Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - alglin2.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30702-bddb8d6928) Lines: 1078 1189 90.7 % Date: 2026-02-23 02:23:56 Functions: 89 96 92.7 % Legend: Lines: hit not hit

Function Name	Hit count
Flm_trace	0
Frobeniusform	0
QM_ImZ_hnf	0
QM_ImZ_hnfall	0
RgM_replace	0
RgXQ_minpoly_FpXQ	0
gc_mat2	0
qfgaussred2	5
RgM1_char	6
adjsafe	6
qfcholesky	10
caract	12
qfgaussred	16
qfgaussred0	16
RgM_adj_from_char	18
RgXQ_minpoly_FpXQXQ	18
cxquadnorm	23
QM_ImZ	24
QM_ImZ_all	24
jacobi	24
matcompanion	29
RgM_Fp_charpoly	30
QM_minors_coprime	36
caract_const	36
RgM_minpoly	42
minpoly_listpolslice	42
QM_ImQ	48
bad_char	48
RgXQ_minpoly_naive	54
pnormlpvec	54
adj	90
matadjoint0	96
caradj	102
matrixqz0	114
RgM_hess_charpoly	144
carhess	144
gnorml1	144
RgM_hess	150
hess	150
pnormlp	168
minpoly_dvdslice	174
QM_charpoly_ZX_bound	228
relative0	312
gnormlp	318
matfrobenius	432
minpoly_polslice	432
RgM_Frobenius	474
charpoly0	474
transS	540
FpM_hess	688
weakfrobenius_step1	708
weakfrobenius_step2	708
weakfrobenius_step3	708
QM_ImQ_hnf	1014
carberkowitz	1500
QM_charpoly_ZX	1584
mattrace	1686
fix_pol	1704
Flm_charpoly	1903
ZM_charpoly	2067
transD	2436
RgXQ_minpoly	2701
RgXQ_minpoly_fast	2701
QM_ImQ_hnfall	2922
QM_ImQ_all	2970
QM_ImZ_all_i	2988
easymin	3000
minpoly	3000
charpoly	3327
charpoly_bound	3375
QM_charpoly_ZX_slice	3737
QM_charpoly_ZX_worker	3737
QM_charpoly_ZX_i	3879
intersect	4344
easychar	5151
qfsign	9831
gaussred	9847
transL	13062
rot	16440
FpM_charpoly	25364
Flm_charpoly_i	29681
Flm_hess	29681
Flm_hess_pre	29681
suitable	37290
RgM_Cholesky	55778
qfgaussred_positive	56819
gnorml1_fake	166830
FpM_trace	188342
ZM_trace	248166
gtrace	637395
gsupnorm	1020481
gnorm	3014955
store	24286028
gsupnorm_aux	29211394
gnorml2	30444893
gnorml2_i	30444917

Generated by: LCOV version 1.16