37 lines
375 B
C
37 lines
375 B
C
#include "string.h"
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char
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tolower (char s1)
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{
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if (s1 >= 65 && s1 <= 90)
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s1 += 32;
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return s1;
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}
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int
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strlen (const char *str)
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{
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int i = 0;
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while (*str != 0)
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{
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i++;
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str += 1;
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}
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return i;
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}
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int
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strnlen (const char *str, int max)
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{
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int i = 0;
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for (int i = 0; i < max; i++)
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{
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if (str[i] == 0)
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break;
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}
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return i;
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}
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