[Include] TDW CJump - nonlocal gotos in Pawn - Printable Version

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TDW CJump - nonlocal gotos in Pawn - VVWVV - 09.08.2017

Description

This library provides you the opportunity to use nonlocal gotos as well as in C language. It is important to note that this one supports JIT-plugin.

Documentation

In Pawn there is a goto operator which provides an unconditional jump from the 'goto' to a labeled statement in the same function. This operator can only jump within the same function, but the library provides a nonlocal unconditional jump between functions.

Functions

Name	Description
setjmp	Saves the current environment into the variable for later use by the function longjmp. Parameters: env[JmpBuf] - buffer for storing environments. &retval - the reference to a variable into which will be written the value from the function longjmp.
longjmp	Restores the environment saved by the function setjmp. Parameters: env[JmpBuf] - buffer for storing environments. val - return value.

Example

pawn Код:

new jmp[JmpBuf];

main() {
    new ret;
    setjmp(jmp, ret);  // save the current environment into the buffer.

    print(!"main()");  // this code will be executed several times.

    if (ret != 2) {    // we need to use the condition to avoid an infinite loop.
        somefunc(ret);
    }
}

somefunc(ret)
{
    print(!"somefunc()");
    longjmp(jmp, ret+1);  // global goto.
}

Download

github

Author: VVWVV
Licensed under the zlib.

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Re: TDW CJump - nonlocal gotos in Pawn - Xeon™ - 11.08.2017

based on script, Good job.

i bet the most of people (me too ) here, don't know what is this.
suggestion: you should add more informations.

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Re: TDW CJump - nonlocal gotos in Pawn - VVWVV - 11.08.2017

Thank you!

I added more information in the documentation section.

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