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Overview
| Comment: | Use strspn() to improve the performance of validate16(). |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
c550d6e0215e33e5e42916aebb742e83 |
| User & Date: | drh 2019-09-12 16:51:09 |
Context
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2019-09-12
| ||
| 17:11 | Use strchr() to improve the performance of defossilize(). check-in: 0aaefeab user: drh tags: trunk | |
| 16:51 | Use strspn() to improve the performance of validate16(). check-in: c550d6e0 user: drh tags: trunk | |
| 16:43 | Add the --limit N option to the test-parse-all-blobs test command, so that we can easily limit the run-time of that command for cachegrind performance testing. check-in: 52211ccc user: drh tags: trunk | |
Changes
Changes to src/encode.c.
644 645 646 647 648 649 650 651 652 653 654 655 656 657 |
/*
** Return true if the input string contains only valid base-16 digits.
** If any invalid characters appear in the string, return false.
*/
int validate16(const char *zIn, int nIn){
int i;
if( nIn<0 ) nIn = (int)strlen(zIn);
for(i=0; i<nIn; i++, zIn++){
if( zDecode[zIn[0]&0xff]>63 ){
return zIn[0]==0;
}
}
return 1;
}
|
> > > |
644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 |
/*
** Return true if the input string contains only valid base-16 digits.
** If any invalid characters appear in the string, return false.
*/
int validate16(const char *zIn, int nIn){
int i;
if( nIn<0 ) nIn = (int)strlen(zIn);
if( zIn[nIn]==0 ){
return strspn(zIn,"0123456789abcdefABCDEF")==nIn;
}
for(i=0; i<nIn; i++, zIn++){
if( zDecode[zIn[0]&0xff]>63 ){
return zIn[0]==0;
}
}
return 1;
}
|