libgis: G_vasprintf bug fix #3650
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@nilason What's your opinion on this? It was fixing a bug 6 months ago caught in the cmake PR. |
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The build errors were no longer visible, so I updated the branch again. |
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The error is Details: |
nilason
reviewed
Oct 25, 2024
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| for (;;) { | ||
| if (count >= osize) { |
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This addresses the warning, and take into account if the previous vsnprintf call fails.
Suggested change
| if (count >= osize) { | |
| if (count < 0) | |
| return count; | |
| if ((size_t)count >= osize) { |
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This PR fixes a
G_vasprintfbug for#elseof#ifdef HAVE_ASPRINTF.From the man page of
vsnprintf():size *= 2becausecountis already the full length without\0if it's greater than or equal tosize.apcannot be reused in a for loop. It needs to be copied before its first use so we can use it again.