48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/*
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* DO NOT MODIFY THE CONTENTS OF THIS FILE.
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* IT WILL BE REPLACED DURING GRADING
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*/
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#include <stdlib.h>
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#include "argo.h"
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#include "global.h"
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#include "debug.h"
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/**
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* @brief Append a specified character to a specified string.
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* @details This function takes a pointer to an ARGO_STRING structure,
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* which is assumed previously to have been initialized (an ARGO_STRING
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* is initialized to empty by zeroing its fields) and an ARGO_CHAR
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* value, representing an arbitrary Unicode code point, and it appends
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* the character to the string, taking care of reallocating the string
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* content into a new memory area if its length has grown to exceed
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* the area already allocated for it.
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*
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* @return Zero if the operation completes without error, nonzero if
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* there was a failure to allocate additional memory required to
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* accomodate the string.
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*/
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int argo_append_char(ARGO_STRING *s, ARGO_CHAR c) {
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if(s->capacity == 0) {
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s->capacity = 10;
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s->content = malloc(s->capacity * sizeof(ARGO_CHAR));
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if(!s->content) {
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fprintf(stderr, "[%d] Failed to allocate space for string text",
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argo_lines_read);
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return 1;
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}
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}
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if(s->length == s->capacity) {
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s->capacity *= 2;
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s->content = realloc(s->content, s->capacity * sizeof(ARGO_CHAR));
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if(!s->content) {
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fprintf(stderr, "[%d] Failed to allocate space for string text",
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argo_lines_read);
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return 1;
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}
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}
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s->content[s->length++] = c;
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return 0;
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}
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