Convert a character to its ascii code

[ssimop]

I am looking for a function which converts a character to it equivalent ascii code, i.e. "a" to 97. Could you please advise?

[Gintaras]

Like in C++. A string is array of bytes, and array elements are accessed using [].

str "a"
int c=a[0]

or

int c='a'

[ssimop]

Many thanks for an accurate, valid and prompt reply, actually as usually with Gintaras