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28 lines
565 B
28 lines
565 B
#include "str.h"
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unsigned int strlen(char* str) {
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unsigned int len = 0;
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for( char* c = str; *c != '\0'; c++ ) // search for end-of-string
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len++;
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return len;
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}
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char* strcat(char* buf, char* str) {
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unsigned int bufferlen = strlen(buf);
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// remove the 0x0 char from the buffer
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*(buf + bufferlen) = 0x3f; // replace end-of-string
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// with a placeholder
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// concat the str to buf
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int cc = 0;
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for( char* c = str; *c != '\0'; c++ ) {
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*(buf + bufferlen + cc) = *c;
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cc++;
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}
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*(buf + bufferlen + cc) = '\0'; // add end-of-string
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return buf;
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}
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