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#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "util.h"
#if DEBUG
void _log(int line, const char* file, const char* format, ...) {
fprintf(stderr, "%s:%d: info: ", file, line);
#else
void _log(const char* format, ...) {
#endif
va_list args;
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
}
#if DEBUG
void _die(int line, const char* file, const char* format, ...) {
fprintf(stderr, "%s:%d: error: ", file, line);
#else
void _die(const char* format, ...) {
#endif
va_list args;
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
exit(1);
}
void* emalloc(size_t size, char* alloc_reason) {
void* d = malloc(size);
if (d == NULL) die("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;
char* arg = NULL;
while ((arg = va_arg(args, char*))) {
len += strlen(arg);
}
va_end(args);
// allocate and build output
char* output = malloc(len + 1);
if (!output) return NULL;
char* p = output;
while ((arg = va_arg(args, char*))) {
size_t alen = strlen(arg);
memcpy(p, arg, alen);
p += alen;
}
output[len] = '\0';
va_end(args2);
return output;
}
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