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The term "fprintf" is a command used in the computer programming language C++. The command "fprintf" in C++ is used to print formatted data to a stream.
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What is the difference between cprintf and printf?
The printf function calls on fprintf to write the result of sprintf to standard output. That is:printf("%i\n", 42);is exactly equivalent to:fprintf(stdout, "%i\n", 42);
What is the perror function used for in C programming?
The perror() function is used to print a user-defined error message to stderr. Consider the following:Example:#include int main (){FILE * pFile;pFile=fopen ("missing.txt","rb");if (pFile==NULL)perror ("missing.txt");elsefclose (pFile);return 0;}Possible Output:missing.txt: No such file or directoryWe can achieve the exact same effect with a more verbose fprintf() statement, such that the following are equivalent:perror ("Error");fprintf (stderr, "Error: %s\n", strerror (errno));The following are also equivalent:perror (NULL);fprintf (stderr, strerror (errno));We typically use fprintf() statement when we need to print messages other than those provided by strerror and/or wish to redirect the output to a device other than stderr. But for all error messages based upon the thread-local errno, perror is more concise and reduces the chances of introducing errors through typos (such as accidently redirecting errors to stdout instead of stderr).
How do you write c file arguments?
Using parameters argc and argv, and library functions fopen, fprintf, fclose
How do you calculate cgpa using c plus plus program?
#include <stdio.h> void main() { int num,num1,num2, cal; num=cal=0; char grade1=cal=0,grade2=cal=0; printf("\n Enter the number of subjects taken in Spring Semester:"); scanf("%d", &num); fflush(stdin);// if(grade1==4){ printf("\n\nEnter the Math Grade(A,B,C): %c",grade1); do{ printf("\ngrade1="); scanf("%d",&cal); } else if( printf("\nError!\n\n"); }while(1); printf("\nEnter the Math Credit hours(1~3):"); num1 = getchar(); grade1=4; } else if(grade2==3){ grade2=3; } printf("\nEnter the Math Grade(A,B,C):\n"); scanf("%c",&grade1); printf("Enter the Physics Grade(A,B,C):"); grade2 = getchar(); printf("\nEnter the Physics Credit hours(1~3):"); num2 = getchar(); printf("\nMath Credit hours: %d",num1); printf("\nPhysics Grade: %c",grade2); printf("\nPhysics Credit hours:%d\n",num2); printf("\n <Math Credit hours> \n"); do{ printf("\n 1 + 1 = "); scanf("%d", &cal); }while(cal != 3); printf("\n Error!\n\n"); } printf("\n <Physics Credit hours> \n"); do{ printf("\n 4 - 1 = "); scanf("%d", &cal); }while(cal != 3); printf("\n Error!\n"); } printf("\n The End.\n"); system("pause"); }
What do you do when you receive the command 'Write C code to read input from user and save the input to a sequential file'?
Learn C! :-) There are several functions in C that can be used to read input from the user, such as getc(), getchar(), and scanf(). Files can be written to using fprintf() and putc(). They can be opened with fopen() and closed with fclose().
Difference between printf and fprintf?
printf (*) is equal to fprintf (stdout, *)
How do you display strings?
C: puts, printf, fputs, fprintf, write, fwrite...
What is the difference between cprintf and printf?
The printf function calls on fprintf to write the result of sprintf to standard output. That is:printf("%i\n", 42);is exactly equivalent to:fprintf(stdout, "%i\n", 42);
How files are created and used in c?
Files are created and used in C with the stdio library functions fopen, fread, fwrite, fprintf, fscanf, fclose, etc. A trivial example that writes one line to a file... FILE *file; file = fopen ("somefile.txt"); if (file == null) { ... error code ... } else fprintf (file, "This is a line of data in a file\n"); fclose (file); } This will create and write a standard "text" file that can be subsequently opened with a standard text editor such as notepad (windows) or vi (unix).
What is the perror function used for in C programming?
The perror() function is used to print a user-defined error message to stderr. Consider the following:Example:#include int main (){FILE * pFile;pFile=fopen ("missing.txt","rb");if (pFile==NULL)perror ("missing.txt");elsefclose (pFile);return 0;}Possible Output:missing.txt: No such file or directoryWe can achieve the exact same effect with a more verbose fprintf() statement, such that the following are equivalent:perror ("Error");fprintf (stderr, "Error: %s\n", strerror (errno));The following are also equivalent:perror (NULL);fprintf (stderr, strerror (errno));We typically use fprintf() statement when we need to print messages other than those provided by strerror and/or wish to redirect the output to a device other than stderr. But for all error messages based upon the thread-local errno, perror is more concise and reduces the chances of introducing errors through typos (such as accidently redirecting errors to stdout instead of stderr).
How do you write to a file using C?
The following example code uses fprintf to save some text to a file.Code Example:#include #include #define szMY_DATA "Some example data." #define szFILENAME "testfile.txt" int main(void) { FILE *fpMyFile = fopen(szFILENAME, "w"); /* open testfile.txt for */ /* writing */ if(fpMyFile != NULL) /* make sure opening the file was successful */ { /* using fprintf to print szMY_DATA to szFILENAME */ if(fprintf(fpMyFile, szMY_DATA) != strlen(szMY_DATA)) { /* ERROR. fprintf returns how many characters were written, so */ /* if it's not the same as the string length there was an error. */ } if(fclose(fpMyFile)) { /* ERROR. fclose returns 0 if there weren't any errors. */ } } else { /* ERROR. Failed to open the file. */ } return 0; }
Write a program in matlab that solve a quadratic equation?
You can solve a quadratic equation in MATLAB using the quadratic formula. Here is an example code snippet: a = 1; b = 5; c = 6; delta = b^2 - 4ac; if delta > 0 x1 = (-b + sqrt(delta))/(2a); x2 = (-b - sqrt(delta))/(2a); disp(['The solutions are: x1 = ', num2str(x1), ', x2 = ', num2str(x2)]); elseif delta == 0 x = -b/(2*a); disp(['The solution is: x = ', num2str(x)]); else disp('No real solutions'); end
When you can use percent f in c language?
%f is used as a format mask to represent a floating point number.Any of the "formatted" io functions can use this: printf, fprintf, scanf, etc.Example:float n = 1.5;printf("%f", n); // prints the value of n
How do you access .txt to c?
Consult your help (or man, info etc.) system, the functions you can use are: fopen/fclose, fgets/fread/fscanf, fputs/fwrite/fprintf
How do you write c file arguments?
Using parameters argc and argv, and library functions fopen, fprintf, fclose
What is the term used to describe the curvature of an aerofoil?
The camber is the term used
How do you calculate cgpa using c plus plus program?
#include <stdio.h> void main() { int num,num1,num2, cal; num=cal=0; char grade1=cal=0,grade2=cal=0; printf("\n Enter the number of subjects taken in Spring Semester:"); scanf("%d", &num); fflush(stdin);// if(grade1==4){ printf("\n\nEnter the Math Grade(A,B,C): %c",grade1); do{ printf("\ngrade1="); scanf("%d",&cal); } else if( printf("\nError!\n\n"); }while(1); printf("\nEnter the Math Credit hours(1~3):"); num1 = getchar(); grade1=4; } else if(grade2==3){ grade2=3; } printf("\nEnter the Math Grade(A,B,C):\n"); scanf("%c",&grade1); printf("Enter the Physics Grade(A,B,C):"); grade2 = getchar(); printf("\nEnter the Physics Credit hours(1~3):"); num2 = getchar(); printf("\nMath Credit hours: %d",num1); printf("\nPhysics Grade: %c",grade2); printf("\nPhysics Credit hours:%d\n",num2); printf("\n <Math Credit hours> \n"); do{ printf("\n 1 + 1 = "); scanf("%d", &cal); }while(cal != 3); printf("\n Error!\n\n"); } printf("\n <Physics Credit hours> \n"); do{ printf("\n 4 - 1 = "); scanf("%d", &cal); }while(cal != 3); printf("\n Error!\n"); } printf("\n The End.\n"); system("pause"); }
