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Author | SHA1 | Date |
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Flinner Yuu | a8a3cbe224 | 2 years ago |
Flinner Yuu | 8559d002a2 | 2 years ago |
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*.out |
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/* Exercise 5-3. Write a pointer version of the function strcat that we showed
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* in Chapter 2: strcat(s,t) copies the string t to the end of s. */ |
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#include <ctype.h> |
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#include <stdio.h> |
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// version 1
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void my_strcat1(char *s, char *t) { |
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while (*s) |
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s++; // go to end of s
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while ((*s = *t) != '\0') { |
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s++; |
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t++; |
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} |
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} |
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// version 2
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void my_strcat2(char *s, char *t) { |
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while (*s) |
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s++; // go to end of s
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while ((*s++ = *t++)) |
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; // then copy
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} |
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int main() { |
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char s[50] = "Hello, "; |
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char t[] = "world!"; |
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my_strcat2(s, t); |
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printf("%s\n", s); |
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return 0; |
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} |
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