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std::strncat(3) C++ Standard Libary std::strncat(3) NAME std::strncat - std::strncat Synopsis Defined in header <cstring> char *strncat( char *dest, const char *src, std::size_t count ); Appends a byte string pointed to by src to a byte string pointed to by dest. At most count characters are copied. The resulting byte string is null-ter- minated. The destination byte string must have enough space for the contents of both dest and src plus the terminating null character, except that the size of src is limited to count. The behavior is undefined if the strings overlap. Parameters dest - pointer to the null-terminated byte string to append to src - pointer to the null-terminated byte string to copy from count - maximum number of characters to copy Return value dest Notes Because strncat needs to seek to the end of dest on each call, it is inefficient to concatenate many strings into one using strncat. Example // Run this code #include <cstring> #include <cstdio> int main() { char str[50] = "Hello "; char str2[50] = "World!"; std::strcat(str, str2); std::strncat(str, " Goodbye World!", 3); std::puts(str); } Output: Hello World! Go See also strcat concatenates two strings (function) strcpy copies one string to another (function) http://cppreference.com 2022.07.31 std::strncat(3)
NAME | Synopsis | Parameters | Return value | Notes | Example | Output: | See also
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