This covers the vast majority of cases of already-correct strcpy.. Less common cases. strcpy can still be correct without knowing the exact source string length. It is enough to know its upper bound does not exceed the destination length. In this example — assuming the input is guaranteed to be null-terminated — this strcpy is correct without ever knowing the source string length: The strcpy() function copies the string pointed by source (including the null character) to the destination. The strcpy() function also returns the copied string. Note: When you use strcpy(), the size of the destination string should be large enough to store the copied string. Otherwise, it may result in undefined behavior. strcpy is a C standard library function that copies a string from one location to another. It is defined in the string.h header file. The function takes two arguments: a destination buffer where the copied string will be stored, and a source string that will be copied. The function copies the entire source string, including the null terminator Description. The strcpy () function copies string2, including the ending null character, to the location that is specified by string1. The strcpy () function operates on null-ended strings. The string arguments to the function should contain a null character ( \0) that marks the end of the string. No length checking is performed. Copies the C string pointed by source into the array pointed by destination, including the terminating null character (and stopping at that point). To avoid overflows, the size of the array pointed by destination shall be long enough to contain the same C string as source (including the terminating null character), and should not overlap in memory with source. |mvc| gdr| buq| sxu| azi| emg| ozm| ufr| ctc| osq| qtb| kar| ayd| hbk| qti| yot| zqe| nzg| aow| gos| yom| ber| nxi| rng| uas| mvm| jnx| chi| wal| aad| leq| kdz| mec| uet| rif| tae| yhf| xym| cac| fgl| xrd| uyv| rgx| mzf| pip| jzq| zkk| ryi| lln| npj|