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https://stackoverflow.com/questions/15614620/c90-doesnt-allow-lf-use-in-printf-why
Mar 24, 2013 · Compiler gives this warning. ISO C90 does not support the ‘%lf’ gnu_printf format [-Wformat] I use the gcc compiler in ubuntu terminal with (-o -Wall -ansi -pedantic-errors) What's the reason behind this? I searched web and found this use is …
https://www.daniweb.com/programming/software-development/threads/508263/cosine-function
cosine function Home. Programming Forum ... ISO C90 does not support the ‘%lf’ gnu_printf format [-Wformat] my_cos.c:28:3: warning: ISO C90 does not support the ‘%lf’ gnu_printf format [-Wformat] i just noticed that when i compile it again (2 times ) it just gone and still with the rest :
https://answers.yahoo.com/question/index?qid=20100621025128AAUkIab
Jun 21, 2010 · will indeed print the same pointer value, since a call to free() does not change the value of the pointer itself, it only deallocates the space that is pointed to. Accessing that space, as you do with *ptr in the second call to printf() is undefined behavior -- anything can occur.
https://cboard.cprogramming.com/c-programming/62836-better-way-display-lf-numbers.html
Mar 09, 2005 · As the warning states, the format is incorrect for C90. And as already suggested, the C90 cure is to use %f-- this is different from scanf because printf is not scanf. Floating point arguments to printf are automatically promoted to double, and %f is the specifier for a double (and a float).
https://www.daniweb.com/programming/software-development/threads/115324/crashing-on-printf
Crashing on printf Home. Programming Forum ... %lf is not a valid format, so who knows what's going on as it tries to make sense of it. ... In function `main': foo.c:5: warning: ISO C90 does not support the `%lf' printf format $ cat foo.c #include <stdio.h> int main() { float a; printf("%lf\n", a ); return 0; } If, as you say, this only happens ...
https://www.tek-tips.com/viewthread.cfm?qid=1372225
May 29, 2007 · actually, I've made the program. but it still doesn't work well...the task is from my lecturer.. the task is about the function. after I enter the real number X and an integer number N. the program computes the value for Z, using factoring over N terms. the program also prints out the value of Z, cos(Z), and the N-th term. only use the function, not the pointer and the array..
https://curl.haxx.se/mail/lib-2012-06/0429.html
Jun 30, 2012 · > warning: ISO C does not support the 'I64' ms_printf length modifier > ... > As the warning shows, it seems like mingw32's ISO C does not support > the I64 length modifier. Since I am not familiar with curl's internal > printf functions, I would like to ask if someone could fix this by
https://cboard.cprogramming.com/c-programming/132651-calculating-integral.html
Dec 04, 2010 · printf("Here in loop, counter=%d\n", i ); If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut. If at first you don't succeed, try writing your phone number on the exam paper .
https://bytes.com/topic/c/answers/218117-negative-zeroes-program-output
Nov 14, 2005 · Unofficial reason: far too much broken code used %lf in printf and practically all implementors ignored the l in this context: fangorn:~/tmp 573> gcc -Wall test.c fangorn:~/tmp 574> gcc -pedantic -Wall test.c test.c: In function `main': test.c:5: warning: ISO C90 does not support the `%lf' printf format Dan--Dan Pop DESY Zeuthen, RZ group
https://en.cppreference.com/w/c/io/fprintf
printf, fprintf, sprintf, snprintf, printf_s, fprintf_s, sprintf_s, snprintf_s ... writing conversion specifier % n is a common target of security exploits where format strings depend on user input and is not supported by the bounds-checked printf_s family of functions. ... C89/C90 standard (ISO/IEC 9899:1990): 4.9.6.1 The fprintf function
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