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  2. GTA: SA-MP
  3. [Ištaisyta] Invalid memory access.
2
f0cus

[Ištaisyta] Invalid memory access.

f0cus parašė prieš 10 metų skiltyje GTA: SA-MP

Yiin atsakė paskutinis prieš 10 metų. Viso atsakymų: 1.

naudojimas public OnGameModeInit() printf("%s", (divide("The_quick_brown_fox_jumps_over_the_lazy_dog", "\n", false, 4, 6, 6, 4)) );

funkcija

stock divide(string[], divider[], bool:cutend, ...) {
    new
        args = numargs(),
        tmp[512],
        buffer[1024], 
        lastpos;
    for(new arg = 3; arg < args; arg++) {
        strmid(tmp, string, lastpos, lastpos+getarg(arg));
        lastpos += getarg(arg);
        if(arg != args-1) strcat(tmp, divider);
        strcat(buffer, tmp);
    }
    if(lastpos < strlen(string) && !cutend) {
        strmid(tmp, string, lastpos, strlen(string));
        strcat(tmp, divider);
        strcat(buffer, tmp);
    }
    printf("Buffer: %s", buffer);
    return buffer;
}

erroras

Run time error 5: "Invalid memory access"
AMX backtrace:
00005e64 in ?? (4576, 4752, 0, 1430592, 1430588, 1430584, 1430580)

esme, kad Buffer: %s funkcijos pabaigoje isprintina, bet funkcija nereturnina to stringo.

1
Yiin Profilis

Yiin prieš 10 metų 


forward _SafeReturnCode_(dest[], src[], bytes);

public _SafeReturnCode_(dest[], src[], bytes)
{
    memcpy(dest, src, 0, bytes, bytes);
}

stock SafeReturnCode(const src[], const bytes = sizeof (src))
{
    // Push the lengths for the memcpy (needs "pri", so done first).
    #emit LOAD.S.pri    bytes
    #emit SHL.C.pri     2
    #emit PUSH.pri
    #emit PUSH.pri

    // Get the parameter count.
    #emit LOAD.S.pri    0
    #emit MOVE.alt
    #emit ADD.C         8
    #emit LOAD.I

    // Get the desination pointer.
    #emit ADD
    #emit ADD.C         12
    #emit LOAD.I

    // Do a raw memcpy (pointer to pointer, not array to array).
    #emit PUSH.C        0
    #emit PUSH.S        src
    #emit PUSH.pri
    #emit PUSH.C        20
    #emit SYSREQ.C      memcpy

    // Return to the caller's caller.
    #emit MOVE.pri
    #emit SCTRL         5
    #emit SCTRL         4
    #emit RETN

    // Compiler cleanup.
    return 0;
}

#define safe_return%0; return SafeReturnCode(%0),(%0);

stock divide(string[], divider[], bool:cutend, ...) {
    static
        args,
        tmp[512],
        buffer[1024], 
        lastpos;
    args = numargs();
    lastpos = 0;
    tmp[0] = EOS;
    buffer[0] = EOS;

    for(new arg = 3; arg < args; arg++) {
        strmid(tmp, string, lastpos, lastpos+getarg(arg));
        lastpos += getarg(arg);
        if(arg != args-1) strcat(tmp, divider);
        strcat(buffer, tmp);
    }
    if(lastpos < strlen(string) && !cutend) {
        strmid(tmp, string, lastpos, strlen(string));
        strcat(tmp, divider);
        strcat(buffer, tmp);
    }
    printf("Buffer: %s", buffer);

    safe_return buffer;
}

http://forum.sa-mp.com/showthread.php?t=456132