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19 lines
435 B
C
19 lines
435 B
C
#include <stdlib.h> //getenv, atoi
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#include <stdio.h> //printf
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int main()
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{
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// pointer to a char
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char *repstext = getenv("reps");
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// atoi reads in the string and converts it to a integer value.
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// This is the tenary operator 'condition ? value_if_true : value_if_false'
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int reps = repstext ? atoi(repstext) : 10;
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char *msg = getenv("msg");
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if (!msg)
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msg = "Hello.";
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for (int i = 0; i < reps; i++)
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printf("%s\n", msg);
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}
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