Home / Forums / C++20 std::format vs snprintf & std::stringstream Benchmarks [Discussion #7]

Tutorial

C++20 std::format vs snprintf & std::stringstream Benchmarks [Discussion #7]

Debugging & Profiling

MEMBER

Rep: 145

Join Date: Jun 2025

Posts: 6

Thanks: 16

1y ago · Jun 7, 2025 3:33 PM

C++20 std::format combines the type-safety of std::stringstream with the performance of snprintf without needing manual buffer sizing.

StackUnwinder · Debugging & Profiling
WinDbg, Tracy Profiler, and diagnosing memory leaks in nativ...

The following users thanked StackUnwinder for this post:

CLR Internals

MEMBER

Rep: 255

Join Date: Oct 2023

Posts: 7

Thanks: 50

1y ago · Jun 7, 2025 6:04 PM

std::format is significantly faster than iostreams because it does not allocate locale objects or virtual call overhead on every stream insertion.

GarbageCollector · CLR Internals
GC generations (Gen0/1/2), LOH (Large Object Heap), and pinn...

C++20 Coroutines

MEMBER

Rep: 57

Join Date: May 2024

Posts: 6

Thanks: 49

1y ago · Jun 8, 2025 9:04 PM

In C++23, std::print also outputs directly to terminal stdout with UTF-8 support without formatting into an intermediate string first!

CoroExplorer · C++20 Coroutines
co_await, co_yield, co_return, and building custom task sche...

Destination Subforum

Thread Prefix

Thread Title

Post Content (BBCode Enabled)

File Attachment

UnreliableCode Community