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  1. #include <ctype.h>
  2. #include <stdio.h>
  3.  
  4. int main(void) {
  5.     printf("isdigit('4') devolve %d.\n", isdigit('4'));
  6.     printf("isdigit('a') devolve %d.\n", isdigit('a'));
  7.     printf("isdigit('B') devolve %d.\n", isdigit('B'));
  8.     printf("isdigit('\\n') devolve %d.\n", isdigit('\n'));
  9.     return 0;
  10. }
Success #stdin #stdout 0s 1832KB
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stdin
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Standard input is empty
stdout
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isdigit('4') devolve 2048.
isdigit('a') devolve 0.
isdigit('B') devolve 0.
isdigit('\n') devolve 0.
https://ideone.com/GjSavF
language:
C99 (gcc 8.3)
created:
10 years ago
visibility:
secret

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