Statement in program:
fprintf(OutBasalArea,"\t %12.2lf",SpecBasalArea[ks]);
Getting -1.#J
Why and what change do I need to make to program statement?
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I have a problem when writing a file on the text. As you could see, I used \n to put another set of my data on the next line. The problem ... |
hello i am trying to write to a FILE in a wanted line number using c programming language
and for some unknown reasons it doesnt get written
this is my checking code:
int main()
{
...
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So...I was trying to make my own simple keylogger and this works for things typed at the shell, but if I double click the executable file it just puts a lot ... |
When generating am xml in C by using fprintf(), what should be kept in mind?
I am using it, but i am facing some issues when opening the xml in IE; however, ... |
The standard output string is normally line buffered. That means the system is not constrained to actually output the characters printed unless a new line is printed or the stream is flushed. You print no newlines so the system is completely within its rights to hold that data in an internal buffer until such time as it is required to output ... |
vamsi Hi, I have a program, where involves creation of a thread with stack size of 16k(minimum stack size). There is an fprintf statement in the created thread code. I see that there is a core dump occuring at fprintf. code snippet : ************************************************** ******************************* #include #include #include void func(void *); #define OUTSTREAM stderr pthread_attr_t attr; main() { pthread_t p[10]; void ... |
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Hello all, I want to write the following line: mtext(1, at=Graph, text=sprintf('%0.2f',MP$LR), line=1) in a file (for example:Hist.R) in a function as follow: void Graph() { FILE *RH=fopen("Hist.R","w"); .. .. .. fprintf(RH,"mtext(1, at=Graph, text=sprintf('%0.2f',MP$LR), line=1)\n"); .. .. .. fclose(RH); When I run the program, what program writes in the 'Hist.R' file is: mtext(1, at=Graph, text=sprintf('0.00',MP$LR), line=1) it is '0.00' instead of ... |
"Joy2006" wrote in message news:1148620589.623873.196890@j73g2000cwa.googlegr oups.com...[color=blue] >I am a beginner of VC++... > Whenever I use fprintf(fp,Count); where Count is a Long Variable, I get > an error saying > "error C2664: 'fprintf' : cannot convert parameter 2 from 'long' to > 'const char *'" > > Can someone help me?[/color] printf would be printf("%ld", Count); (%d is for int, ... |
This is strange, my output to printf is exacty how i want it. But the output to a file is not what I expected. My instructor for class is horrible. (long story) the output to the regular printf is: Temp Avg High Low 1173 46.00 100 -1 fprintf is : (null)Temp/ Ave/ High/ Low (null)1173/ 0.00/ -1 / 0 (the slashes ... |
#include int main(void) { FILE *stream; int i = 100; char c = 'C'; float f = 1.234; int ret=0; /* open a file for update */ stream = fopen("DUMMY.FIL", "w+"); /* write some data to the file */ if(ret=(fprintf(stream, "%d %c %f", i, c, f)!=EOF)) printf("\n%d bytes of data was printed successfully ",ret); else printf("\nData was not printed successfully"); ... |
Code: complex input_complex(FILE *infile) { complex z = {0,0}; double re = 0, im = 0; char op, ch; fscanf(infile,"%lf %c%lf%c",&re,&op,&im,&ch); if (infile != stdin && !good(im,op,ch)) { printf("Improperly formed complex number in input file; goodbye\n"); exit(1); } while(!good(im,op,ch)) { printf("Illegal input for complex number; try again\n"); fscanf(infile,"%lf %c%lf%c",&re,&op,&im,&ch); } z.re = re; if (op == '+') z.im = im; else ... |
Code: #include #include #include #include typedef struct { char studentName[50]; int studentId; } database; int main(int argc, char *argv[]) { database school; FILE *file_ptr; char text[50]; int begin,temp; while(1) { printf("Input Data? (Yes = 1) : "); scanf("%d",&begin); if(begin != 1) { break; } else { printf("\nEnter Student Name: "); fgets(school.studentName, 50 , stdin); printf("\nEnter Student ID: ... |
Hi! I am running mpg123 with a fifo in order to control it. If I start it manually and echo a command via the console to the fifo, everything runs fine. As soon, as I try to do these two things in a C-program, it won't work anymore. I am doing this with system(3) and fprintf(3). As soon as I leave ... |
Well I cant use a debugger that i know of cuz im using jni functions and although this isnt a jni function where im getting the problem the main code is base in java and when i call the jni thats when it crashes. I cant really post the code because its companys code im trying to debug but i mean ... |
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18. fprintf issue cboard.cprogramming.com |
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20. fprintf cboard.cprogramming.comint replaceNibble (int number, int nibble, int value, int newVal) { if (d == value) { int result, d; result = newVal; result = result << 12; /* new value that replace; now write to output.txt file */ d = number ^ result; /* OR to get answer to store to output file */ fprintf(out, "%d", d); printf("replace and has new ... |
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Conversions can be applied to the nth argument after the format in the argument list, rather than to the next unused argument. In this case, the conversion specifier character % (see below) is replaced by the sequence "%n$", where n is a decimal integer in the range [1,{NL_ARGMAX}], giving the position of the argument in the argument list. This feature provides ... |
No, I have two files open. . . And yeah, I did name the pointer incorrectly, but that wasn't the problem since it was consistent. I now changed the fopen from "w" to "a" and the program works. . . . So, I guess I am going to open the file for "w", close it, then open it for "a". I ... |
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#include int main() { FILE *afile, *anotherfile; int number; afile=fopen("fun-with-numbers.txt","r"); anotherfile=fopen("more-fun-with-numbers.txt","w"); if (afile==NULL) { printf("Could not open file for reading.\n"); } else { fprintf(stdout,"Success opening file.\n\n"); fscanf(afile,"%d", &number); while (feof(afile)==0) { printf("%d\n", number); fprintf(anotherfile,"%d\n", number); fscanf(afile,"%d", &number); } /* do not pass a NULL pointer to fclose() */ fclose(afile); } return 0; } |
Check the return value of whatever is acquiring your strings for you. Typically these types of functions return something useful, such as the amount of data read or the like. Use that to see if your string contains something useful. In addition to that, consider using something like strlen to test the length of the string. If it's less than 1, ... |
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#include #include int main (void) { double *y, *x, xi, x1; int i,n; FILE *fp; printf(" n-->"); scanf("%f",&n); printf("x1-->"); scanf("%f", &x1); y= malloc( n*sizeof(double) ); x= malloc( n*sizeof(double) ); fp=fopen("test.dat", "w"); xi=x1; for (i=0; i |
36. fprintf() cboard.cprogramming.comNo, made the declaration FILE *standard_input, and then did the function above. I'm trying to turn this program into a WIN32 program, i have it done as a regular console program, and it just takes in "stdin", so I was trying to make my own, call it standard input and try to just substitute it in. So i was taking what ... |
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I have experienced some mysterious problems when trying to write something into a file. The output file is created by fopen in the beginning of the program. The idea is at the end of the run I want to write some data into the file, using fprintf. 1 If I write something (e.g. "Hello world \n") into the output file at ... |
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40. fprintf cboard.cprogramming.comCode: #include #include void select_mode(); void add_item(FILE *out); /*void delete_item(FILE *out); void search_item(FILE *out); void edit_item(FILE *out);*/ typedef struct { char make[30], model[30], serialnum[30], item_desc[4000]; }INV_ITEM; INV_ITEM item; int main() { select_mode(); } void select_mode() { char mode; FILE *out; out=fopen("inv_file","a"); printf(" add an item (1)\n"); printf(" delete an item (2)\n"); printf(" search for an item (3)\n"); printf(" edit ... |
41. fprintf stdin cboard.cprogramming.com |
42. fprintf? cboard.cprogramming.com |
Been hammering @ this for a few days now. The code works like a champ. I just need the results printed @ the specified loc(myOutput.txt). Unfortionaly this is giving me trouble, can someone help me a little and figure out where I went wrong: include #include #include void main(void) { char c; int N,x,iter = 1; FILE *outptr; ... |
Hi everyone. I'm making a program that uses the functions fseek(), fprintf() and fscanf(). It doesn't work when I recover the data I just stored. here's the code: #include #include void WriteData(), ReadData(); FILE *fp; int Data[10]; long int i; int main (void) { WriteData(); ReadData(); } void WriteData() { /* I open the file here with fp = ... |
45. fprintf cboard.cprogramming.comSorry, derr me.. void error(int i) { char *e[] = {"\nDigit Expected.", "\nNot a valid cc check digit.", "\nInvalid input.", "\nNot enough characters to be a valid customer name.", "\nInvalid record no first letter.", "\nInvalid address format, not enough fields." , "\nMoney amount, digit expected.", "\nNot a valid Part code check digit." }; if(lines>57) { /* new page needed for next ... |
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hello i am using C to design compressors i defined a function called it cdesign which has 10 input parameters the function is expected to make some calculations i want to use fwrite to write the results to a csv file..now that is not working note that i used fwrite within the cdesign function i call the cdesign function from main ... |
49. Fprintf() forums.devshed.comI am really somewhat perplexed that a person with the experience of the OP cannot use well-defined tools, such as "fprintf". The signature of one of the respondents, regarding the term "help vampire", though it is not directed to any particular OP, seems to be germane. It brings to mind Mr. Dellthinker. Just sayin'. There was a time when I would ... |
"America's abundance was created not by public sacrifices to "the common good," but by the productive genius of free men who pursued their own personal interests and the making of their own private fortunes. They did not starve the people to pay for America's industrialization. They gave the people better jobs, higher wages and cheaper goods with every new machine they ... |
#include #include #include #include "person.h" /* write a struct to the file */ void WritePersonFixedLength(struct person * input, FILE * target) { //use fprintf to write input->firstname '%-20s' fprintf(target, "%-20s", input->firstname); //use fprintf to write input->middlename '%-20s' fprintf(target, "%-20s", input->middlename); //use fprintf to write input->lastname '%-20s' fprintf(target, "%-20s", input->lastname); //use fprintf to write input->age '%8d' fprintf(target, "%8d", input->age); ... |
#include #include #include #include "Nclient.h" void turn_front_sonar_on(void) { int sn_order[16] = {0,2,4,6,8,10,12,14}; conf_sn(50, sn_order); conf_tm(15); } /* * main */ main(void) { FILE *pFile; int i; connect_robot(1, MODEL_SCOUT2, "/dev/ttyS0", 38400); pFile = fopen ("log_in.txt","a"); /* turn on the front sonars */ turn_front_sonar_on(); /* the loop */ while(1) { gs(); i = 0; do { fprintf(pFile,"%d ",State[STATE_SONAR_0+i]); i=i+2; } ... |
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The following code works fine.[code]FILE *result;result = fopen ("results.txt", "r"); fprintf(result, "raw array is as follows\n");//line 1for (k=0; k<100; k++){ temp[k] = raw[k]; fprintf(result, "%lf\n", raw[k]);}fclose(result);[\code]k, raw and temp are initialized and everything. Works fine.But the following code[code]FILE *result;result = fopen ("results.txt", "r");fprintf(result, "raw array is as follows\n");//line 1for (k=0; k<100; k++){ temp[k] = raw[k]; ... |