diff options
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | README.md | 2 | ||||
| -rw-r--r-- | verify.c | 34 |
3 files changed, 29 insertions, 10 deletions
@@ -6,6 +6,9 @@ all: verify.c debug: verify.c $(CC) verify.c -o verify -DDEBUG +quiet: verify.c + $(CC) verify.c -o verify -DQUIET + clean: rm -f verify @@ -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, 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. +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. Define DEBUG in the source code or compile with -DDEBUG (or use make debug) to print debug information. Define QUIET in the source code or compile with -DQUIET (or use make quiet) to prevent the program from printing anything. @@ -15,8 +15,9 @@ int main(int argc, char *argv[]){ long unsigned int line = 1; if(argc < 3){ - fprintf(stderr, "ERROR: Wrong usage.\n"); - fprintf(stderr, "Usage: %s <file1> <file2> [stop]\n", argv[0]); +#ifndef QUIET + fprintf(stderr, "ERROR:\tWrong usage.\n"); + fprintf(stderr, "Usage:\t%s <file1> <file2> [stop]\n", argv[0]); fprintf(stderr, "\tThis program compares 64 bit floating point numbers stored in a separate\n" "\tline each from <file1> and <file2>. If all the pairs of numbers are the\n" @@ -28,9 +29,12 @@ int main(int argc, char *argv[]){ "\tas this happens. If there is an error while executing this program, -1 will\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" + "\tthe outputs. Define DEBUG in the source code or compile with -DDEBUG (or use\n" + "\tmake debug) to print debug information. Define QUIET in the source code or\n" + "\tcompile with -DQUIET (or use make quiet) to prevent the program from printing\n" + "\tanything.\n" ); +#endif ret = -1; goto end; } @@ -41,13 +45,17 @@ int main(int argc, char *argv[]){ f1 = fopen(argv[1], "rb"); if(!f1){ - fprintf(stderr, "ERROR: Cannot open file '%s'.\n", argv[1]); +#ifndef QUIET + fprintf(stderr, "ERROR:\tCannot open file '%s'.\n", argv[1]); +#endif ret = -1; goto end; } f2 = fopen(argv[2], "rb"); if(!f2){ - fprintf(stderr, "ERROR: Cannot open file '%s'.\n", argv[2]); +#ifndef QUIET + fprintf(stderr, "ERROR:\tCannot open file '%s'.\n", argv[2]); +#endif ret = -1; goto end; } @@ -56,12 +64,16 @@ int main(int argc, char *argv[]){ double d1, d2; if(fscanf(f1, "%lg\n", &d1) != 1){ - fprintf(stderr, "ERROR: Cannot read number from file '%s' at line %lu.\n", argv[1], line); +#ifndef QUIET + fprintf(stderr, "ERROR:\tCannot read number from file '%s' at line %lu.\n", argv[1], line); +#endif 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); +#ifndef QUIET + fprintf(stderr, "ERROR:\tCannot read number from file '%s' at line %lu.\n", argv[1], line); +#endif ret = 2; goto close_end; } @@ -81,7 +93,9 @@ 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]); +#ifndef QUIET + fprintf(stderr, "ERROR:\tDifferent number of lines in files '%s' and '%s'.\n", argv[1], argv[2]); +#endif ret = 2; } @@ -90,10 +104,12 @@ close_end: fclose(f2); end: +#ifndef QUIET #ifdef DEBUG printf("%lu lines read\n", line); printf("Return value: %d\n", ret); #endif +#endif return ret; } |