47 lines
960 B
C++
47 lines
960 B
C++
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#include <string.h>
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extern "C"
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{
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void* memcpy(void* dest, const void* src, size_t n)
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{
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for (size_t i = 0; i < n; ++i) { *((char*)dest + i) = *((char*)src + i); }
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return dest;
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}
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void* memset(void* dest, int c, size_t n)
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{
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for (size_t i = 0; i < n; ++i) { *((char*)dest + i) = (char)c; }
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return dest;
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}
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size_t strlen(const char* s)
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{
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const char* i = s;
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for (; *i; ++i)
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;
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return (i - s);
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}
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char* strcpy(char* dest, const char* src)
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{
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memcpy(dest, src, strlen(src) + 1);
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return dest;
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}
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char* strcat(char* dest, const char* src)
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{
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size_t dest_len = strlen(dest);
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size_t i;
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for (i = 0; *(src + i); i++) *(char*)(dest + dest_len + i) = *(char*)(src + i);
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*(char*)(dest + dest_len + i) = '\0';
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return dest;
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}
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char* strchr(const char*, int)
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{
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return 0;
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}
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}
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