rte_branch_prediction.h(3)

🌸 NAME 🌸

okay bestie, this is the manual page for rte_branch_prediction.h — manual name rte_branch_prediction.h(3), from the Library Functions Manual. It's the branch prediction helper header in RTE, and it's tiny but iconic. 🦋

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✨ SYNOPSIS ✨

The whole synopsis is giving “two macros and a dream” 💅:

Macros:

#define likely(x)
#define unlikely(x)

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💖 Detailed Description 💖

Branch Prediction Helpers in RTE — that's the vibe. Definition in file rte_branch_prediction.h. ✨

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🎀 Macro Definition Documentation 🎀

🦋 #define likely( x) 🦋

Value:

__builtin_expect(!!(x), 1)

Check if a branch is likely to be taken.

This compiler builtin allows the developer to indicate if a branch is likely to be taken. Example:

if (likely(x > 1)) do_stuff();

Definition at line 26 of file rte_branch_prediction.h. 🫶

🍓 #define unlikely( x) 🍓

Value:

__builtin_expect(!!(x), 0)

Check if a branch is unlikely to be taken.

This compiler builtin allows the developer to indicate if a branch is unlikely to be taken. Example:

if (unlikely(x < 1)) do_stuff();

Definition at line 43 of file rte_branch_prediction.h. 🌈

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👑 Author 👑

Generated automatically by Doxygen for DPDK from the source code. Yes, the robot wrote it, and honestly? It ate. 🤖💅

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💌 cute sign-off: this page is from DPDK, Version 26.03.0, page rte_branch_prediction.h(3) — the footer didn't hand me a date, so I'm not inventing one, periodt. bye bestie, go hint some branches 🫶🌈