Last change
on this file since cbe2c15 was f40a309, checked in by Thomas Lopatic <thomas@…>, 7 years ago |
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File size:
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[f40a309] | 1 | /*
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| 2 | ============================================================================
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| 3 | ungetc.c -- 'unget' a character
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| 4 | Version 2 -- 1987-06-26 -- D.N. Lynx Crowe
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| 5 | ============================================================================
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| 6 | */
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| 7 |
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| 8 | #include "stdio.h"
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| 9 | #include "stddefs.h"
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| 10 |
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| 11 | int
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| 12 | ungetc(c, ptr)
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| 13 | register int c;
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| 14 | register FILE *ptr;
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| 15 | {
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| 16 | if ((c EQ EOF) OR (ptr->_bp LE ptr->_buff))
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| 17 | return(EOF);
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| 18 |
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| 19 | *--ptr->_bp = c;
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| 20 |
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| 21 | return(c);
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| 22 | }
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