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Commit987cf19

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1 parentf66a1c6 commit987cf19

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+130
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‎Makefile‎

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#DEPS = function.h
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#LIB_OBJS = function.o
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# https://stackoverflow.com/questions/18007326/how-to-change-default-values-of-variables-like-cc-in-makefile
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ifeq ($(originCC),default)
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CC = gcc
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endif
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.PHONY: all
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all: test
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@echo All done!
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test:$(LIB_OBJS) test.o
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$(CC)$(LDFLAGS)$^ -o$@$(LDLIBS)
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%.o:%.cpp$(DEPS)
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$(CC)$(CFLAGS)$<
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.PHONY: clean
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clean:
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rm -f*.otest
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@echo Clean done!

‎test.c‎

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#include<string.h>
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#include<stdio.h>
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#include<stdlib.h>
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typedefstructwflMemCtx
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{
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//Nothing for now;
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}wflMemCtx ;
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wflMemCtxstatic_ctx;
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wflMemCtx*
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wflCreateMemCtx()
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{
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return&static_ctx;
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}
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void
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wflDestroyMemCtx(wflMemCtx*mctx)
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{
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}
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typedefstructwflBlobDsc
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{
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structwflMemCtx*mctx;
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char*data;
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intbegin;
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intend;
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}wflBlobDsc;
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void
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wflBlobDump(wflBlobDsc*blob)
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{
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intlength=blob->end-blob->begin+1 ;
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char*str=malloc(length+1 );// second +1 is for \0
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// FIXME проверка null
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str[0]='\0';
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strncat(str,blob->data+blob->begin,length);// second +1 is for \0
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printf("%s\n",str);
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free(str);
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}
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void*
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wflMalloc(size_tsize )
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{
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/*just that simple for now*/
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returnmalloc(size );
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}
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wflBlobDsc*
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wflShiftN(wflBlobDsc*blob,size_tn)
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{
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wflBlobDsc*new_blob;
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// FIXME null check here;
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if (blob->begin+n>blob->end)
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returnNULL;/*not enough data*/
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new_blob=wflMalloc(sizeof(wflBlobDsc));
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new_blob->data=blob->data;
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new_blob->begin=blob->begin;
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new_blob->end=blob->begin+n-1;
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blob->begin+=n;
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returnnew_blob;
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}
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charblob_data[]="aaalkjdhfs89345yu3ifhjew;lkhf4;lt;o34ithp;eriuwtgp;etup568p34tuewritwe;rtgj;ewoty;4w85tyeihwritgzzz";
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intmain()
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{
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wflMemCtx*mctx;
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wflBlobDscblob;
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wflBlobDsc*b2;
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mctx=wflCreateMemCtx();
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blob.mctx=mctx;
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blob.data=blob_data;
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blob.begin=0;
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blob.end=strlen(blob_data)-1;
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wflBlobDump(&blob);
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printf("-----\n");
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b2=wflShiftN(&blob,9993);
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wflBlobDump(&blob);
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wflBlobDump(b2);
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wflDestroyMemCtx(mctx);
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}

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