Calculates the input while respecting operator precedence, parentheses, etc. Not designed to be useful.
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698 B

/* vim: set filetype=c: */
#include "error.h"
#include <assert.h>
Result Result_err(char* err_str) {
Result res;
res.has_err = true;
res.err_str = err_str;
return res;
Result Result_noerr() {
Result res;
res.has_err = false;
res.err_str = NULL;
return res;
extern void Result_print_err_or(const Result obj, const char* err_prefix, const char* no_err, FILE* err_file, FILE* no_err_file) {
if(obj.has_err) {
if(err_prefix != NULL)
fprintf(err_file, "%s", err_prefix);
assert(obj.err_str != NULL);
fprintf(err_file, "%s\n", obj.err_str);
else if(no_err != NULL)
fprintf(no_err_file, "%s\n", no_err);