17 lines
318 B
C
17 lines
318 B
C
/*
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* pANS stdio -- ftello
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*/
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#include "iolib.h"
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long long ftello(FILE *f){
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long long seekp=seek(f->fd, 0L, 1);
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if(seekp<0) return -1; /* enter error state? */
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switch(f->state){
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default:
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return seekp;
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case RD:
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return seekp-(f->wp-f->rp);
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case WR:
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return (f->flags&LINEBUF?f->lp:f->wp)-f->buf+seekp;
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}
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}
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