53 lines
875 B
C
53 lines
875 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* From lib/cmdline.c
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*/
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#include <stdlib.h>
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#if __has_attribute(__fallthrough__)
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# define fallthrough __attribute__((__fallthrough__))
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#else
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# define fallthrough do {} while (0) /* fallthrough */
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#endif
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unsigned long long memparse(const char *ptr, char **retptr)
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{
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char *endptr; /* local pointer to end of parsed string */
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unsigned long long ret = strtoll(ptr, &endptr, 0);
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switch (*endptr) {
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case 'E':
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case 'e':
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ret <<= 10;
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fallthrough;
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case 'P':
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case 'p':
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ret <<= 10;
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fallthrough;
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case 'T':
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case 't':
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ret <<= 10;
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fallthrough;
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case 'G':
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case 'g':
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ret <<= 10;
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fallthrough;
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case 'M':
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case 'm':
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ret <<= 10;
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fallthrough;
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case 'K':
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case 'k':
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ret <<= 10;
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endptr++;
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fallthrough;
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default:
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break;
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}
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if (retptr)
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*retptr = endptr;
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return ret;
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}
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