Comparing and Sorting Strings
The fstremp and fstrempi functions allow applications to compare and sort strings based on the language specified by the user. These functions take into account different alphabetic orderings, diacritical marks, and special cases that require character compression or expansion.
The comparison done by fstremp and fstrempi is based on a primary value and a secondary value. Each character has a primary and secondary value. When performing the comparison of two strings, the primary value takes precedence over the secondary value. That is, the secondary value is ignored unless a comparison based on primary value shows the strings as equivalent.
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<出典>「コンピューター英日翻訳講座」 第4回 実践演習課題