我可以以某种方式从GCC过滤错误消息行
Can I somehow filter the error message lines from GCC?
在C 中进行编码时,我通常会收到一个非常长的错误消息,例如简单错误,例如功能调用中的不匹配参数或参数歧义。这些错误消息通常跨越数十个行,很难找到实际错误在哪里。
是否可以对输出进行一些操纵,以找到"懒惰"的错误位置?
我正在寻找:
make |& xclip_error_loc
... (make output)
(prints and/or adds this to the clipboard: sourcefile.cc:86:2)
这将是一个非常有用的调试工具。我该如何实现?
示例编译错误:
Compiling test: "createClusterSizePairFrequencyValidationPlots"...
src/createClusterSizePairFrequencyValidationPlots.cc: In function 'int main(int, char**)':
src/createClusterSizePairFrequencyValidationPlots.cc:167:62: error: no matching function for call to 'TH2I::Fill(const int&, const float&, const char [2])'
ngthYVsPhi_H .Fill(cluster.sizeY, phi, "1");
^
In file included from /cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2D.h:25:0,
from src/../interface/ClusterPairFunctions.h:7,
from src/createClusterSizePairFrequencyValidationPlots.cc:8:
/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2.h:63:13: note: candidate: virtual Int_t TH2::Fill(Double_t)
Int_t Fill(Double_t); //MayNotUse
^
/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2.h:63:13: note: candidate expects 1 argument, 3 provided
/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2.h:64:13: note: candidate: virtual Int_t TH2::Fill(const char*, Double_t)
Int_t Fill(const char*, Double_t) { return Fi
^
/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2.h:64:13: note: candidate expects 2 arguments, 3 provided
/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2.h:75:21: note: candidate: virtual Int_t TH2::Fill(Double_t, Double_t)
virtual Int_t Fill(Double_t x, Double_t y);
^
/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2.h:75:21: note: candidate expects 2 arguments, 3 provided
/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2.h:76:21: note: candidate: virtual Int_t TH2::Fill(Double_t, Double_t, Double_t)
virtual Int_t Fill(Double_t x, Double_t y, Do
^
/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2.h:76:21: note: no known conversion for argument 3 from 'const char [2]' to 'Double_t {aka double}'
/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2.h:77:21: note: candidate: virtual Int_t TH2::Fill(Double_t, const char*, Double_t)
virtual Int_t Fill(Double_t x, const char *na
^
/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2.h:77:21: note: no known conversion for argument 2 from 'const float' to 'const char*'
/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2.h:78:21: note: candidate: virtual Int_t TH2::Fill(const char*, Double_t, Double_t)
virtual Int_t Fill(const char *namex, Double_
^
/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2.h:78:21: note: no known conversion for argument 3 from 'const char [2]' to 'Double_t {aka double}'
/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_0_18/external/slc6_amd64_gcc530/bin/../../../../../../lcg/root/6.06.00-ikhhed4/include/TH2.h:79:21: note: candidate: virtual Int_t TH2::Fill(const char*, const char*, Double_t)
virtual Int_t Fill(const char *namex, const c
^
(lots of similar lines...)
它应该输出:
createclustersizepairfrequencyvalidationplots.cc:167:62
更新到niosat的答案:
复制错误消息:
make 2>&1 | egrep -o ":[0-9]+:[0-9]+: error" | xargs echo -n | xclip -selection clipboard && xclip -selection clipboard -o && echo ""
仅复制和显示第一个错误:
make 2>&1 | egrep -o ":[0-9]+:[0-9]+: error" | head -n 1 | xargs echo -n | xclip -selection clipboard && xclip -selection clipboard -o && echo ""
要执行此操作。
命令就像这个
make 2>&1 | egrep ":[0-9]+:[0-9]+: error:"
这做两件事
- 它将stderr移至stdout
- 它在寻找:"这里的任何数字":"任何数字":错误:并打印出相应的行
因此,您只能获得所需信息的行
更新到答案:
复制错误msg:
make 2>&1 | egrep -o ":[0-9]+:[0-9]+: error" | xargs echo -n | xclip -selection clipboard && xclip -selection clipboard -o && echo ""
仅复制和显示第一个错误:
make 2>&1 | egrep -o ":[0-9]+:[0-9]+: error" | head -n 1 | xargs echo -n | xclip -selection clipboard && xclip -selection clipboard -o && echo ""
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