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annotate target-utils/libc/strncmp.c @ 764:26daa2720bda

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doc/DUART28-boot-control: update on the Linux driver patch status
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 06 Dec 2020 04:07:48 +0000
parents 7fb62fc724dc
children
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7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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2 * Compare strings (at most n bytes): s1>s2: >0 s1==s2: 0 s1<s2: <0
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
Mychaela Falconia <falcon@freecalypso.org>
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3 */
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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4
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
Mychaela Falconia <falcon@freecalypso.org>
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5 strncmp(s1, s2, n)
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
Mychaela Falconia <falcon@freecalypso.org>
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6 register char *s1, *s2;
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
Mychaela Falconia <falcon@freecalypso.org>
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7 register n;
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
Mychaela Falconia <falcon@freecalypso.org>
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8 {
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
Mychaela Falconia <falcon@freecalypso.org>
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9 while (--n >= 0 && *s1 == *s2++)
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
Mychaela Falconia <falcon@freecalypso.org>
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10 if (*s1++ == '\0')
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
Mychaela Falconia <falcon@freecalypso.org>
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11 return(0);
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
Mychaela Falconia <falcon@freecalypso.org>
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12 return(n<0 ? 0 : *s1 - *--s2);
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
Mychaela Falconia <falcon@freecalypso.org>
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13 }