ESQL/C functions for string conversion

The function library provides the following functions that facilitate conversion of values in character data types (such as mi_string or mi_char) to and from some C-language data types.
rstod()
Converts a string to a double type
rstoi()
Converts a null-terminated string to a two-byte integer (int2)
rstol()
Converts a string to a four-byte integer (int4)
In addition, the library provides the following functions to convert text representation of values to their binary representation.
Type of string More information
INT8 strings Convert INT8 values
Decimal strings ESQL/C functions for decimal conversion
Date strings ESQL/C functions for date conversion
Date and time strings ESQL/C functions for date, time, and interval conversion