[{"data":1,"prerenderedAt":1015},["ShallowReactive",2],{"global-navigation":3,"page-\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fexpressions-exp\u002Fexp06-pl":28,"surround-\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fexpressions-exp\u002Fexp06-pl":630,"sidebar-sei-cert-perl-coding-standard":638},[4,8],{"title":5,"path":6,"_path":6,"fromAppConfig":7},"Home","\u002F",true,{"title":9,"path":10,"children":11,"_path":27,"fromAppConfig":7},"Coding Standards","\u002Fcoding-standards\u002F",[12,15,18,21,24],{"title":13,"path":14},"Android Coding Standard","\u002Fandroid-secure-coding-standard\u002F",{"title":16,"path":17},"C Coding Standard","\u002Fsei-cert-c-coding-standard\u002F",{"title":19,"path":20},"C++ Coding Standard","\u002Fsei-cert-cpp-coding-standard\u002F",{"title":22,"path":23},"Java Coding Standard","\u002Fsei-cert-oracle-coding-standard-for-java\u002F",{"title":25,"path":26},"Perl Coding Standard","\u002Fsei-cert-perl-coding-standard\u002F","\u002Fcoding-standards",{"id":29,"title":30,"body":31,"description":41,"extension":621,"meta":622,"navigation":7,"path":626,"seo":627,"stem":628,"__hash__":629},"content\u002F7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F3.expressions-exp\u002F6.exp06-pl.md","EXP06-PL. Do not use an array in an implicit scalar context",{"type":32,"value":33,"toc":609},"minimark",[34,38,42,47,50,198,213,217,223,242,245,248,290,293,301,307,343,353,358,363,393,397,400,471,475,503,507,580,583,605],[35,36,30],"h1",{"id":37},"exp06-pl-do-not-use-an-array-in-an-implicit-scalar-context",[39,40,41],"p",{},"Perl has two contexts in which expressions can be evaluated: scalar and list. These contexts determine what the expression generates. It is recommended that the context be made explicit when an expression is evaluated in an unexpected context. Implicit context switching makes programs difficult to read and more error prone.",[43,44,46],"h2",{"id":45},"noncompliant-code-example","Noncompliant Code Example",[39,48,49],{},"This noncompliant code example tries to print out the elements of an array.",[51,52,54],"code-block",{"quality":53},"bad",[55,56,61],"pre",{"className":57,"code":58,"language":59,"meta":60,"style":60},"language-perl shiki shiki-themes github-light github-dark monokai","sub print_array {\n  my $array = shift;\n  print \"( \";\n  foreach $item (@{$array}) {\n    print \"$item , \";\n  }\n  print \")\\n\";\n}\n\nmy @array; # initialize\nmy $array_ref = @array;\nprint_array( $array_ref);\n","perl","",[62,63,64,81,98,110,119,136,142,159,165,171,184,192],"code",{"__ignoreMap":60},[65,66,69,73,77],"span",{"class":67,"line":68},"line",1,[65,70,72],{"class":71},"sq6CD","sub",[65,74,76],{"class":75},"srTi1"," print_array",[65,78,80],{"class":79},"sMOD_"," {\n",[65,82,84,88,91,95],{"class":67,"line":83},2,[65,85,87],{"class":86},"sC2Qs","  my",[65,89,90],{"class":79}," $array = ",[65,92,94],{"class":93},"sTrkL","shift",[65,96,97],{"class":79},";\n",[65,99,101,104,108],{"class":67,"line":100},3,[65,102,103],{"class":93},"  print",[65,105,107],{"class":106},"sstjo"," \"( \"",[65,109,97],{"class":79},[65,111,113,116],{"class":67,"line":112},4,[65,114,115],{"class":86},"  foreach",[65,117,118],{"class":79}," $item (@{$array}) {\n",[65,120,122,125,128,131,134],{"class":67,"line":121},5,[65,123,124],{"class":93},"    print",[65,126,127],{"class":106}," \"",[65,129,130],{"class":79},"$item",[65,132,133],{"class":106}," , \"",[65,135,97],{"class":79},[65,137,139],{"class":67,"line":138},6,[65,140,141],{"class":79},"  }\n",[65,143,145,147,150,154,157],{"class":67,"line":144},7,[65,146,103],{"class":93},[65,148,149],{"class":106}," \")",[65,151,153],{"class":152},"s7F3e","\\n",[65,155,156],{"class":106},"\"",[65,158,97],{"class":79},[65,160,162],{"class":67,"line":161},8,[65,163,164],{"class":79},"}\n",[65,166,168],{"class":67,"line":167},9,[65,169,170],{"emptyLinePlaceholder":7},"\n",[65,172,174,177,180],{"class":67,"line":173},10,[65,175,176],{"class":86},"my",[65,178,179],{"class":79}," @array; ",[65,181,183],{"class":182},"s8-w5","# initialize\n",[65,185,187,189],{"class":67,"line":186},11,[65,188,176],{"class":86},[65,190,191],{"class":79}," $array_ref = @array;\n",[65,193,195],{"class":67,"line":194},12,[65,196,197],{"class":79},"print_array( $array_ref);\n",[39,199,200,201,204,205,208,209,212],{},"The developer mistakenly left out the ",[62,202,203],{},"\\"," indicator when initializing ",[62,206,207],{},"$array_ref"," . Consequently, instead of a reference to the array, it contains the number of elements in the array. When passed to the ",[62,210,211],{},"print_array()"," subroutine, this program prints an empty array.",[43,214,216],{"id":215},"compliant-solution","Compliant Solution",[39,218,219,220,222],{},"This compliant solution initializes ",[62,221,207],{}," correctly.",[51,224,226],{"quality":225},"good",[55,227,229],{"className":57,"code":228,"language":59,"meta":60,"style":60},"my $array_ref = \\@array;\nprint_array( $array_ref);\n",[62,230,231,238],{"__ignoreMap":60},[65,232,233,235],{"class":67,"line":68},[65,234,176],{"class":86},[65,236,237],{"class":79}," $array_ref = \\@array;\n",[65,239,240],{"class":67,"line":83},[65,241,197],{"class":79},[43,243,46],{"id":244},"noncompliant-code-example-1",[39,246,247],{},"This noncompliant code example prints the number of elements in an array.",[51,249,250],{"quality":53},[55,251,253],{"className":57,"code":252,"language":59,"meta":60,"style":60},"my @array; # initialize\nmy $cardinality = @array;\nprint \"The array has $cardinality elements\\n\";\n",[62,254,255,263,270],{"__ignoreMap":60},[65,256,257,259,261],{"class":67,"line":68},[65,258,176],{"class":86},[65,260,179],{"class":79},[65,262,183],{"class":182},[65,264,265,267],{"class":67,"line":83},[65,266,176],{"class":86},[65,268,269],{"class":79}," $cardinality = @array;\n",[65,271,272,275,278,281,284,286,288],{"class":67,"line":100},[65,273,274],{"class":93},"print",[65,276,277],{"class":106}," \"The array has ",[65,279,280],{"class":79},"$cardinality",[65,282,283],{"class":106}," elements",[65,285,153],{"class":152},[65,287,156],{"class":106},[65,289,97],{"class":79},[39,291,292],{},"Although this program works correctly, the number of elements of an array can be obtained in less ambiguous ways.",[43,294,296,297,300],{"id":295},"compliant-solution-scalar","Compliant Solution ( ",[62,298,299],{},"scalar()"," )",[39,302,303,304,306],{},"This compliant solution uses the ",[62,305,299],{}," built-in subroutine to obtain the number of elements of an array.",[51,308,309],{"quality":225},[55,310,312],{"className":57,"code":311,"language":59,"meta":60,"style":60},"my $cardinality = scalar( @array);\nprint \"The array has $cardinality elements\\n\";\n",[62,313,314,327],{"__ignoreMap":60},[65,315,316,318,321,324],{"class":67,"line":68},[65,317,176],{"class":86},[65,319,320],{"class":79}," $cardinality = ",[65,322,323],{"class":93},"scalar",[65,325,326],{"class":79},"( @array);\n",[65,328,329,331,333,335,337,339,341],{"class":67,"line":83},[65,330,274],{"class":93},[65,332,277],{"class":106},[65,334,280],{"class":79},[65,336,283],{"class":106},[65,338,153],{"class":152},[65,340,156],{"class":106},[65,342,97],{"class":79},[39,344,345,346,349,350,352],{},"This compliant solution evaluates ",[62,347,348],{},"@array"," in scalar context just as in the noncompliant code example. However, the ",[62,351,299],{}," makes this evaluation explicit, removing any doubt as to the programmer's intentions.",[43,354,296,355,300],{"id":215},[62,356,357],{},"$#",[39,359,303,360,362],{},[62,361,357],{}," operator to obtain the number of elements of an array.",[51,364,365],{"quality":225},[55,366,368],{"className":57,"code":367,"language":59,"meta":60,"style":60},"my $cardinality = $#array + 1;\nprint \"The array has $cardinality elements\\n\";\n",[62,369,370,377],{"__ignoreMap":60},[65,371,372,374],{"class":67,"line":68},[65,373,176],{"class":86},[65,375,376],{"class":79}," $cardinality = $#array + 1;\n",[65,378,379,381,383,385,387,389,391],{"class":67,"line":83},[65,380,274],{"class":93},[65,382,277],{"class":106},[65,384,280],{"class":79},[65,386,283],{"class":106},[65,388,153],{"class":152},[65,390,156],{"class":106},[65,392,97],{"class":79},[43,394,396],{"id":395},"risk-assessment","Risk Assessment",[39,398,399],{},"Evaluating an array or hash in improper contexts can 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{color: var(--shiki-sepia);background: var(--shiki-sepia-bg);font-style: var(--shiki-sepia-font-style);font-weight: var(--shiki-sepia-font-weight);text-decoration: var(--shiki-sepia-text-decoration);}html.sepia .shiki span {color: var(--shiki-sepia);background: var(--shiki-sepia-bg);font-style: var(--shiki-sepia-font-style);font-weight: var(--shiki-sepia-font-weight);text-decoration: var(--shiki-sepia-text-decoration);}",{"title":60,"searchDepth":83,"depth":83,"links":610},[611,612,613,614,616,618,619,620],{"id":45,"depth":83,"text":46},{"id":215,"depth":83,"text":216},{"id":244,"depth":83,"text":46},{"id":295,"depth":83,"text":615},"Compliant Solution ( scalar() )",{"id":215,"depth":83,"text":617},"Compliant Solution ( $# )",{"id":395,"depth":83,"text":396},{"id":473,"depth":83,"text":474},{"id":505,"depth":83,"text":506},"md",{"tags":623},[624,625],"recommendation","exp","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fexpressions-exp\u002Fexp06-pl",{"title":30,"description":41},"7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F3.expressions-exp\u002F6.exp06-pl","J4PUe_5rdIM7lTAV0SyKQ77tcdvPtVnblI-dZVsLm24",[631,634],{"title":632,"path":587,"stem":633,"children":-1},"EXP04-PL. Do not mix the early-precedence logical operators with late-precedence logical operators","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F3.expressions-exp\u002F5.exp04-pl",{"title":635,"path":636,"stem":637,"children":-1},"EXP07-PL. Do not modify $_ in list or sorting functions","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fexpressions-exp\u002Fexp07-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F3.expressions-exp\u002F7.exp07-pl",[639],{"title":640,"path":641,"stem":642,"children":643},"SEI CERT Perl Coding Standard","\u002Fsei-cert-perl-coding-standard","7.sei-cert-perl-coding-standard\u002F1.index",[644,645,700,832,971],{"title":640,"path":641,"stem":642},{"title":646,"path":647,"stem":648,"children":649},"Front Matter","\u002Fsei-cert-perl-coding-standard\u002Ffront-matter","7.sei-cert-perl-coding-standard\u002F2.front-matter\u002F1.index",[650,651,655],{"title":646,"path":647,"stem":648},{"title":652,"path":653,"stem":654},"Deprecations","\u002Fsei-cert-perl-coding-standard\u002Ffront-matter\u002Fdeprecations","7.sei-cert-perl-coding-standard\u002F2.front-matter\u002F2.deprecations",{"title":656,"path":657,"stem":658,"children":659},"Introduction","\u002Fsei-cert-perl-coding-standard\u002Ffront-matter\u002Fintroduction","7.sei-cert-perl-coding-standard\u002F2.front-matter\u002F3.introduction\u002F01.index",[660,661,665,669,673,677,681,685,688,692,696],{"title":656,"path":657,"stem":658},{"title":662,"path":663,"stem":664},"Scope","\u002Fsei-cert-perl-coding-standard\u002Ffront-matter\u002Fintroduction\u002Fscope","7.sei-cert-perl-coding-standard\u002F2.front-matter\u002F3.introduction\u002F01.scope",{"title":666,"path":667,"stem":668},"Tool Selection and Validation","\u002Fsei-cert-perl-coding-standard\u002Ffront-matter\u002Fintroduction\u002Ftool-selection-and-validation","7.sei-cert-perl-coding-standard\u002F2.front-matter\u002F3.introduction\u002F02.tool-selection-and-validation",{"title":670,"path":671,"stem":672},"Rules versus Recommendations","\u002Fsei-cert-perl-coding-standard\u002Ffront-matter\u002Fintroduction\u002Frules-versus-recommendations","7.sei-cert-perl-coding-standard\u002F2.front-matter\u002F3.introduction\u002F03.rules-versus-recommendations",{"title":674,"path":675,"stem":676},"Development Process","\u002Fsei-cert-perl-coding-standard\u002Ffront-matter\u002Fintroduction\u002Fdevelopment-process","7.sei-cert-perl-coding-standard\u002F2.front-matter\u002F3.introduction\u002F04.development-process",{"title":678,"path":679,"stem":680},"Usage","\u002Fsei-cert-perl-coding-standard\u002Ffront-matter\u002Fintroduction\u002Fusage","7.sei-cert-perl-coding-standard\u002F2.front-matter\u002F3.introduction\u002F05.usage",{"title":682,"path":683,"stem":684},"System Qualities","\u002Fsei-cert-perl-coding-standard\u002Ffront-matter\u002Fintroduction\u002Fsystem-qualities","7.sei-cert-perl-coding-standard\u002F2.front-matter\u002F3.introduction\u002F06.system-qualities",{"title":396,"path":686,"stem":687},"\u002Fsei-cert-perl-coding-standard\u002Ffront-matter\u002Fintroduction\u002Frisk-assessment","7.sei-cert-perl-coding-standard\u002F2.front-matter\u002F3.introduction\u002F07.risk-assessment",{"title":689,"path":690,"stem":691},"Source Code Validation","\u002Fsei-cert-perl-coding-standard\u002Ffront-matter\u002Fintroduction\u002Fsource-code-validation","7.sei-cert-perl-coding-standard\u002F2.front-matter\u002F3.introduction\u002F08.source-code-validation",{"title":693,"path":694,"stem":695},"Automatically Generated Code","\u002Fsei-cert-perl-coding-standard\u002Ffront-matter\u002Fintroduction\u002Fautomatically-generated-code","7.sei-cert-perl-coding-standard\u002F2.front-matter\u002F3.introduction\u002F09.automatically-generated-code",{"title":697,"path":698,"stem":699},"Acknowledgements","\u002Fsei-cert-perl-coding-standard\u002Ffront-matter\u002Fintroduction\u002Facknowledgements","7.sei-cert-perl-coding-standard\u002F2.front-matter\u002F3.introduction\u002F11.acknowledgements",{"title":701,"path":702,"stem":703,"children":704},"Rules","\u002Fsei-cert-perl-coding-standard\u002Frules","7.sei-cert-perl-coding-standard\u002F3.rules\u002F1.index",[705,706,724,750,760,790,794,808,818],{"title":701,"path":702,"stem":703},{"title":707,"path":708,"stem":709,"children":710},"Declarations and Initialization (DCL)","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fdeclarations-and-initialization-dcl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F2.declarations-and-initialization-dcl\u002F1.index",[711,712,716,720],{"title":707,"path":708,"stem":709},{"title":713,"path":714,"stem":715},"DCL30-PL. Do not import deprecated modules","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fdeclarations-and-initialization-dcl\u002Fdcl30-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F2.declarations-and-initialization-dcl\u002F2.dcl30-pl",{"title":717,"path":718,"stem":719},"DCL31-PL. Do not overload reserved keywords or subroutines","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fdeclarations-and-initialization-dcl\u002Fdcl31-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F2.declarations-and-initialization-dcl\u002F3.dcl31-pl",{"title":721,"path":722,"stem":723},"DCL33-PL. Declare identifiers before using them","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fdeclarations-and-initialization-dcl\u002Fdcl33-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F2.declarations-and-initialization-dcl\u002F4.dcl33-pl",{"title":725,"path":726,"stem":727,"children":728},"Expressions (EXP)","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fexpressions-exp","7.sei-cert-perl-coding-standard\u002F3.rules\u002F3.expressions-exp\u002F1.index",[729,730,734,738,742,746],{"title":725,"path":726,"stem":727},{"title":731,"path":732,"stem":733},"EXP30-PL. Do not use deprecated or obsolete functions or modules","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fexpressions-exp\u002Fexp30-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F3.expressions-exp\u002F2.exp30-pl",{"title":735,"path":736,"stem":737},"EXP31-PL. Do not suppress or ignore exceptions","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fexpressions-exp\u002Fexp31-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F3.expressions-exp\u002F3.exp31-pl",{"title":739,"path":740,"stem":741},"EXP32-PL. Do not ignore function return values","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fexpressions-exp\u002Fexp32-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F3.expressions-exp\u002F4.exp32-pl",{"title":743,"path":744,"stem":745},"EXP33-PL. Do not invoke a function in a context for which it is not defined","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fexpressions-exp\u002Fexp33-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F3.expressions-exp\u002F5.exp33-pl",{"title":747,"path":748,"stem":749},"EXP35-PL. Use the correct operator type for comparing values","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fexpressions-exp\u002Fexp35-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F3.expressions-exp\u002F6.exp35-pl",{"title":751,"path":752,"stem":753,"children":754},"File Input and Output (FIO)","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Ffile-input-and-output-fio","7.sei-cert-perl-coding-standard\u002F3.rules\u002F4.file-input-and-output-fio\u002F1.index",[755,756],{"title":751,"path":752,"stem":753},{"title":757,"path":758,"stem":759},"FIO30-PL. Use compatible character encodings when performing network or file I\u002FO","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Ffile-input-and-output-fio\u002Ffio30-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F4.file-input-and-output-fio\u002F2.fio30-pl",{"title":761,"path":762,"stem":763,"children":764},"Input Validation and Data Sanitization (IDS)","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Finput-validation-and-data-sanitization-ids","7.sei-cert-perl-coding-standard\u002F3.rules\u002F5.input-validation-and-data-sanitization-ids\u002F1.index",[765,766,770,774,778,782,786],{"title":761,"path":762,"stem":763},{"title":767,"path":768,"stem":769},"IDS30-PL. Exclude user input from format strings","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Finput-validation-and-data-sanitization-ids\u002Fids30-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F5.input-validation-and-data-sanitization-ids\u002F2.ids30-pl",{"title":771,"path":772,"stem":773},"IDS31-PL. Do not use the two-argument form of open()","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Finput-validation-and-data-sanitization-ids\u002Fids31-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F5.input-validation-and-data-sanitization-ids\u002F3.ids31-pl",{"title":775,"path":776,"stem":777},"IDS32-PL. Validate any integer that is used as an array index","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Finput-validation-and-data-sanitization-ids\u002Fids32-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F5.input-validation-and-data-sanitization-ids\u002F4.ids32-pl",{"title":779,"path":780,"stem":781},"IDS33-PL. Sanitize untrusted data passed across a trust boundary","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Finput-validation-and-data-sanitization-ids\u002Fids33-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F5.input-validation-and-data-sanitization-ids\u002F5.ids33-pl",{"title":783,"path":784,"stem":785},"IDS34-PL. Do not pass untrusted, unsanitized data to a command interpreter","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Finput-validation-and-data-sanitization-ids\u002Fids34-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F5.input-validation-and-data-sanitization-ids\u002F6.ids34-pl",{"title":787,"path":788,"stem":789},"IDS35-PL. Do not invoke the eval form with a string argument","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Finput-validation-and-data-sanitization-ids\u002Fids35-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F5.input-validation-and-data-sanitization-ids\u002F7.ids35-pl",{"title":791,"path":792,"stem":793},"Integers (INT)","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fintegers-int","7.sei-cert-perl-coding-standard\u002F3.rules\u002F6.integers-int",{"title":795,"path":796,"stem":797,"children":798},"Miscellaneous (MSC)","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fmiscellaneous-msc","7.sei-cert-perl-coding-standard\u002F3.rules\u002F7.miscellaneous-msc\u002F1.index",[799,800,804],{"title":795,"path":796,"stem":797},{"title":801,"path":802,"stem":803},"MSC31-PL. Do not embed global statements","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fmiscellaneous-msc\u002Fmsc31-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F7.miscellaneous-msc\u002F2.msc31-pl",{"title":805,"path":806,"stem":807},"MSC32-PL. Do not provide a module's version value from outside the module","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fmiscellaneous-msc\u002Fmsc32-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F7.miscellaneous-msc\u002F3.msc32-pl",{"title":809,"path":810,"stem":811,"children":812},"Object-Oriented Programming (OOP)","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fobject-oriented-programming-oop","7.sei-cert-perl-coding-standard\u002F3.rules\u002F8.object-oriented-programming-oop\u002F1.index",[813,814],{"title":809,"path":810,"stem":811},{"title":815,"path":816,"stem":817},"OOP32-PL. Prohibit indirect object call syntax","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fobject-oriented-programming-oop\u002Foop32-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F8.object-oriented-programming-oop\u002F2.oop32-pl",{"title":819,"path":820,"stem":821,"children":822},"Strings (STR)","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fstrings-str","7.sei-cert-perl-coding-standard\u002F3.rules\u002F9.strings-str\u002F1.index",[823,824,828],{"title":819,"path":820,"stem":821},{"title":825,"path":826,"stem":827},"STR30-PL. Capture variables should be read only immediately after a successful regex match","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fstrings-str\u002Fstr30-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F9.strings-str\u002F2.str30-pl",{"title":829,"path":830,"stem":831},"STR31-PL. Do not pass string literals to functions expecting regexes","\u002Fsei-cert-perl-coding-standard\u002Frules\u002Fstrings-str\u002Fstr31-pl","7.sei-cert-perl-coding-standard\u002F3.rules\u002F9.strings-str\u002F3.str31-pl",{"title":833,"path":834,"stem":835,"children":836},"Recommendations","\u002Fsei-cert-perl-coding-standard\u002Frecommendations","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F1.index",[837,838,867,891,904,917,930,955,968],{"title":833,"path":834,"stem":835},{"title":707,"path":839,"stem":840,"children":841},"\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fdeclarations-and-initialization-dcl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F2.declarations-and-initialization-dcl\u002F1.index",[842,843,847,851,855,859,863],{"title":707,"path":839,"stem":840},{"title":844,"path":845,"stem":846},"DCL00-PL. Do not use subroutine prototypes","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fdeclarations-and-initialization-dcl\u002Fdcl00-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F2.declarations-and-initialization-dcl\u002F2.dcl00-pl",{"title":848,"path":849,"stem":850},"DCL01-PL. Do not reuse variable names in subscopes","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fdeclarations-and-initialization-dcl\u002Fdcl01-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F2.declarations-and-initialization-dcl\u002F3.dcl01-pl",{"title":852,"path":853,"stem":854},"DCL02-PL. Any modified punctuation variable should be declared local","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fdeclarations-and-initialization-dcl\u002Fdcl02-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F2.declarations-and-initialization-dcl\u002F4.dcl02-pl",{"title":856,"path":857,"stem":858},"DCL03-PL. Do not read a foreach iterator variable after the loop has completed","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fdeclarations-and-initialization-dcl\u002Fdcl03-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F2.declarations-and-initialization-dcl\u002F5.dcl03-pl",{"title":860,"path":861,"stem":862},"DCL04-PL. Always initialize local variables","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fdeclarations-and-initialization-dcl\u002Fdcl04-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F2.declarations-and-initialization-dcl\u002F6.dcl04-pl",{"title":864,"path":865,"stem":866},"DCL05-PL. Prohibit Perl4 package names","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fdeclarations-and-initialization-dcl\u002Fdcl05-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F2.declarations-and-initialization-dcl\u002F7.dcl05-pl",{"title":725,"path":868,"stem":869,"children":870},"\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fexpressions-exp","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F3.expressions-exp\u002F1.index",[871,872,876,880,884,885,886,887],{"title":725,"path":868,"stem":869},{"title":873,"path":874,"stem":875},"EXP00-PL. Do not return undef","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fexpressions-exp\u002Fexp00-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F3.expressions-exp\u002F2.exp00-pl",{"title":877,"path":878,"stem":879},"EXP01-PL. Do not depend on the return value of functions that lack a return statement","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fexpressions-exp\u002Fexp01-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F3.expressions-exp\u002F3.exp01-pl",{"title":881,"path":882,"stem":883},"EXP03-PL. Do not diminish the benefits of constants by assuming their values in expressions","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fexpressions-exp\u002Fexp03-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F3.expressions-exp\u002F4.exp03-pl",{"title":632,"path":587,"stem":633},{"title":30,"path":626,"stem":628},{"title":635,"path":636,"stem":637},{"title":888,"path":889,"stem":890},"EXP08-PL. Do not use the one-argument form of select()","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fexpressions-exp\u002Fexp08-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F3.expressions-exp\u002F8.exp08-pl",{"title":751,"path":892,"stem":893,"children":894},"\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Ffile-input-and-output-fio","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F4.file-input-and-output-fio\u002F1.index",[895,896,900],{"title":751,"path":892,"stem":893},{"title":897,"path":898,"stem":899},"FIO00-PL. Do not use bareword file handles","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Ffile-input-and-output-fio\u002Ffio00-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F4.file-input-and-output-fio\u002F2.fio00-pl",{"title":901,"path":902,"stem":903},"FIO01-PL. Do not operate on files that can be modified by untrusted users","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Ffile-input-and-output-fio\u002Ffio01-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F4.file-input-and-output-fio\u002F3.fio01-pl",{"title":761,"path":905,"stem":906,"children":907},"\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Finput-validation-and-data-sanitization-ids","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F5.input-validation-and-data-sanitization-ids\u002F1.index",[908,909,913],{"title":761,"path":905,"stem":906},{"title":910,"path":911,"stem":912},"IDS00-PL. Canonicalize path names before validating them","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Finput-validation-and-data-sanitization-ids\u002Fids00-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F5.input-validation-and-data-sanitization-ids\u002F2.ids00-pl",{"title":914,"path":915,"stem":916},"IDS01-PL. Use taint mode while being aware of its limitations","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Finput-validation-and-data-sanitization-ids\u002Fids01-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F5.input-validation-and-data-sanitization-ids\u002F3.ids01-pl",{"title":791,"path":918,"stem":919,"children":920},"\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fintegers-int","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F6.integers-int\u002F1.index",[921,922,926],{"title":791,"path":918,"stem":919},{"title":923,"path":924,"stem":925},"INT00-PL. Do not prepend leading zeroes to integer literals","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fintegers-int\u002Fint00-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F6.integers-int\u002F2.int00-pl",{"title":927,"path":928,"stem":929},"INT01-PL. Use small integers when precise computation is required","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fintegers-int\u002Fint01-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F6.integers-int\u002F3.int01-pl",{"title":795,"path":931,"stem":932,"children":933},"\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fmiscellaneous-msc","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F7.miscellaneous-msc\u002F1.index",[934,935,939,943,947,951],{"title":795,"path":931,"stem":932},{"title":936,"path":937,"stem":938},"MSC00-PL. Detect and remove dead code","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fmiscellaneous-msc\u002Fmsc00-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F7.miscellaneous-msc\u002F2.msc00-pl",{"title":940,"path":941,"stem":942},"MSC01-PL. Detect and remove unused variables","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fmiscellaneous-msc\u002Fmsc01-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F7.miscellaneous-msc\u002F3.msc01-pl",{"title":944,"path":945,"stem":946},"MSC02-PL. Run programs with full warnings and strict checking","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fmiscellaneous-msc\u002Fmsc02-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F7.miscellaneous-msc\u002F4.msc02-pl",{"title":948,"path":949,"stem":950},"MSC03-PL. Do not use select() to sleep","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fmiscellaneous-msc\u002Fmsc03-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F7.miscellaneous-msc\u002F5.msc03-pl",{"title":952,"path":953,"stem":954},"MSC04-PL. Do not use comma to separate statements","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fmiscellaneous-msc\u002Fmsc04-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F7.miscellaneous-msc\u002F6.msc04-pl",{"title":809,"path":956,"stem":957,"children":958},"\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fobject-oriented-programming-oop","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F8.object-oriented-programming-oop\u002F1.index",[959,960,964],{"title":809,"path":956,"stem":957},{"title":961,"path":962,"stem":963},"OOP00-PL. Do not signify inheritence at runtime","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fobject-oriented-programming-oop\u002Foop00-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F8.object-oriented-programming-oop\u002F2.oop00-pl",{"title":965,"path":966,"stem":967},"OOP01-PL. Do not access private variables or subroutines in other packages","\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fobject-oriented-programming-oop\u002Foop01-pl","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F8.object-oriented-programming-oop\u002F3.oop01-pl",{"title":819,"path":969,"stem":970},"\u002Fsei-cert-perl-coding-standard\u002Frecommendations\u002Fstrings-str","7.sei-cert-perl-coding-standard\u002F4.recommendations\u002F9.strings-str",{"title":972,"path":973,"stem":974,"children":975},"Back Matter","\u002Fsei-cert-perl-coding-standard\u002Fback-matter","7.sei-cert-perl-coding-standard\u002F5.back-matter\u002F1.index",[976,977,981,1011],{"title":972,"path":973,"stem":974},{"title":978,"path":979,"stem":980},"AA. Bibliography","\u002Fsei-cert-perl-coding-standard\u002Fback-matter\u002Faa-bibliography","7.sei-cert-perl-coding-standard\u002F5.back-matter\u002F2.aa-bibliography",{"title":982,"path":983,"stem":984,"children":985},"BB. Analyzers","\u002Fsei-cert-perl-coding-standard\u002Fback-matter\u002Fbb-analyzers","7.sei-cert-perl-coding-standard\u002F5.back-matter\u002F3.bb-analyzers\u002F1.index",[986,987,991,995,999,1003,1007],{"title":982,"path":983,"stem":984},{"title":988,"path":989,"stem":990},"Critic","\u002Fsei-cert-perl-coding-standard\u002Fback-matter\u002Fbb-analyzers\u002Fcritic","7.sei-cert-perl-coding-standard\u002F5.back-matter\u002F3.bb-analyzers\u002F2.critic",{"title":992,"path":993,"stem":994},"Critic_V","\u002Fsei-cert-perl-coding-standard\u002Fback-matter\u002Fbb-analyzers\u002Fcritic_v","7.sei-cert-perl-coding-standard\u002F5.back-matter\u002F3.bb-analyzers\u002F3.critic_v",{"title":996,"path":997,"stem":998},"Lint","\u002Fsei-cert-perl-coding-standard\u002Fback-matter\u002Fbb-analyzers\u002Flint","7.sei-cert-perl-coding-standard\u002F5.back-matter\u002F3.bb-analyzers\u002F4.lint",{"title":1000,"path":1001,"stem":1002},"Lint_V","\u002Fsei-cert-perl-coding-standard\u002Fback-matter\u002Fbb-analyzers\u002Flint_v","7.sei-cert-perl-coding-standard\u002F5.back-matter\u002F3.bb-analyzers\u002F5.lint_v",{"title":1004,"path":1005,"stem":1006},"Security Reviewer - Static Reviewer","\u002Fsei-cert-perl-coding-standard\u002Fback-matter\u002Fbb-analyzers\u002Fsecurity-reviewer-static-reviewer","7.sei-cert-perl-coding-standard\u002F5.back-matter\u002F3.bb-analyzers\u002F6.security-reviewer-static-reviewer",{"title":1008,"path":1009,"stem":1010},"Security Reviewer - Static Reviewer_V","\u002Fsei-cert-perl-coding-standard\u002Fback-matter\u002Fbb-analyzers\u002Fsecurity-reviewer-static-reviewer_v","7.sei-cert-perl-coding-standard\u002F5.back-matter\u002F3.bb-analyzers\u002F7.security-reviewer-static-reviewer_v",{"title":1012,"path":1013,"stem":1014},"CC. Risk Assessments","\u002Fsei-cert-perl-coding-standard\u002Fback-matter\u002Fcc-risk-assessments","7.sei-cert-perl-coding-standard\u002F5.back-matter\u002F4.cc-risk-assessments",1775657795064]