Compare commits
No commits in common. "5ce1fddc8d7af8b82385aec007056ca0d8a45db7" and "6538e1d7f324eb5ae8f7828a49a8f03b14db85bd" have entirely different histories.
5ce1fddc8d
...
6538e1d7f3
|
|
@ -1,18 +0,0 @@
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|||
{
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||||
"version": 4,
|
||||
"configurations": [
|
||||
{
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||||
"name": "gcc",
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||||
"compilerPath": "/usr/bin/gcc",
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||||
|
||||
"cStandard": "c17",
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||||
"cppStandard": "c++17",
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||||
|
||||
"browse": {
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||||
"path": [
|
||||
"${workspaceFolder}/src"
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||||
]
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||||
}
|
||||
}
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||||
]
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||||
}
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||||
531
src/main.c
531
src/main.c
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|
@ -1,7 +1,7 @@
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|||
#include <stdlib.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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||||
#include <errno.h>
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||||
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||||
#include <time.h>
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|
@ -9,27 +9,10 @@
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|||
#define BRACKETS_NB_MAX 1024
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#define DATA_SIZE_MAX 65536
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// The advanced version of operations should always have value = simple version + 1
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||||
enum operations_t {
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||||
NONE,
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MEM_POINTER_ADD,
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||||
MEM_POINTER_ADD_NB,
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||||
MEM_POINTER_SUB,
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||||
MEM_POINTER_SUB_NB,
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||||
MEM_ADD,
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||||
MEM_ADD_NB,
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||||
MEM_SUB,
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||||
MEM_SUB_NB,
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||||
JUMP_IF_0,
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JUMP_IF_NOT_0,
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||||
PRINT_CHAR,
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GET_CHAR
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||||
};
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||||
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||||
typedef uint8_t operation_t;
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int main(int argc, char *argv[])
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{
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clock_t start_time = clock();
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int status = EXIT_FAILURE;
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||||
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if(argc != 2)
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||||
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|
@ -39,7 +22,7 @@ int main(int argc, char *argv[])
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|||
}
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FILE *program_file = NULL;
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FILE *intermediate_representation_file = NULL;
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FILE *stripped_file = NULL;
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program_file = fopen(argv[1], "r");
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||||
if(program_file == NULL)
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@ -48,8 +31,8 @@ int main(int argc, char *argv[])
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goto end;
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}
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intermediate_representation_file = tmpfile();
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||||
if(intermediate_representation_file == NULL)
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||||
stripped_file = tmpfile();
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||||
if(stripped_file == NULL)
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||||
{
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||||
fprintf(stderr, "Error creating tmp file: %d\n", errno);
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||||
goto end;
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||||
|
|
@ -67,166 +50,31 @@ int main(int argc, char *argv[])
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|||
if(err)
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||||
{
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||||
fprintf(stderr, "Error reading file: %d\n", ferror(program_file));
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||||
goto end;
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||||
return EXIT_FAILURE;
|
||||
}
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||||
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||||
break;
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||||
}
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||||
|
||||
operation_t operation = NONE;
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static operation_t last_operation = NONE;
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||||
switch(c)
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||||
{
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||||
case '>':
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||||
operation = MEM_POINTER_ADD;
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||||
break;
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||||
|
||||
case '<':
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operation = MEM_POINTER_SUB;
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break;
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||||
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||||
case '+':
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operation = MEM_ADD;
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break;
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||||
|
||||
case '-':
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operation = MEM_SUB;
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||||
break;
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||||
|
||||
case '[':
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||||
operation = JUMP_IF_0;
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||||
break;
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||||
|
||||
case ']':
|
||||
operation = JUMP_IF_NOT_0;
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||||
break;
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||||
|
||||
case '.':
|
||||
operation = PRINT_CHAR;
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||||
break;
|
||||
|
||||
case ',':
|
||||
operation = GET_CHAR;
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||||
break;
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||||
fputc(c, stripped_file);
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||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if(operation == NONE)
|
||||
{
|
||||
continue;
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||||
}
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||||
|
||||
switch(operation)
|
||||
{
|
||||
case MEM_POINTER_ADD:
|
||||
case MEM_POINTER_SUB:
|
||||
case MEM_ADD:
|
||||
case MEM_SUB:
|
||||
if(operation == last_operation)
|
||||
{
|
||||
operation++; // Go to advanced version of operation
|
||||
|
||||
if(fseek(intermediate_representation_file, -1, SEEK_CUR))
|
||||
{
|
||||
fprintf(stderr, "Error seeking file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
|
||||
if(fwrite(&operation, sizeof(operation), 1, intermediate_representation_file) != 1)
|
||||
{
|
||||
fprintf(stderr, "Error writing file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
|
||||
size_t nb = 2;
|
||||
|
||||
if(fwrite(&nb, sizeof(nb), 1, intermediate_representation_file) != 1)
|
||||
{
|
||||
fprintf(stderr, "Error writing file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
else if(operation + 1 == last_operation)
|
||||
{
|
||||
operation++;
|
||||
|
||||
size_t nb;
|
||||
|
||||
if(fseek(intermediate_representation_file, -sizeof(nb), SEEK_CUR))
|
||||
{
|
||||
fprintf(stderr, "Error seeking file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
|
||||
if(fread(&nb, sizeof(nb), 1, intermediate_representation_file) != 1)
|
||||
{
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||||
fprintf(stderr, "Error reading file: %d\n", errno);
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||||
goto end;
|
||||
}
|
||||
|
||||
nb++;
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||||
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||||
if(fseek(intermediate_representation_file, -sizeof(nb), SEEK_CUR))
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||||
{
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||||
fprintf(stderr, "Error seeking file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
|
||||
if(fwrite(&nb, sizeof(nb), 1, intermediate_representation_file) != 1)
|
||||
{
|
||||
fprintf(stderr, "Error writing file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if(fwrite(&operation, sizeof(operation), 1, intermediate_representation_file) != 1)
|
||||
{
|
||||
fprintf(stderr, "Error writing file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
|
||||
break;
|
||||
|
||||
case JUMP_IF_0:
|
||||
case JUMP_IF_NOT_0:
|
||||
if(fwrite(&operation, sizeof(operation), 1, intermediate_representation_file) != 1)
|
||||
{
|
||||
fprintf(stderr, "Error writing file: %d\n", errno);
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||||
goto end;
|
||||
}
|
||||
|
||||
size_t jump_pos = 0;
|
||||
|
||||
if(fwrite(&jump_pos, sizeof(jump_pos), 1, intermediate_representation_file) != 1)
|
||||
{
|
||||
fprintf(stderr, "Error writing file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
|
||||
break;
|
||||
|
||||
case PRINT_CHAR:
|
||||
case GET_CHAR:
|
||||
if(fwrite(&operation, sizeof(operation), 1, intermediate_representation_file) != 1)
|
||||
{
|
||||
fprintf(stderr, "Error writing file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
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||||
|
||||
last_operation = operation;
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||||
}
|
||||
|
||||
rewind(stripped_file);
|
||||
|
||||
if(fclose(program_file) == EOF)
|
||||
{
|
||||
program_file = NULL;
|
||||
|
|
@ -238,295 +86,186 @@ int main(int argc, char *argv[])
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|||
|
||||
program_file = NULL;
|
||||
|
||||
size_t brackets_pos[BRACKETS_NB_MAX];
|
||||
size_t brackets_correspondances[BRACKETS_NB_MAX];
|
||||
|
||||
// Parse brackets
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||||
rewind(intermediate_representation_file);
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||||
size_t bracket_nb = 0;
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||||
|
||||
while(true)
|
||||
{
|
||||
operation_t operation;
|
||||
size_t nb_read = fread(&operation, sizeof(operation), 1, intermediate_representation_file);
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||||
int c = fgetc(stripped_file);
|
||||
|
||||
if(nb_read != 1)
|
||||
if(c == EOF)
|
||||
{
|
||||
if(feof(intermediate_representation_file))
|
||||
int err = ferror(stripped_file);
|
||||
|
||||
if(err)
|
||||
{
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
fprintf(stderr, "Error reading file: %d\n", ferror(intermediate_representation_file));
|
||||
fprintf(stderr, "Error reading file: %d\n", ferror(stripped_file));
|
||||
goto end;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
if(operation == JUMP_IF_0)
|
||||
if(c == '[' || c == ']')
|
||||
{
|
||||
long bracket_pos = ftell(intermediate_representation_file);
|
||||
brackets_pos[bracket_nb] = ftell(stripped_file);
|
||||
|
||||
if(bracket_pos == -1)
|
||||
if(c == '[')
|
||||
{
|
||||
fprintf(stderr, "Error getting file pointer: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
// Find corresponding closing bracket index
|
||||
size_t corresponding_bracket_nb = bracket_nb;
|
||||
|
||||
// Find corresponding closing bracket index
|
||||
for(size_t bracket_index = 1; bracket_index;)
|
||||
{
|
||||
operation_t operation_search;
|
||||
nb_read = fread(&operation_search, sizeof(operation_search), 1, intermediate_representation_file);
|
||||
|
||||
if(nb_read != 1)
|
||||
for(size_t bracket_index = 1; bracket_index;)
|
||||
{
|
||||
if(feof(intermediate_representation_file))
|
||||
{
|
||||
fprintf(stderr, "Reached end of file before finding closing bracket.\n");
|
||||
}
|
||||
else
|
||||
{
|
||||
fprintf(stderr, "Error reading file: %d\n", ferror(intermediate_representation_file));
|
||||
}
|
||||
int d = fgetc(stripped_file);
|
||||
|
||||
goto end;
|
||||
}
|
||||
|
||||
switch(operation_search)
|
||||
{
|
||||
case MEM_POINTER_ADD_NB:
|
||||
case MEM_POINTER_SUB_NB:
|
||||
case MEM_ADD_NB:
|
||||
case MEM_SUB_NB:
|
||||
case JUMP_IF_NOT_0:
|
||||
if(fseek(intermediate_representation_file, sizeof(size_t), SEEK_CUR))
|
||||
if(d == EOF)
|
||||
{
|
||||
fprintf(stderr, "Error seeking file: %d\n", errno);
|
||||
int err = ferror(stripped_file);
|
||||
|
||||
if(err)
|
||||
{
|
||||
fprintf(stderr, "Error reading file: %d\n", argv[1], ferror(stripped_file));
|
||||
}
|
||||
else
|
||||
{
|
||||
fprintf(stderr, "Reached EOF before finding closing bracket.");
|
||||
}
|
||||
|
||||
goto end;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
if(d == '[' || d == ']')
|
||||
{
|
||||
corresponding_bracket_nb++;
|
||||
}
|
||||
|
||||
if(d == '[')
|
||||
{
|
||||
bracket_index++;
|
||||
}
|
||||
else if(d == ']')
|
||||
{
|
||||
bracket_index--;
|
||||
}
|
||||
}
|
||||
|
||||
if(operation_search == JUMP_IF_0)
|
||||
{
|
||||
bracket_index++;
|
||||
}
|
||||
else if(operation_search == JUMP_IF_NOT_0)
|
||||
{
|
||||
bracket_index--;
|
||||
}
|
||||
brackets_correspondances[bracket_nb] = corresponding_bracket_nb;
|
||||
brackets_correspondances[corresponding_bracket_nb] = bracket_nb;
|
||||
|
||||
fseek(stripped_file, brackets_pos[bracket_nb], SEEK_SET);
|
||||
}
|
||||
|
||||
long corresponding_bracket_pos = ftell(intermediate_representation_file);
|
||||
|
||||
if(corresponding_bracket_pos == -1)
|
||||
{
|
||||
fprintf(stderr, "Error getting file pointer: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
|
||||
if(fseek(intermediate_representation_file, -sizeof(size_t), SEEK_CUR))
|
||||
{
|
||||
fprintf(stderr, "Error seeking file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
|
||||
size_t bracket_pos_size_t = (size_t)bracket_pos + sizeof(size_t);
|
||||
|
||||
if(fwrite(&bracket_pos_size_t, sizeof(bracket_pos_size_t), 1, intermediate_representation_file) != 1)
|
||||
{
|
||||
fprintf(stderr, "Error writing file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
|
||||
if(fseek(intermediate_representation_file, bracket_pos, SEEK_SET))
|
||||
{
|
||||
fprintf(stderr, "Error seeking file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
|
||||
size_t corresponding_bracket_pos_size_t = corresponding_bracket_pos;
|
||||
if(fwrite(&corresponding_bracket_pos_size_t, sizeof(corresponding_bracket_pos_size_t), 1, intermediate_representation_file) != 1)
|
||||
{
|
||||
fprintf(stderr, "Error writing file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
|
||||
switch(operation)
|
||||
{
|
||||
case MEM_POINTER_ADD_NB:
|
||||
case MEM_POINTER_SUB_NB:
|
||||
case MEM_ADD_NB:
|
||||
case MEM_SUB_NB:
|
||||
case JUMP_IF_NOT_0:
|
||||
fseek(intermediate_representation_file, sizeof(size_t), SEEK_CUR);
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
bracket_nb++;
|
||||
}
|
||||
}
|
||||
|
||||
rewind(intermediate_representation_file);
|
||||
rewind(stripped_file);
|
||||
|
||||
// Program memory
|
||||
uint8_t mem[DATA_SIZE_MAX] = {0};
|
||||
size_t mem_pointer = 0;
|
||||
|
||||
size_t nb_read;
|
||||
size_t operand;
|
||||
size_t bracket_index = 0;
|
||||
|
||||
while(true)
|
||||
{
|
||||
operation_t operation;
|
||||
nb_read = fread(&operation, sizeof(operation), 1, intermediate_representation_file);
|
||||
int c = fgetc(stripped_file);
|
||||
|
||||
if(nb_read != 1)
|
||||
if(c == EOF)
|
||||
{
|
||||
if(feof(intermediate_representation_file))
|
||||
int err = ferror(stripped_file);
|
||||
|
||||
if(err)
|
||||
{
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
fprintf(stderr, "Error reading file: %d\n", ferror(intermediate_representation_file));
|
||||
fprintf(stderr, "Error reading file: %d\n", ferror(stripped_file));
|
||||
goto end;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
switch(operation)
|
||||
if(c == '[' || c == ']')
|
||||
{
|
||||
if(c == '[' ? !mem[mem_pointer] : mem[mem_pointer])
|
||||
{
|
||||
bracket_index = brackets_correspondances[bracket_index];
|
||||
fseek(stripped_file, brackets_pos[bracket_index], SEEK_SET);
|
||||
}
|
||||
}
|
||||
else if(c == '>')
|
||||
{
|
||||
case MEM_POINTER_ADD:
|
||||
mem_pointer++;
|
||||
break;
|
||||
|
||||
case MEM_POINTER_ADD_NB:
|
||||
nb_read = fread(&operand, sizeof(operand), 1, intermediate_representation_file);
|
||||
if(nb_read != 1)
|
||||
{
|
||||
fprintf(stderr, "Error reading file: %d\n", ferror(intermediate_representation_file));
|
||||
goto end;
|
||||
}
|
||||
mem_pointer += operand;
|
||||
break;
|
||||
|
||||
case MEM_POINTER_SUB:
|
||||
}
|
||||
else if(c == '<')
|
||||
{
|
||||
mem_pointer--;
|
||||
break;
|
||||
|
||||
case MEM_POINTER_SUB_NB:
|
||||
nb_read = fread(&operand, sizeof(operand), 1, intermediate_representation_file);
|
||||
if(nb_read != 1)
|
||||
{
|
||||
fprintf(stderr, "Error reading file: %d\n", ferror(intermediate_representation_file));
|
||||
goto end;
|
||||
}
|
||||
mem_pointer -= operand;
|
||||
break;
|
||||
|
||||
case MEM_ADD:
|
||||
}
|
||||
else if(c == '+')
|
||||
{
|
||||
mem[mem_pointer]++;
|
||||
break;
|
||||
|
||||
case MEM_ADD_NB:
|
||||
nb_read = fread(&operand, sizeof(operand), 1, intermediate_representation_file);
|
||||
if(nb_read != 1)
|
||||
{
|
||||
fprintf(stderr, "Error reading file: %d\n", ferror(intermediate_representation_file));
|
||||
goto end;
|
||||
}
|
||||
mem[mem_pointer] += operand;
|
||||
break;
|
||||
|
||||
case MEM_SUB:
|
||||
}
|
||||
else if(c == '-')
|
||||
{
|
||||
mem[mem_pointer]--;
|
||||
break;
|
||||
|
||||
case MEM_SUB_NB:
|
||||
nb_read = fread(&operand, sizeof(operand), 1, intermediate_representation_file);
|
||||
if(nb_read != 1)
|
||||
{
|
||||
fprintf(stderr, "Error reading file: %d\n", ferror(intermediate_representation_file));
|
||||
goto end;
|
||||
}
|
||||
mem[mem_pointer] -= operand;
|
||||
break;
|
||||
|
||||
case JUMP_IF_0:
|
||||
if(mem[mem_pointer] == 0)
|
||||
{
|
||||
nb_read = fread(&operand, sizeof(operand), 1, intermediate_representation_file);
|
||||
if(nb_read != 1)
|
||||
{
|
||||
fprintf(stderr, "Error reading file: %d\n", ferror(intermediate_representation_file));
|
||||
goto end;
|
||||
}
|
||||
|
||||
if(fseek(intermediate_representation_file, operand, SEEK_SET))
|
||||
{
|
||||
fprintf(stderr, "Error seeking file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if(fseek(intermediate_representation_file, sizeof(size_t), SEEK_CUR))
|
||||
{
|
||||
fprintf(stderr, "Error seeking file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case JUMP_IF_NOT_0:
|
||||
if(mem[mem_pointer])
|
||||
{
|
||||
nb_read = fread(&operand, sizeof(operand), 1, intermediate_representation_file);
|
||||
if(nb_read != 1)
|
||||
{
|
||||
fprintf(stderr, "Error reading file: %d\n", ferror(intermediate_representation_file));
|
||||
goto end;
|
||||
}
|
||||
|
||||
if(fseek(intermediate_representation_file, operand, SEEK_SET))
|
||||
{
|
||||
fprintf(stderr, "Error seeking file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
if(fseek(intermediate_representation_file, sizeof(size_t), SEEK_CUR))
|
||||
{
|
||||
fprintf(stderr, "Error seeking file: %d\n", errno);
|
||||
goto end;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case PRINT_CHAR:
|
||||
}
|
||||
else if(c == '.')
|
||||
{
|
||||
putchar(mem[mem_pointer]);
|
||||
break;
|
||||
fflush(stdout);
|
||||
}
|
||||
else if(c == ',')
|
||||
{
|
||||
/*
|
||||
static int next_input = -1;
|
||||
int input;
|
||||
|
||||
case GET_CHAR:
|
||||
if(next_input != -1)
|
||||
{
|
||||
input = next_input;
|
||||
next_input = -1;
|
||||
}
|
||||
else
|
||||
{
|
||||
input = getchar();
|
||||
}
|
||||
|
||||
next_input = getchar();
|
||||
|
||||
if(input != '\n')
|
||||
{
|
||||
mem[mem_pointer] = input;
|
||||
}
|
||||
else
|
||||
{
|
||||
if(next_input == '\n')
|
||||
{
|
||||
mem[mem_pointer] = '\n';
|
||||
}
|
||||
|
||||
next_input = -1;
|
||||
}
|
||||
*/
|
||||
mem[mem_pointer] = getchar();
|
||||
break;
|
||||
}
|
||||
|
||||
default:
|
||||
fprintf(stderr, "Invalid operation : %02d\n", operation);
|
||||
goto end;
|
||||
if(c == '[' || c == ']')
|
||||
{
|
||||
bracket_index++;
|
||||
}
|
||||
}
|
||||
|
||||
status = EXIT_SUCCESS;
|
||||
|
||||
end:
|
||||
if(intermediate_representation_file != NULL)
|
||||
if(stripped_file != NULL)
|
||||
{
|
||||
if(fclose(intermediate_representation_file))
|
||||
if(fclose(stripped_file))
|
||||
{
|
||||
fprintf(stderr, "Error closing tmp file: %d\n", errno);
|
||||
fprintf(stderr, "Failed to close tmp file: %d\n", errno);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -534,9 +273,13 @@ end:
|
|||
{
|
||||
if(fclose(program_file))
|
||||
{
|
||||
fprintf(stderr, "Error closing tmp file: %d\n", errno);
|
||||
fprintf(stderr, "Failed to close tmp file: %d\n", errno);
|
||||
}
|
||||
}
|
||||
|
||||
clock_t end_time = clock();
|
||||
|
||||
fprintf(stderr, "\nExecution time : %fs\n", (float)(end_time - start_time) / (float)CLOCKS_PER_SEC);
|
||||
|
||||
return status;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue