Append repeatedly to the specified string the optionally specified padChar until string has the specified length. If padChar is not specified the space (` ) character is appended. This operation has no effect if `string.size() >= length. The behavior is undefined unless 0 <= length.
Synopsis
Declared in <bdlb_string.h>
static
void
pad(
bsl::string* string,
int length,
char padChar = ' ');
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