Bug 10210
| Summary: | fscanf fails to convert %11f correctly | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | jimabbate <jim> |
| Component: | glibc | Assignee: | Jakub Jelinek <jakub> |
| Status: | CLOSED RAWHIDE | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | medium | ||
| Version: | 6.0 | CC: | jim |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2000-08-14 21:22:46 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
assign to jakub We really need a fix for this problem A.S.A.P The workaround is adding over 25% to our total run time!! When can I expect this bug to be fixed? PLEASE RESPOND!! Thanks, Jim Another 6 weeks have passed and still nothing!!! I installed Version 6.2 and it works for the simple test case given originally: -.10000E+020.20000E+000.30000E-010.40000E-010.50000E-010.60000E-01 However, it still doesn't work correctly in the general case because when I took the workaround out, our test cases all failed miserably. Maybe you should call me when you get ready to work on it and I'll give you a new test case that breaks it. (503) 672-8717 Jim Abbate BTW: If Fluence took this long to respond to bugs, we would have been laughed out of the businees a long time ago. I have fixed this in glibc 2.1.92 (thanks for the report), I'm just not sure this is worth issuing glibc 2.1.3 updates because of it. If you want, I can mail you the patch and you can rebuild glibc yoursef, or you can use glibc from rawhide. Let me know. Thanks for fixing this bug. I need the fix for this problem now since we are ready to release a new version of our software. What do you mean by "I can use the glibc from rawhide?" How do I get this? Is it better to try to rebuild glibc with the patch, myself? How do I do that. Thanks, Jim |
Using the following input for the fscanf: "test.file": -.10000E+020.20000E+000.30000E-010.40000E-010.50000E-010.60000E-01 And running the following C program: #include<stdio.h> #include<stdlib.h> #include<string.h> #include<strings.h> #include <ctype.h> int main() { FILE *fp; float fdata; int i; fp = fopen("test.file", "r"); if (NULL == fp) { printf("\n Open Failed\n"); exit (0); } for (i = 0; i < 6; i++) { fscanf(fp, "%11f", &fdata); printf("\n fdata=%g", fdata); } fclose(fp); exit (0); } YIELDS the following incorrect results: fdata=-10 fdata=0.2 fdata=3e-11 fdata=4e-11 fdata=5e-11 fdata=6e-11 fdata=0.07 Running the same program on Solaris, HP and Slackware 3.4 works correctly Yielding: fdata=-10 fdata=0.2 fdata=0.03 fdata=0.04 fdata=0.05 fdata=0.06 fdata=0.07