C库函数，将二进制字节数组转换为整数，并进行各种转换

Is there a set of C library functions (or non-library functions collected somewhere) which allow conversion of byte-array data into integers with various conversions (big-endian data, little-endian data, one's complement signing, two's complement signing, et cetera), taking into account the machine's own endianness?Is there a set of C library functions (or non-l