(svn r1821) Move generic string handling functions to string.[ch] and introduce stre{cpy,cat}, see string.h for their semantics
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#include "stdafx.h"
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#include "string.h"
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void ttd_strlcat(char *dst, const char *src, size_t size)
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{
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assert(size > 0);
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for (; size > 0 && *dst != '\0'; --size, ++dst) {}
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assert(size > 0);
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while (--size > 0 && *src != '\0') *dst++ = *src++;
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*dst = '\0';
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}
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void ttd_strlcpy(char *dst, const char *src, size_t size)
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{
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assert(size > 0);
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while (--size > 0 && *src != '\0') *dst++ = *src++;
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*dst = '\0';
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}
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char* strecat(char* dst, const char* src, const char* last)
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{
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assert(last == NULL || dst <= last);
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for (; *dst != '\0'; ++dst)
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if (dst == last) return dst;
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for (; *src != '\0' && dst != last; ++dst, ++src) *dst = *src;
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*dst = '\0';
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return strecpy(dst, src, last);
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}
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char* strecpy(char* dst, const char* src, const char* last)
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{
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assert(last == NULL || dst <= last);
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for (; *src != '\0' && dst != last; ++dst, ++src) *dst = *src;
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*dst = '\0';
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return dst;
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}
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@ -0,0 +1,24 @@
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#ifndef STRING_H
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#define STRING_H
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/*
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* dst: destination buffer
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* src: string to copy/concatenate
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* size: size of the destination buffer
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* usage: ttd_strlcpy(dst, src, lengthof(dst));
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*/
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void ttd_strlcat(char *dst, const char *src, size_t size);
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void ttd_strlcpy(char *dst, const char *src, size_t size);
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/*
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* dst: destination buffer
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* src: string to copy
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* last: pointer to the last element in the dst array
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* if NULL no boundary check is performed
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* returns a pointer to the terminating \0 in the destination buffer
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* usage: strecpy(dst, src, lastof(dst));
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*/
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char* strecat(char* dst, const char* src, const char* last);
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char* strecpy(char* dst, const char* src, const char* last);
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#endif
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