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#include "fmt.h"
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unsigned int fmt_human(char* dest,unsigned long long l) {
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char unit;
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int i;
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if (l<1000) return fmt_ulong(dest,l);
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if (l>1000000000000ull) {
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/* dang! overflow! */
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l/=1000;
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l=(l+50000000)/100000000;
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unit='T';
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} else if (l>1000000000) {
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l=(l+50000000)/100000000;
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unit='G';
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} else if (l>1000000) {
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l=(l+50000)/100000;
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unit='M';
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} else {
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l=(l+50)/100;
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unit='k';
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}
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if (!dest) return fmt_ulong(0,l)+2;
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i=fmt_ulong(dest,l/10);
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dest[i]='.';
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dest[i+1]=(l%10)+'0';
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dest[i+2]=unit;
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return i+3;
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}
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