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util/cutils: New qemu_strtosz_metric()

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To parse numbers with metric suffixes, we use

qemu_strtosz_suffix_unit(nptr, &eptr, QEMU_STRTOSZ_DEFSUFFIX_B, 1000)

Capture this in a new function for legibility:

qemu_strtosz_metric(nptr, &eptr)

Replace test_qemu_strtosz_suffix_unit() by test_qemu_strtosz_metric().

Rename qemu_strtosz_suffix_unit() to do_strtosz() and give it internal
linkage.

Backports commit d2734d2629266006b0413433778474d5801c60be from qemu
This commit is contained in:
Markus Armbruster 2018-03-02 08:47:39 -05:00 • committed by Lioncash
parent fb962d2e74
commit f656cd91ec
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GPG key ID: 4E3C3CC1031BA9C7
3 changed files with 11 additions and 7 deletions
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4
qemu/include/qemu/cutils.h
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@ -147,8 +147,8 @@ int qemu_strtou64(const char *nptr, const char **endptr, int base,
int64_t qemu_strtosz(const char *nptr, char **end);
int64_t qemu_strtosz_suffix(const char *nptr, char **end,
const char default_suffix);
int64_t qemu_strtosz_suffix_unit(const char *nptr, char **end,
const char default_suffix, int64_t unit);
int64_t qemu_strtosz_metric(const char *nptr, char **end);
#define K_BYTE (1ULL << 10)
#define M_BYTE (1ULL << 20)
#define G_BYTE (1ULL << 30)