82b9f2baec
Adds a safe strtol helper function, modeled loosely after Wayland scanner's strtouint. This encapsulates the various quirks of strtol behavior, and streamlines the interface to just handling base-10 numbers with a simple true/false error indicator and a uint32_t return by reference. Test cases are loosely derived from an earlier patch by Imran Zaman. Signed-off-by: Bryce Harrington <bryce@osg.samsung.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
/*
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* Copyright © 2016 Samsung Electronics Co., Ltd
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <assert.h>
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#include "shared/string-helpers.h"
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#include "weston-test-client-helper.h"
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TEST(strtol_conversions)
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{
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bool ret;
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int32_t val = -1;
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char *str = NULL;
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str = ""; val = -1;
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ret = safe_strtoint(str, &val);
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assert(ret == false);
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assert(val == -1);
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str = "."; val = -1;
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ret = safe_strtoint(str, &val);
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assert(ret == false);
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assert(val == -1);
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str = "42"; val = -1;
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ret = safe_strtoint(str, &val);
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assert(ret == true);
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assert(val == 42);
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str = "-42"; val = -1;
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ret = safe_strtoint(str, &val);
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assert(ret == true);
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assert(val == -42);
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str = "0042"; val = -1;
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ret = safe_strtoint(str, &val);
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assert(ret == true);
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assert(val == 42);
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str = "x42"; val = -1;
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ret = safe_strtoint(str, &val);
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assert(ret == false);
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assert(val == -1);
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str = "42x"; val = -1;
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ret = safe_strtoint(str, &val);
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assert(ret == false);
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assert(val == -1);
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str = "0x42424242"; val = -1;
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ret = safe_strtoint(str, &val);
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assert(ret == false);
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assert(val == -1);
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str = "424748364789L"; val = -1;
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ret = safe_strtoint(str, &val);
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assert(ret == false);
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assert(val == -1);
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}
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