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#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "util.h"
void eprintf(const char *format, ...) {
// send that shi to stderr
va_list args;
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
}
void error_out(const char *format, ...) {
va_list args;
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
fprintf(stderr, "\n");
exit(1);
}
void* emalloc(size_t size, char* alloc_reason) {
void* d = malloc(size);
if (d == NULL) error_out("Failed to allocate %s", alloc_reason);
return d;
}
char* vastrcat_(int dummy, ...) {
va_list args;
va_list args2;
va_start(args, dummy);
va_copy(args2, args);
// get len of output string
size_t len = 0;
while (1) {
char* arg = va_arg(args, char*);
if (!arg) break;
len += strlen(arg);
}
va_end(args);
// allocate and build output
char* output = malloc(len + 1);
char* p = output;
while (1) {
char* arg = va_arg(args2, char*);
if (!arg) break;
memcpy(p, arg, strlen(arg));
p += strlen(arg);
}
va_end(args2);
return output;
}
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