finderrors.c
author Ryan C. Gordon <icculus@icculus.org>
Mon, 09 Feb 2009 17:53:54 -0500
changeset 555 940821555fda
parent 536 5af65fe6e917
child 562 c9a2bc5129c9
permissions -rw-r--r--
Initial work on preprocessor. Not yet complete!
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/**
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 * MojoShader; generate shader programs from bytecode of compiled
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 *  Direct3D shaders.
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 *
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 * Please see the file LICENSE.txt in the source's root directory.
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 *
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 *  This file written by Ryan C. Gordon.
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 */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <sys/types.h>
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#include <errno.h>
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#include "mojoshader.h"
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#if FINDERRORS_COMPILE_SHADERS
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#include "SDL.h"
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#endif
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#ifdef _MSC_VER
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#define WIN32_LEAN_AND_MEAN 1
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#include <windows.h>
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#include <malloc.h>  // for alloca().
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#define snprintf _snprintf
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#else
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#include <dirent.h>
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#endif
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#define report printf
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static int do_file(const char *profile, const char *dname, const char *fn, int *total)
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{
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    int do_quit = 0;
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    #if FINDERRORS_COMPILE_SHADERS
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    SDL_Event e;  // pump event queue to keep OS happy.
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    while (SDL_PollEvent(&e))
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    {
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        if (e.type == SDL_QUIT)
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            do_quit = 1;
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    } // while
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    SDL_GL_SwapBuffers();
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    #endif
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    if (do_quit)
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    {
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        report("FAIL: user requested quit!\n");
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        return 0;
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    } // if
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    int assembly = 0;
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    if (strstr(fn, ".bytecode") != NULL)
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        assembly = 0;
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    else if (strstr(fn, ".disasm") != NULL)
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        assembly = 1;
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    else
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        return 1;
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    (*total)++;
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    char *fname = (char *) alloca(strlen(fn) + strlen(dname) + 1);
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    sprintf(fname, "%s/%s", dname, fn);
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    FILE *io = fopen(fname, "rb");
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    if (io == NULL)
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    {
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        report("FAIL: %s fopen() failed.\n", fname);
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        return 1;
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    } // if
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    static unsigned char buf[1024 * 256];
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    int rc = fread(buf, 1, sizeof (buf)-1, io);
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    fclose(io);
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    if (rc == -1)
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    {
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        report("FAIL: %s %s\n", fname, strerror(errno));
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        return 1;
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    } // if
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    if (assembly)
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    {
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        const MOJOSHADER_parseData *a;
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        buf[rc] = '\0';  // make sure the source is null-terminated.
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        a = MOJOSHADER_assemble((char *) buf, 0, 0, 0, 0, 0, 0, 0);
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        if (a->error_count > 0)
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        {
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            report("FAIL: %s (line %d) %s\n", fname, a->errors[0].error_position, a->errors[0].error);
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            return 1;
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        } // if
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        else if (a->output_len > sizeof (buf))
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        {
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            report("FAIL: %s buffer overflow in finderrors.c\n", fname);
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            return 1;
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        } // if
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        rc = a->output_len;
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        memcpy(buf, a->output, rc);
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        MOJOSHADER_freeParseData(a);
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    } // if
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    #if FINDERRORS_COMPILE_SHADERS
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    MOJOSHADER_glShader *shader = MOJOSHADER_glCompileShader(buf, rc, NULL, 0);
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    if (shader == NULL)
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        report("FAIL: %s %s\n", fname, MOJOSHADER_glGetError());
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    else
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    {
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        const MOJOSHADER_parseData *pd = MOJOSHADER_glGetShaderParseData(shader);
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        MOJOSHADER_glShader *v = (pd->shader_type == MOJOSHADER_TYPE_VERTEX) ? shader : NULL;
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        MOJOSHADER_glShader *p = (pd->shader_type == MOJOSHADER_TYPE_PIXEL) ? shader : NULL;
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        MOJOSHADER_glProgram *program = MOJOSHADER_glLinkProgram(v, p);
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        if (program == NULL)
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            report("FAIL: %s %s\n", fname, MOJOSHADER_glGetError());
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        else
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        {
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            report("PASS: %s\n", fname);
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            MOJOSHADER_glDeleteProgram(program);
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        } // else
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        MOJOSHADER_glDeleteShader(shader);
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    }
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    #else
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    const MOJOSHADER_parseData *pd = MOJOSHADER_parse(profile, buf, rc, NULL, 0, NULL, NULL, NULL);
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    if (pd->error != NULL)
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        report("FAIL: %s (position %d) %s\n", fname, pd->error_position, pd->error);
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    else
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        report("PASS: %s\n", fname);
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    MOJOSHADER_freeParseData(pd);
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    #endif
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    return 1;
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} // do_file
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static int do_dir(const char *dname, const char *profile)
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{
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    int total = 0;
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#ifdef _MSC_VER
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    WIN32_FIND_DATA dent;
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    HANDLE dirp = INVALID_HANDLE_VALUE;
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    FindFirstFileA(dname, &dent);
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    if (dirp != INVALID_HANDLE_VALUE)
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    {
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        do
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        {
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            if (!do_file(profile, dname, dent.cFileName, &total))
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                break;
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        } while (FindNextFileA(dirp, &dent) != 0);
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        CloseHandle(dirp);
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    } // if
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#else
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    struct dirent *dent = NULL;
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    DIR *dirp = opendir(dname);
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    if (dirp != NULL)
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    {
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        while ((dent = readdir(dirp)) != NULL)
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        {
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            if (!do_file(profile, dname, dent->d_name, &total))
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                break;
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        } // while
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        closedir(dirp);
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    } // if
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#endif
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    return total;
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} // do_dir
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int main(int argc, char **argv)
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{
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    //printf("MojoShader finderrors\n");
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    //printf("Compiled against version %d\n", MOJOSHADER_VERSION);
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    //printf("Linked against version %d\n", MOJOSHADER_version());
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    //printf("\n");
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    if (argc <= 2)
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        printf("\n\nUSAGE: %s <profile> [dir1] ... [dirN]\n\n", argv[0]);
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    else
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    {
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        int total = 0;
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        int i;
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        const char *profile = argv[1];
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        #if FINDERRORS_COMPILE_SHADERS
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        SDL_Init(SDL_INIT_VIDEO);
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        SDL_GL_LoadLibrary(NULL);
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        SDL_SetVideoMode(640, 480, 0, SDL_OPENGL);
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        printf("Best profile is '%s'\n", MOJOSHADER_glBestProfile(SDL_GL_GetProcAddress));
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        MOJOSHADER_glContext *ctx;
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        ctx = MOJOSHADER_glCreateContext(profile, SDL_GL_GetProcAddress, 0, 0, 0);
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        if (ctx == NULL)
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        {
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            printf("MOJOSHADER_glCreateContext() fail: %s\n", MOJOSHADER_glGetError());
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            SDL_Quit();
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            return 1;
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        } // if
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        MOJOSHADER_glMakeContextCurrent(ctx);
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        #endif
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        for (i = 2; i < argc; i++)
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            total += do_dir(argv[i], profile);
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        printf("Saw %d files.\n", total);
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        #if FINDERRORS_COMPILE_SHADERS
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        MOJOSHADER_glDestroyContext(ctx);
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        SDL_Quit();
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        #endif
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    } // else
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    return 0;
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} // main
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// end of finderrors.c ...
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