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C++ <cstdlib>
The C++ <cstdlib> header file declares a set of general-purpose functions such as: atof() to convert string to double. It also contains a few mathematical functions. For example, abs() to find the absolute value of a number.
Converts String to Double
performs binary search on sorted array
allocates block of memory and initializes to zero
Returns absolute value of an integer
computes integral quotient and remainder of number
deallocates a block of memory
returns pointer to environment variable passed
returns absolute value of long or long int number
Allocates a block of unitialized memory
sorts array using quick-sort algorithm
reallocates a block of previously allocated memory
Seeds pseudo random number for rand()
Converts a string to number
converts string to unsigned long long int