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checkedcc.c
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checkedcc.c
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#include <stdio.h>
const char *preamble =
"#include <stdio.h>\n"
"#include <stdint.h>\n"
"int main(){\n"
"uint8_t mem[1024*10] = {0};\n"
"uint64_t ptr = 0;\n"
"\n";
const char *postamble =
"return 0;\n"
"}\n"
"\n";
int main(int argc, char **argv) {
puts(preamble);
int c;
while((c = getchar()) != EOF) {
switch(c) {
case '+':
puts("mem[ptr]++;");
break;
case '-':
puts("mem[ptr]--;");
break;
case '<':
puts("if(ptr==0) {fputs(\"pointer underflow\", stderr); return 1;}");
puts("ptr--;");
break;
case '>':
puts("ptr++;");
break;
case '.':
puts("putchar(mem[ptr]);");
break;
case ',':
puts("mem[ptr] = getchar();");
break;
case '[':
puts("while(mem[ptr]){");
break;
case ']':
puts("}");
break;
}
}
puts(postamble);
}