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72 lines
2.0 KiB
72 lines
2.0 KiB
/* ----------------------------------------------------------------------- * |
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* |
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* Copyright 2007-2009 H. Peter Anvin - All Rights Reserved |
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* Copyright 2009 Intel Corporation; author: H. Peter Anvin |
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* |
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* Permission is hereby granted, free of charge, to any person |
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* obtaining a copy of this software and associated documentation |
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* files (the "Software"), to deal in the Software without |
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* restriction, including without limitation the rights to use, |
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* copy, modify, merge, publish, distribute, sublicense, and/or |
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* sell copies of the Software, and to permit persons to whom |
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* the Software is furnished to do so, subject to the following |
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* conditions: |
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* |
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* The above copyright notice and this permission notice shall |
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* be included in all copies or substantial 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 |
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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* OTHER DEALINGS IN THE SOFTWARE. |
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* |
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* ----------------------------------------------------------------------- */ |
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/* |
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* suffix_number.c |
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* |
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* Convert a string of a number with potential SI suffix to int-type |
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*/ |
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#include <stdlib.h> |
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#include <suffix_number.h> |
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/* Get a value with a potential suffix (k/m/g/t/p/e) */ |
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unsigned long long suffix_number(const char *str) |
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{ |
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char *ep; |
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unsigned long long v; |
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int shift; |
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v = strtoull(str, &ep, 0); |
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switch (*ep | 0x20) { |
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case 'k': |
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shift = 10; |
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break; |
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case 'm': |
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shift = 20; |
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break; |
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case 'g': |
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shift = 30; |
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break; |
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case 't': |
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shift = 40; |
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break; |
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case 'p': |
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shift = 50; |
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break; |
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case 'e': |
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shift = 60; |
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break; |
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default: |
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shift = 0; |
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break; |
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} |
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v <<= shift; |
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return v; |
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}
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