Parse the specified inputString for an optional sign followed by a sequence of characters representing digits in the specified base, consuming the maximum that will form a number whose value is less than or equal to the specified maxValue and greater than or equal to the specified minValue. Place into the specified result the extracted value. Optionally specify remainder, in which to store the remainder of the inputString immediately following the successfully parsed text, or the position at which a parse failure was detected. Return 0 on success, and a non-zero value otherwise. The value of result is unchanged if a parse failure occurs. The behavior is undefined unless maxValue a positive integer, and minValue is negative (this is required to allow for efficient implementation). The behavior is also undefined unless 2 <= base and base <= 36, (i.e., bases where digits are representable by characters [ 0 .. 9 ], [ a .. z ] or [ A .. Z ]).
Declared in <bdlb_numericparseutil.h>
static
int
parseSignedInteger(
bsls::Types::Int64* result,
std::string_view const& inputString,
int base,
bsls::Types::Int64 const minValue,
bsls::Types::Int64 const maxValue);A parse failure can occur for the following reasons: 1. The parsed string is not a <NUMBER>, i.e., does not contain an optional sign followed by at least one digit. 2. The first digit in inputString is larger than maxValue or smaller than minValue. 3. The first digit is not a valid number for the base.