UUID Generator

Any program that logs to a file, calls a webhook, or draws chart objects across multiple symbols eventually needs a short id that will not collide with the last one. This header generates them in the standard 8-4-4-4-12 UUID shape. Say plainly what this is not: neither platform has a cryptographic random source or access to a MAC address or hardware id, the usual entropy inputs for a real RFC 4122 generator. What this header actually does is mix MathRand() with the tick count, the account login number, and a per-run counter, then stamp the version and variant bits so the output is structurally a valid v4 UUID. That is enough for "practically will not collide within one program's lifetime" - log correlation ids, chart object name prefixes, request ids for an outbound webhook. It is not enough for anything where an id must be unguessable, such as a security token or a password reset link. Do not use it for that. UuidGenerateCompact drops the dashes for the common case of building a chart object name prefix, where the dashes cost length and buy nothing. UuidIsValid checks structure only - length, hyphen positions, hex digits - so it also accepts UUIDs generated elsewhere (v1, v5, a database default) that this header did not create itself. Notes and limitations - Not cryptographically secure and not suitable for security tokens, password reset links, or anything where an attacker guessing the value matters. - Global module-level counter shared within one running program's copy of the header. Two separate programs on the same terminal do not share it, and do not need to - each has its own independent sequence. - Collision probability is not zero, only very small for the volumes a typical EA or script log would generate in a session. Do not use these as a primary database key without an additional uniqueness constraint.

Script · MT5 · v1.0 · Free

Tags: Bitcoin & Crypto · MT5 Script · MQL5 Source Code

MQL4 & MQL5 scripts · PolyMaria