soikk/pearson_verify
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Fixed bug with file2. Changed error behaviour. Updated README to reflect change.

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This commit is contained in:
Soikk
2024-10-20 22:36:49 +02:00
parent 33972d0df3
commit f4a7808ab3
2 changed files with 20 additions and 12 deletions

2
README.md

@ -1,4 +1,4 @@
# Pearson verify
This program is meant to be used to verify the ouput of the pearson section of [dv1674_a2](https://github.com/sm13294/dv1674_a2).\
\
This program compares 64 bit floating point numbers stored in a separate line each from \<file1\> and \<file2\>. If all the pairs of numbers are the same up to the 15th decimal place, 0 will be returned. If not, this program will check if all numbers are the same up to the 11th decimal place, and if so 1 will be returned. If [stop] is 1, this program will stop as soon as this happens. If any numbers are not the same up to the 11th decimal place, 2 will be returned. If [stop] is 2, this program will stop as soon as this happens. If there is an error while executing this program, -1 will be returned.
This program compares 64 bit floating point numbers stored in a separate line each from \<file1\> and \<file2\>. If all the pairs of numbers are the same up to the 15th decimal place, 0 will be returned. If not, this program will check if all numbers are the same up to the 11th decimal place, and if so 1 will be returned. If [stop] is 1, this program will stop as soon as this happens. If any numbers are not the same up to the 11th decimal place, 2 will be returned. If [stop] is 2, this program will stop as soon as this happens. If there is an error while executing this program, -1 will be returned, unless the error lies within the files' structures, in which case 2 will be returned, as it means there was a significant difference in the outputs. Compile with -DDEBUG (make debug) or define DEBUG in the program to print debug information.

30
verify.c

@ -8,7 +8,7 @@
int main(int argc, char *argv[]){
int ret = 0;
int ret = -1;
int stop = 0;
FILE *f1 = NULL;
FILE *f2 = NULL;
@ -26,10 +26,13 @@ int main(int argc, char *argv[]){
"\tas this happens. If any numbers are not the same up to the 11th decimal\n"
"\tplace, 2 will be returned. If [stop] is 2, this program will stop as soon\n"
"\tas this happens. If there is an error while executing this program, -1 will\n"
"\tbe returned. Compile with -DDEBUG (make debug) or define DEBUG in the program\n"
"\tbe returned, unless the error lies within the files' structures, in which\n"
"\tcase 2 will be returned, as it means there was a significant difference in\n"
"\tthe outputs. Compile with -DDEBUG (make debug) or define DEBUG in the program\n"
"\tto print debug information.\n"
);
return -1;
ret = -1;
goto end;
}
if(argc > 3){
@ -39,12 +42,14 @@ int main(int argc, char *argv[]){
f1 = fopen(argv[1], "rb");
if(!f1){
fprintf(stderr, "ERROR: Cannot open file '%s'.\n", argv[1]);
return -1;
ret = -1;
goto end;
}
f2 = fopen(argv[2], "rb");
if(!f1){
if(!f2){
fprintf(stderr, "ERROR: Cannot open file '%s'.\n", argv[2]);
return -1;
ret = -1;
goto end;
}
while(!feof(f1) && !feof(f2)){
@ -52,11 +57,13 @@ int main(int argc, char *argv[]){
if(fscanf(f1, "%lg\n", &d1) != 1){
fprintf(stderr, "ERROR: Cannot read number from file '%s' at line %lu.\n", argv[1], line);
return -1;
ret = 2;
goto close_end;
}
if(fscanf(f2, "%lg\n", &d2) != 1){
fprintf(stderr, "ERROR: Cannot read number from file '%s' at line %lu.\n", argv[1], line);
return -1;
ret = 2;
goto close_end;
}
double error = fabs(d1-d2);
@ -67,7 +74,7 @@ int main(int argc, char *argv[]){
ret = 2;
}
if(stop > 0 && stop == ret){
goto end;
goto close_end;
}
}
line++;
@ -75,13 +82,14 @@ int main(int argc, char *argv[]){
if((feof(f1) && !feof(f2)) || (!feof(f1) && feof(f2))){
fprintf(stderr, "ERROR: Different number of lines in files '%s' and '%s'.\n", argv[1], argv[2]);
return -1;
ret = 2;
}
end:
close_end:
fclose(f1);
fclose(f2);
end:
#ifdef DEBUG
printf("%lu lines read\n", line);
printf("Return value: %d\n", ret);