annotate target-utils/libc/strncat.c @ 416:30f6d1c32c6f

doc/Flash-boot-defect article removed (no longer relevant) This article is no longer relevant because the issue in question only affected one (1) defective FCDEV3B board which was not and never will be sold.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 26 Oct 2018 07:11:08 +0000
parents 7fb62fc724dc
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7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * Concatenate s2 on the end of s1. S1's space must be large enough.
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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3 * At most n characters are moved.
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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4 * Return s1.
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5 */
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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6
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7 char *
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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8 strncat(s1, s2, n)
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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9 register char *s1, *s2;
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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10 register n;
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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11 {
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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12 register char *os1;
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13
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14 os1 = s1;
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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15 while (*s1++)
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16 ;
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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17 --s1;
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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18 while (*s1++ = *s2++)
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19 if (--n < 0) {
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20 *--s1 = '\0';
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21 break;
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22 }
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23 return(os1);
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24 }