nightcracker@nightcracker-pc:~/c/brainfuck$splint brainfuck.c
Splint 3.1.2 --- 03 May 2009

brainfuck.c:17:6: Parse Error. (For help on parse errors,see splint -help
               parseerrors.)
*** Cannot continue.

现在,显然它在第16行第6列看到了错误.让我们检查一下(发布完整代码)：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

enum {
    CELL_CHUNK_SIZE = 1024,};

typedef unsigned char cell;

int main(int argc,char *argv[]) {
    if (argc < 1) {
        fprintf(stderr,"ERROR: Not enough arguments\n");
        return 1;
    }

    FILE  *srcfile; // source file << THIS LINE APPARENTLY IS WRONG
    long srclen; // source file size
    char *bf; // brainfuck code file in memory

    char *ip; // instruction pointer
    cell *cells; // brainfuck cells
    cell *newcells; // used for creating a new chunk of cells
    cell *cp; // cell pointer
    unsigned long numcells = CELL_CHUNK_SIZE; // amount of current cells
    unsigned nest; // current nesting
    int buf; // i/o buffer

    srcfile = fopen(argv[1],"rb");
    if (srcfile == NULL) {
        fprintf(stderr,"ERROR: Couldn't open source file\n");
        return 2;
    }

    // get source file length
    fseek(srcfile,SEEK_END);
    srclen = ftell(srcfile);
    fseek(srcfile,SEEK_SET);

    // allocate memory for source file
    bf = malloc(srclen);
    if (bf == NULL) {
        fprintf(stderr,"ERROR: Couldn't allocate memory for source file\n");
        return 3;
    }

    // read source file in memory
    if (srclen != fread(bf,sizeof(char),srclen,srcfile)) {
        fprintf(stderr,"ERROR: Error while reading source file\n");
        free(bf);
        return 4;
    }

    fclose(srcfile);

    cells = malloc(CELL_CHUNK_SIZE * sizeof(cell));
    memset(cells,CELL_CHUNK_SIZE);

    if (cells == NULL) {
        fprintf(stderr,"ERROR: Memory allocation Failed\n");
        free(bf);
        free(cells);
        return 5;
    }

    cp = cells; // cell pointer initialized to most-left cell
    ip = bf; // instruction pointer initialized to first character
    nest = 0;

    while (ip >= bf && ip <= (bf + srclen)) {
        switch (*ip) {
            case '+':
                (*cp)++;
                break;
            case '-':
                (*cp)--;
                break;
            case '>':
                cp++;
                if ((cp - cells) == numcells) {
                    newcells = realloc(cells,(numcells + CELL_CHUNK_SIZE) * sizeof(cell)); // allocate memory for new chunk

                    if (newcells == NULL) {
                        fprintf(stderr,"ERROR: Memory allocation Failed\n");
                        free(bf);
                        free(cells);
                        return 5;
                    }

                    cp = newcells + (cp - cells); // point cell pointer to cell in new chunk
                    cells = newcells; // point cells to new memory location (if altered)
                    memset(cp,CELL_CHUNK_SIZE); // initialize new chunk
                    numcells += CELL_CHUNK_SIZE;
                }
                break;
            case '<':
                cp--;
                break;
            case '.':
                putchar(*cp);
                break;
            case ',':
                if ((buf = getchar()) != EOF) {
                    *cp = (unsigned char) buf;
                } else *cp = 0;
                break;
            case '[':
                if (!(*cp)) {
                    ip++; // move past the opening bracket
                    while (nest > 0 || *ip != ']') { // skip to matching ]
                        if (*ip == '[') nest++; // enter nest
                        if (*ip == ']') nest--; // leave nest (or main loop,in which nesting > 0 fails)

                        ip++; // move right
                    }

                }
                break;
            case ']':
                if (*cp) {
                    ip--; // move before the closing bracket
                    while (nest > 0 || *ip != '[') { // rewind to matching [
                        if (*ip == '[') nest--; // leave nest (or main loop,in which nesting > 0 fails)
                        if (*ip == ']') nest++; // enter nest

                        ip--; // move left
                    }
                    ip--; // move before the opening bracket
                }
                break;
        }

        ip++; // move to next instruction
    }


    free(cells);
    free(bf);
    return 0;
}

请注意,此程序编译时没有错误(gcc -Wall -std = c99 brainfuck.c),运行时行为正常.

注意：如果你被名字brainfuck冒犯了,请忍受它.它是一种编程语言,由作者以这种方式命名,我尊重并使用该名称.

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