Last change
on this file since 9bf0f86 was f40a309, checked in by Thomas Lopatic <thomas@…>, 7 years ago |
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File size:
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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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