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文字列(string)から特定の文字を削除する方法

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文字列(string)から空白や特定の文字を削除する方法。


//空白を削除する場合
string testString = " a b c d ";
for(size_t c = testString.find_first_of(" "); c != string::npos; c = c = testString.find_first_of(" ")){
    testString.erase(c,1);
}
printf("%s\n",testString.c_str());

//空白とeを削除する場合
testString = " a eb c ed ";
for(size_t c = testString.find_first_of(" e"); c != string::npos; c = c = testString.find_first_of(" e")){
    testString.erase(c,1);
}
printf("%s\n",testString.c_str());

printfは両方とも
abcd
と出力されるはず。for文の所はwhileで書いた方が見やすいかも(変数cが外に出るのは嫌だけど)。

size_t c;
while((c = testString.find_first_of(" ")) != string::npos){
  testString.erase(c,1);
}
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