| // Copyright 2012 Google Inc. All Rights Reserved. |
| // |
| // Use of this source code is governed by a BSD-style license |
| // that can be found in the COPYING file in the root of the source |
| // tree. An additional intellectual property rights grant can be found |
| // in the file PATENTS. All contributing project authors may |
| // be found in the AUTHORS file in the root of the source tree. |
| // ----------------------------------------------------------------------------- |
| // |
| // Utility functions used by the example programs. |
| // |
| |
| #include "./example_util.h" |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| //------------------------------------------------------------------------------ |
| // String parsing |
| |
| uint32_t ExUtilGetUInt(const char* const v, int base, int* const error) { |
| char* end = NULL; |
| const uint32_t n = (v != NULL) ? (uint32_t)strtoul(v, &end, base) : 0u; |
| if (end == v && error != NULL && !*error) { |
| *error = 1; |
| fprintf(stderr, "Error! '%s' is not an integer.\n", |
| (v != NULL) ? v : "(null)"); |
| } |
| return n; |
| } |
| |
| int ExUtilGetInt(const char* const v, int base, int* const error) { |
| return (int)ExUtilGetUInt(v, base, error); |
| } |
| |
| float ExUtilGetFloat(const char* const v, int* const error) { |
| char* end = NULL; |
| const float f = (v != NULL) ? (float)strtod(v, &end) : 0.f; |
| if (end == v && error != NULL && !*error) { |
| *error = 1; |
| fprintf(stderr, "Error! '%s' is not a floating point number.\n", |
| (v != NULL) ? v : "(null)"); |
| } |
| return f; |
| } |