a) return foo< 42 >(); else return bar(); }
Become a Patron
Sponsor on GitHub
Donate via PayPal
Source on GitHub
Mailing list
Installed libraries
Wiki
Report an issue
How it works
Contact the author
About the author
Changelog
Version tree