Leonardo Zide
83 lines
1.1 KiB
C++
83 lines
1.1 KiB
C++
#include "lc_global.h"
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#include "lc_string.h"
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char* lcstrcasestr(const char* s, const char* find)
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{
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char c, sc;
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if ((c = *find++) != 0)
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{
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c = tolower((unsigned char)c);
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const int len = (int)strlen(find);
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do
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{
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do
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{
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if ((sc = *s++) == 0)
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return (nullptr);
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} while ((char)tolower((unsigned char)sc) != c);
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} while (qstrnicmp(s, find, len) != 0);
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s--;
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}
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return ((char *)s);
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}
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char* lcstrupr(char* string)
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{
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for (char* c = string; *c; c++)
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*c = toupper(*c);
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return string;
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}
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size_t lcstrcpy(char* dest, const char* source, size_t size)
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{
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if (size == 0)
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return 0;
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for (size_t i = 0; i < size; i++)
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{
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dest[i] = source[i];
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if (source[i] == '\0')
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{
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return i;
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}
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}
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dest[--size] = '\0';
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return size;
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}
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size_t lcstrcat(char* dest, const char* source, size_t size)
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{
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char* d = dest;
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const char* s = source;
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size_t n = size;
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size_t dlen;
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while (n-- != 0 && *d != '\0')
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d++;
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dlen = d - dest;
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n = size - dlen;
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if (n == 0)
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return(dlen + strlen(s));
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while (*s != '\0')
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{
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if (n != 1)
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{
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*d++ = *s;
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n--;
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}
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s++;
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}
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*d = '\0';
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return (dlen + (s - source));
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}
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