c++ - Having a pair how to find if its part of some pair in map? -



c++ - Having a pair<string, string> how to find if its part of some pair in map<string, string>? -

we have pair of strings illustration such pair accept-language : ru , , search thru map, illustration of http request headers. ned know if there such pair in map or not - bool value. how soft search meaning not need find exact same pair pair accept-language : ru-ru,ru;q=0.8,en-us;q=0.6,en;q=0.4 valid pair , if such exists can think have found our map contains our pair. how create function performing such search in c++?

first of all, if using map, cannot have multiple entries same key. e.g. can't have both accept-language : ru , accept-language : ru-ru,ru;q=0.8,en-us;q=0.6,en;q=0.4 because have same key `accept-language'. perhaps in case should utilize vector of pairs, or multimap.

next, question consists of 2 parts:

how check, whether element (such string or pair) matches pattern. assuming have such check, how apply each element in container.

the solutions each part:

you can implement function takes string, or pair (depends on type of container , stored element choose), , checks whether matches criteria. can find functions such string::find_first_of useful matter. regex libraries can more helpful, though not part of stl. you can apply function on every element of container using find_if algorithm.

c++ search stdmap std-pair

Comments

Post a Comment

Popular posts from this blog

iphone - Dismissing a UIAlertView -

iphone - Dismissing a UIAlertView - i set in app purchase app, , when user taps button, purchase started. basically, tap button, , depending on speed on net connection, waiting 10 seconds until new alert view comes asking if purchase product. user tap button multiple times since nil came up, , multiple purchase alert views come up. additionally, maybe seen user app bug. in end, problem. i want alert view come spinning wheel says "loading..." when users taps purchase button. problem is, how dismiss when new alert view comes asking user if want purchase product? if ([uialertview alloc] says: @"whatever apple's alert view says") { //dismiss "loading..." alert view here } i uncertainty work, input appreciated. thanks! you need have access alertview. can this. create alertview instance var in app delegate , when want show loading initialize instance var assign property , when want dismiss phone call [alertviewinstance d...
Read more

intellij idea - Update external libraries with intelij and java -

intellij idea - Update external libraries with intelij and java - simple plenty really. i'm using apache jars, i'll create changes jar's every often. these jars listed external libs in intelij (i.e classpath looking install dir of jar's). when create changes intelij doesn't seem know new implementation. have remove jar external library , re-ad it. does know have intelij picks changes automatically ? i've done clean , rebuild project had little effect. you can go preferences -> build, execution, deployment -> build tools -> maven -> importing , check box says import maven projects automatically . in mac, can command + shift + a , come in action reimport , click on reimport maven projects . intellij-idea
Read more

javascript - send data from a new window to previous window in php -

javascript - send data from a new window to previous window in php - i have image in main.php file : <img src="..\images\image.gif" class="cur" onclick="imgwin();"> when click on image below function has called : function imgwin() { imagewin=window.open("../pages/img.php","imagewin","toolbar=no,width=500,height=200,directories=no,menubar=no,scrollbars=yes"); } this function opens img.php in new window img.php file : <html> <head> <title>upload image</title> </head> <body> <form name="imgform" method="get" action="#"> address : <input type="file" name="imgurl" size="50"> description : <input type="text" name="description" size="50"> <input type="submit" value="sumbit...
Read more