implement catdup4()
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parent
4a2c32b36e
commit
20492b6b44
28
catdup.c
28
catdup.c
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@ -76,3 +76,31 @@ char * catdup3(const char * s1, const char * s2, const char * s3)
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return buffer;
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}
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char * catdup4(const char * s1, const char * s2, const char * s3, const char * s4)
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{
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char * buffer;
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size_t s1_len, s2_len, s3_len, s4_len;
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ASSERT(s1 != NULL && s2 != NULL && s3 != NULL && s4 != NULL);
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s1_len = strlen(s1);
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s2_len = strlen(s2);
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s3_len = strlen(s3);
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s4_len = strlen(s4);
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buffer = malloc(s1_len + s2_len + s3_len + s4_len + 1);
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if (buffer == NULL)
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{
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log_error("malloc() failed.");
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return NULL;
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}
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memcpy(buffer, s1, s1_len);
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memcpy(buffer + s1_len, s2, s2_len);
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memcpy(buffer + s1_len + s2_len, s3, s3_len);
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memcpy(buffer + s1_len + s2_len + s3_len, s4, s4_len);
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buffer[s1_len + s2_len + s3_len + s4_len] = 0;
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return buffer;
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}
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1
catdup.h
1
catdup.h
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@ -29,5 +29,6 @@
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char * catdup(const char * s1, const char * s2);
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char * catdup3(const char * s1, const char * s2, const char * s3);
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char * catdup4(const char * s1, const char * s2, const char * s3, const char * s4);
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#endif /* #ifndef CATDUP_H__D42302F1_4D96_4EE4_AC09_E97ED5748277__INCLUDED */
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