RAD Studio VCL Reference
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AnsiStrings.CompareStr Function

Compare two strings with case-sensitivity.

Pascal
function CompareStr(const S1: AnsiString; const S2: AnsiString): Integer; overload;
function CompareStr(const S1: AnsiString; const S2: AnsiString; LocaleOptions: TLocaleOptions): Integer; overload;
C++
int CompareStr(const AnsiString S1, const AnsiString S2);
int CompareStr(const AnsiString S1, const AnsiString S2, TLocaleOptions LocaleOptions);

CompareStr compares the strings S1 to S2, with case-sensitivity. The return value is less than 0 if S1 < S2, 0 if S1 = S2, or greater than 0 if S1 > S2. The compare operation is based on the 8-bit ordinal value of each character and is not affected by the current user locale.  

Use CompareText to compare strings without case-sensitivity. 

Use AnsiCompareStr to compare strings for the current user locale. 

 

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