| // Copyright 2016 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <ctype.h> |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| |
| #define ATOx(T, fn) \ |
| T fn(const char* nptr) { \ |
| while (nptr && isspace(*nptr)) { \ |
| nptr++; \ |
| } \ |
| \ |
| bool neg = false; \ |
| if (*nptr == '-') { \ |
| neg = true; \ |
| nptr++; \ |
| } \ |
| \ |
| T ret = 0; \ |
| for (; nptr; nptr++) { \ |
| if (!isdigit(*nptr)) \ |
| break; \ |
| ret = 10 * ret + (*nptr - '0'); \ |
| } \ |
| \ |
| if (neg) \ |
| ret = -ret; \ |
| return ret; \ |
| } |
| |
| ATOx(int, atoi) ATOx(long, atol) ATOx(long long, atoll) |
