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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30764-6b81f1f3fa) Lines: 1881 2002 94.0 % Date: 2026-03-23 09:27:26 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
addTp	7
mulqf	28
kro_quad	35
Zp_nosquare_m1	42
divfq	42
divqf	63
sqrq	70
addqf	77
conjvec	84
is_ext_qfr	98
warn_coercion	126
divRq	301
mulqq	1127
addRq	1302
mulRq	2387
divTp	3674
addsub_polmod	7210
ser_normalize	7658
quad_polmod_conj	18403
quad_polmod_norm	18403
div_scal_ser	19096
div_rfrac_scal	32435
div_polmod_same	37016
sqr_ser_part	113907
mul_gen_rfrac	161376
inv_polmod	189774
fix_rfrac	206780
Q_to_Fp	226838
div_rfrac_pol	260657
mul_ser_scal	323974
div_intmod_same	341560
gconj	390604
add_ser_scal	417278
sqr_polmod	419392
div_ser	875766
sub_intmod_same	1017828
div_scal_rfrac	1052280
div_rfrac	1187496
divpT	1204910
div_ser_scal	1543591
gdivgunextu	1583803
Qdivis	1762586
mul_polmod	2674945
divRc	2893997
mul_intmod_same	2985333
mulcxmI	2985972
add_rfrac	3017228
mul_polmod_scal	3219557
gsubsg	3267102
add_intmod_same	3410747
ser_add	4094149
addQp	4763025
mulTp	4985916
mulcxpowIs	5565062
quad_polmod_mul	5860237
pol2ser	6378555
div_T_scal	7293133
mul_self_scal	7663586
mul_rfrac	7910194
_serprec	8187500
mul_polmod_same	8532791
add_rfrac_scal	8823769
rfrac_denom_mul_scal	9852085
mul_rfrac_scal	10435434
mulcIR	11894568
divpp	13213126
gdivgs	13376010
addsub_polmod_scal	13457870
addsub_frac_i	14153907
div_scal_pol	14531927
setfrac	15036154
div_scal_T	15557229
mulcxI	15654235
mulpp	17505682
addsub_pp	19975063
divcR	23425325
mkpadic_mod	24595264
add_scal	29398620
conj_i	31552353
mulrfrac	38071147
ginv	38283638
gred_rfrac2	39473628
addsub_frac	40739089
Leading_is_neg	57628765
gred_rfrac_simple	57631881
gdivgu	61806172
utoi_sign	65021372
Qdivii	143118056
gmul2n	146070891
Qdiviu	151470147
transtype	154217663
mul_scal	197840537
divrunextu	213814635
gmulsg	242520799
gaddsg	270811530
mulcc	281558973
gmulug	283938451
addRc	310694870
mulRc	355346770
gdiv	452878248
gsqr	1343436016
gsub	2898075034
gadd	6246688453
gmul	8958597247

Generated by: LCOV version 1.16